annotate Discovery/Src/vpm.c @ 907:46a21ff3f5ab Evo_2_23

Adaptation custom view deco plan for VPM: The VPM deco plan now shows the start of deco zone as well as the state of the deco table state. In case the table defined when reaching the deco zone is updated then the header line will change to yellow to indicate this. In case a deco stop is missed the head line will change to red.
author ideenmodellierer
date Sun, 13 Oct 2024 18:13:35 +0200
parents d4622533271d
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1 ///////////////////////////////////////////////////////////////////////////////
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2 /// -*- coding: UTF-8 -*-
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3 ///
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4 /// \file Discovery/Src/vpm.c
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5 /// \brief critical_volume comment by hw
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6 /// \author Heinrichs Weikamp, Erik C. Baker
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7 /// \date 19-April-2014
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8 ///
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9 /// \details
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10 ///
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11 /// $Id$
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12 ///////////////////////////////////////////////////////////////////////////////
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13 /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
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14 ///
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15 /// This program is free software: you can redistribute it and/or modify
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16 /// it under the terms of the GNU General Public License as published by
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17 /// the Free Software Foundation, either version 3 of the License, or
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18 /// (at your option) any later version.
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19 ///
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20 /// This program is distributed in the hope that it will be useful,
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21 /// but WITHOUT ANY WARRANTY; without even the implied warranty of
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22 /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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23 /// GNU General Public License for more details.
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24 ///
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25 /// You should have received a copy of the GNU General Public License
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26 /// along with this program. If not, see <http://www.gnu.org/licenses/>.
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27 //////////////////////////////////////////////////////////////////////////////
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28 /// \par Varying Permeability Model (VPM) Decompression Program in c (converted from FORTRAN)
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29 ///
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30 /// Author: Erik C. Baker
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31 ///
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32 /// "DISTRIBUTE FREELY - CREDIT THE AUTHORS"
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33 ///
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34 /// This program extends the 1986 VPM algorithm (Yount & Hoffman) to include
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35 /// mixed gas, repetitive, and altitude diving. Developments to the algorithm
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36 /// were made by David E. Yount, Eric B. Maiken, and Erik C. Baker over a
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37 /// period from 1999 to 2001. This work is dedicated in remembrance of
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38 /// Professor David E. Yount who passed away on April 27, 2000.
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39 ///
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40 /// Notes:
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41 /// 1. This program uses the sixteen (16) half-time compartments of the
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42 /// Buhlmann ZH-L16 model. The optional Compartment 1b is used here with
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43 /// half-times of 1.88 minutes for helium and 5.0 minutes for nitrogen.
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44 ///
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45 /// 2. This program uses various DEC, IBM, and Microsoft extensions which
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46 /// may not be supported by all FORTRAN compilers. Comments are made with
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47 /// a capital "C" in the first column or an exclamation point "!" placed
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48 /// in a line after code. An asterisk "*" in column 6 is a continuation
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49 /// of the previous line. All code, except for line numbers, starts in
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50 /// column 7.
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51 ///
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52 /// 3. Comments and suggestions for improvements are welcome. Please
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53 /// respond by e-mail to: EBaker@se.aeieng.com
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54 ///
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55 /// Acknowledgment: Thanks to Kurt Spaugh for recommendations on how to clean
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56 /// up the code.
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57 /// ===============================================================================
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58 /// Converted to vpmdeco.c using f2c; R.McGinnis (CABER Swe) 5/01
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59 /// ===============================================================================
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60 ///
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61 /// ************************ Heirichs Weipkamp **************************************
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62 ///
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63 /// The original Yount & Baker code has been adjusted for real life calculation.
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64 ///
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65 /// 1) The original main function has been split in several functions
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66 ///
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67 /// 2) When the deco zone is reached (while ascending) the gradient factors are kept fix
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68 /// and critical volume algorithm is switched of. maxfirststopdepth is kept fix
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69 /// to make shure Boeyls Law algorithm works correctly
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70 ///
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71 /// 4) gas_loadings_ascent_descend heeds all gaschanges and CCR support has been added
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72 ///
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73
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74 #include <stdio.h>
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75 #include <stdlib.h>
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76 #include <string.h>
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77 #include <math.h>
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78 #include <time.h>
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79
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80 #include "vpm.h"
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81 #include "decom.h"
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82
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83 #define GAS_N2 0
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84 #define GAS_HE 1
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85
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86 static const _Bool buehlmannSafety = true;
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87 /* Common Block Declarations */
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88
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89 extern const float SURFACE_TENSION_GAMMA; //!Adj. Range: 0.015 to 0.065 N/m
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90 extern const float SKIN_COMPRESSION_GAMMAC; //!Adj. Range: 0.160 to 0.290 N/m
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91 extern const float UNITS_FACTOR;
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92 extern const float WATER_VAPOR_PRESSURE; // (Schreiner value) based on respiratory quotien
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93 extern const float CRIT_VOLUME_PARAMETER_LAMBDA; //!Adj. Range: 6500 to 8300 fsw-min
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94 //extern const float GRADIENT_ONSET_OF_IMPERM_ATM; //!Adj. Range: 5.0 to 10.0 atm
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95 extern const float REGENERATION_TIME_CONSTANT; //!Adj. Range: 10080 to 51840 min
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96 //extern const float PRESSURE_OTHER_GASES_MMHG; //!Constant value for PO2 up to 2 atm
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97 extern const float CONSTANT_PRESSURE_OTHER_GASES; // PRESSURE_OTHER_GASES_MMHG / 760. * UNITS_FACTOR;
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98
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99 extern const float HELIUM_TIME_CONSTANT[];
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100 extern const float NITROGEN_TIME_CONSTANT[];
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101
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102 static float minimum_deco_stop_time;
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103 static float run_time, run_time_first_stop;
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104 static float segment_time;
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105 static short mix_number;
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106 static float barometric_pressure;
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107 static _Bool altitude_dive_algorithm_off;
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108 static _Bool units_equal_fsw, units_equal_msw;
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109
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110 /* by hw 11.06.2015 to allow */
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111 static float gCNS_VPM;
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112
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113 static float helium_pressure[16], nitrogen_pressure[16];
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114 static float surface_phase_volume_time[16];
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115 static float regenerated_radius_he[16], regenerated_radius_n2[16];
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116 static float allowable_gradient_he[16], allowable_gradient_n2[16];
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117
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118 //_Bool deco_zone_reached;
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119 static _Bool critical_volume_algorithm_off;
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120 static float max_first_stop_depth;
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121 static float max_deco_ceiling_depth;
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122 //Boylslaw compensation
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123 static float deco_gradient_he[16];
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124 static float deco_gradient_n2[16];
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125 static int vpm_calc_what;
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126 static int count_critical_volume_iteration;
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127 static short number_of_changes;
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128 static float depth_change[11];
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129 static float step_size_change[11];
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130 static float rate_change[11];
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131 static short mix_change[11];
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132
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133 static const _Bool vpm_b = true;
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134
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135 static SvpmTableState vpmTableState = VPM_TABLE_INIT;
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136 static SDecoinfo vpmTable;
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137
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138 extern const float float_buehlmann_N2_factor_expositon_20_seconds[];
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139 extern const float float_buehlmann_He_factor_expositon_20_seconds[];
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140 extern const float float_buehlmann_N2_factor_expositon_one_minute[];
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141 extern const float float_buehlmann_He_factor_expositon_one_minute[];
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142 extern const float float_buehlmann_N2_factor_expositon_five_minutes[];
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143 extern const float float_buehlmann_He_factor_expositon_five_minutes[];
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144 extern const float float_buehlmann_N2_factor_expositon_one_hour[];
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145 extern const float float_buehlmann_He_factor_expositon_one_hour[];
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146
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147 static float depth_start_of_deco_calc;
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148 static float depth_start_of_deco_zone;
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149 static float first_stop_depth;
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150 static float run_time_start_of_deco_zone;
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151
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152 static float r_nint(float *x);
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153 static float r_int(float *x);
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154 static _Bool nullzeit_unter60;
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155 static int vpm_calc_status;
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156 static _Bool buehlmann_wait_exceeded = false;
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157
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158 static SLifeData* pInput = NULL;
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159 static SVpm* pVpm = NULL;
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160 static SDecoinfo* pDecoInfo = NULL;
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161 static SDiveSettings* pDiveSettings = NULL;
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162
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163 static float r_nint(float *x)
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164 {
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165 return( (*x)>=0 ?
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166 floorf(*x + 0.5f) : -floorf(0.5f - *x) );
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167 }
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168
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169 static float r_int(float *x)
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170 {
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171 return( (*x>0.0) ? floorf(*x) : -floorf(- *x) );
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172 }
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173
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174 /** private functions
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175 */
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176 extern int radius_root_finder (float *a, float *b, float *c,float *low_bound, float *high_bound, float *ending_radius);
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177
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178 static int nuclear_regeneration(float *dive_time);// clock_();
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179 static int calc_deco_ceiling(float *deco_ceiling_depth,_Bool fallowablw);
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180 static int critical_volume(float *deco_phase_volume_time); ;
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181 static int calc_start_of_deco_zone(float *starting_depth, float *rate, float *depth_start_of_deco_zone);
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182 static int calc_initial_allowable_gradient(void);
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183 static void decompression_stop(float *deco_stop_depth, float *step_size, _Bool final_deco_calculation);
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184 static int gas_loadings_ascent_descen(float* helium_pressure, float* nitrogen_pressure, float starting_depth,float ending_depth, float rate,_Bool check_gas_change);
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185 static int calc_surface_phase_volume_time(void);
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186 static int calc_max_actual_gradient(float *deco_stop_depth);
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187 static int projected_ascent(float *starting_depth, float *rate, float *deco_stop_depth, float *step_size);
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188 static void vpm_calc_deco(void);
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189 static int vpm_calc_critcal_volume(_Bool begin,_Bool calc_nulltime);
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190 static int vpm_check_converged(_Bool calc_nulltime);
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191 static int vpm_calc_final_deco(_Bool begin);
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192 static void BOYLES_LAW_COMPENSATION (float* First_Stop_Depth,float * Deco_Stop_Depth,float* Step_Size);
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193 static int vpm_calc_ndl(void);
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194 static void vpm_init_1(void);
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195 static void vpm_calc_deco_ceiling(void);
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196
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197 uint8_t vpm_get_decozone(void);
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198
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199 static void vpm_init_1(void)
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200 {
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201 units_equal_msw = true;
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202 units_equal_fsw = false;
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203 altitude_dive_algorithm_off= true; //!Options: ON or OFF
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204 minimum_deco_stop_time=1.0; //!Options: float positive number
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205 critical_volume_algorithm_off= false; //!Options: ON or OFF
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206 run_time = 0.;
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207 //barometric_pressure = dive_data.surface * 10;
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208
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209 //mix_number = dive_data.selected_gas + 1;
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210
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211 max_first_stop_depth = 0;
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212 max_deco_ceiling_depth = 0;
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213 //deco_zone_reached = false;
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214 depth_start_of_deco_calc = 0;
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215 depth_start_of_deco_zone = 0;
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216 first_stop_depth = 0;
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217 run_time_start_of_deco_zone = 0;
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218
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219 gCNS_VPM = 0;
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220 }
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221
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222 float vpm_get_CNS(void)
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223 {
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224 return gCNS_VPM;
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225 }
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226
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227
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228 void vpm_maintainTable(SLifeData* pLifeData,SDecoinfo* pDecoInfo)
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229 {
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230 static uint32_t lastDiveSecond = 0;
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231 uint8_t actual_deco_stop = 0;
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232 int8_t index = 0;
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233 uint8_t decreaseStopTime = 1;
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234
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235 if(lastDiveSecond < pLifeData->dive_time_seconds)
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236 {
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237 lastDiveSecond = pLifeData->dive_time_seconds;
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238 actual_deco_stop = decom_get_actual_deco_stop((SDiveState*)stateUsed);
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239
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240 pDecoInfo->output_time_to_surface_seconds = 0;
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241 for(index = DECOINFO_STRUCT_MAX_STOPS -1 ;index >= 0; index--)
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242 {
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243 if(pDecoInfo->output_stop_length_seconds[index] > 0)
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244 {
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245 if(decreaseStopTime)
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246 {
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247 if((pLifeData->depth_meter > (float)(actual_deco_stop - 1.5))
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248 && (pLifeData->depth_meter < (float)actual_deco_stop + 1.5))
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249 {
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250 pDecoInfo->output_stop_length_seconds[index]--;
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251 decreaseStopTime = 0;
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252 }
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253 else if (pLifeData->depth_meter < (float)(actual_deco_stop - 1.5)) /* missed deco stop */
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254 {
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255 vpmTableState = VPM_TABLE_MISSED;
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256 pDecoInfo->output_stop_length_seconds[index] = 0;
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257 decreaseStopTime = 0;
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258 }
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259 }
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260 pDecoInfo->output_time_to_surface_seconds += pDecoInfo->output_stop_length_seconds[index];
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261 }
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262 }
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263 pDecoInfo->output_time_to_surface_seconds += pLifeData->depth_meter / 10.0 * 60.0;
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264 }
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265 else if(lastDiveSecond > pLifeData->dive_time_seconds)
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266 {
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267 lastDiveSecond = pLifeData->dive_time_seconds;
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268 }
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269 }
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270
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271 int vpm_calc(SLifeData* pINPUT,
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272 SDiveSettings* pSettings,
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273 SVpm* pVPM,
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274 SDecoinfo*
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275 pDECOINFO,
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276 int calc_what)
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277 {
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278 static uint8_t vpmTableActive = 0;
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279
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280 vpm_init_1();
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281 //decom_CreateGasChangeList(pSettings, pINPUT);
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282 vpm_calc_what = calc_what;
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283 /**clear decoInfo*/
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284
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285 if((vpmTableActive) && (vpm_calc_what == DECOSTOPS))
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286 {
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287 memcpy(&vpmTable, pDECOINFO, sizeof(SDecoinfo)); /* save changes done by e.g. the simulator */
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288 }
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289 pDECOINFO->output_time_to_surface_seconds = 0;
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290 pDECOINFO->output_ndl_seconds = 0;
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291 pDECOINFO->output_ceiling_meter = 0;
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292 pDECOINFO->super_saturation = 0;
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293 uint8_t tmp_calc_status;
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294 for(int i=0;i<DECOINFO_STRUCT_MAX_STOPS;i++)
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295 {
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296 pDECOINFO->output_stop_length_seconds[i] = 0;
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297 }
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298
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299 if(pINPUT->dive_time_seconds_without_surface_time < 60)
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300 {
292
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301 vpm_calc_status = CALC_NDL;
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302 return vpm_calc_status;
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303 }
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304 pVpm = pVPM;
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305 pInput = pINPUT;
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306 pDecoInfo = pDECOINFO;
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307 pDiveSettings = pSettings;
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308
292
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309 if(vpm_calc_status == CALC_NDL)
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310 {
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311 tmp_calc_status = vpm_calc_ndl();
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312 }
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313 else
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314 {
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315 tmp_calc_status = CALC_BEGIN;
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316 }
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317 //Normal Deco calculation
292
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318 if(tmp_calc_status != CALC_NDL)
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319 {
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320 max_first_stop_depth = pVpm->max_first_stop_depth_save;
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321 run_time_start_of_deco_zone = pVpm->run_time_start_of_deco_zone_save;
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322 depth_start_of_deco_zone = pVpm->depth_start_of_deco_zone_save;
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323 for (int i = 0; i < 16; ++i) {
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324 helium_pressure[i] = pInput->tissue_helium_bar[i] * 10;
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325 nitrogen_pressure[i] = pInput->tissue_nitrogen_bar[i] * 10;
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326 }
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327 vpm_calc_deco();
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328 tmp_calc_status = vpm_calc_critcal_volume(true,false);
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329 if(vpm_calc_what == DECOSTOPS)
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330 {
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331 pVpm->max_first_stop_depth_save = max_first_stop_depth;
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332 pVpm->run_time_start_of_deco_zone_save = run_time_start_of_deco_zone;
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333 pVpm->depth_start_of_deco_zone_save = depth_start_of_deco_zone;
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334 }
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335 }
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336
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337 //Only Decostops not futute stops
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338 if(vpm_calc_what == DECOSTOPS)
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339 {
38
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340 vpm_calc_status = tmp_calc_status;
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341 if(pSettings->vpm_tableMode) /* store the most conservative deco plan and stick to it. */
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342 {
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343 if((int16_t)(pDECOINFO->output_time_to_surface_seconds - vpmTable.output_time_to_surface_seconds) > 60)
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344 {
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345 memcpy(&vpmTable, pDECOINFO, sizeof(SDecoinfo));
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346 vpmTableActive = 1;
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347 if(pVpm->deco_zone_reached) /* table should not change after deco zone was entered */
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348 {
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349 if(vpmTableState != VPM_TABLE_MISSED)
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350 {
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351 vpmTableState = VPM_TABLE_WARNING;
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352 }
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353 }
902
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354 }
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355 else
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356 {
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357 if(vpmTable.output_time_to_surface_seconds > 0)
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358 {
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359 vpm_maintainTable(pINPUT, &vpmTable);
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360 vpmTable.output_ceiling_meter = pDECOINFO->output_ceiling_meter;
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361 memcpy(pDECOINFO, &vpmTable, sizeof(SDecoinfo));
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362 }
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363 }
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364 }
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365 }
38
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366 return vpm_calc_status;
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367 }
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368
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369 void vpm_saturation_after_ascent(SLifeData* input)
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370 {
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371 int i = 0;
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372 for (i = 0; i < 16; ++i) {
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373 pInput->tissue_helium_bar[i] = helium_pressure[i] / 10;
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374 pInput->tissue_nitrogen_bar[i] = nitrogen_pressure[i] / 10;
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375 }
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376 pInput->pressure_ambient_bar = pInput->pressure_surface_bar;
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377 }
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378 /* =============================================================================== */
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379 /* NOTE ABOUT PRESSURE UNITS USED IN CALCULATIONS: */
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380 /* It is the convention in decompression calculations to compute all gas */
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381 /* loadings, absolute pressures, partial pressures, etc., in the units of */
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382 /* depth pressure that you are diving - either feet of seawater (fsw) or */
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383 /* meters of seawater (msw). This program follows that convention with the */
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384 /* the exception that all VPM calculations are performed in SI units (by */
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385 /* necessity). Accordingly, there are several conversions back and forth */
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386 /* between the diving pressure units and the SI units. */
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387 /* =============================================================================== */
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388 /* =============================================================================== */
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389 /* FUNCTION SUBPROGRAM FOR GAS LOADING CALCULATIONS - ASCENT AND DESCENT */
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390 /* =============================================================================== */
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391
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392
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393
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394 /* =============================================================================== */
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395 /* SUBROUTINE GAS_LOADINGS_ASCENT_DESCENT */
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396 /* Purpose: This subprogram applies the Schreiner equation to update the */
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397 /* gas loadings (partial pressures of helium and nitrogen) in the half-time */
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398 /* compartments due to a linear ascent or descent segment at a constant rate. */
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399 /* =============================================================================== */
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400
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401 static int gas_loadings_ascent_descen(float* helium_pressure,
38
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402 float* nitrogen_pressure,
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403 float starting_depth,
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404 float ending_depth,
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405 float rate,_Bool check_gas_change)
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406 {
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407 short i;
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408 float initial_inspired_n2_pressure,
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409 initial_inspired_he_pressure, nitrogen_rate,
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410 last_run_time,
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411 starting_ambient_pressure,
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412 ending_ambient_pressure;
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413 float initial_helium_pressure[16];
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414 float initial_nitrogen_pressure[16];
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415 float helium_rate;
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416 float fraction_helium_begin;
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417 float fraction_helium_end;
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418 float fraction_nitrogen_begin;
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419 float fraction_nitrogen_end;
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420 float ending_depth_tmp = ending_depth;
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421 float segment_time_tmp = 0;
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422 /* loop */
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423 /* =============================================================================== */
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424 /* CALCULATIONS */
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425 /* =============================================================================== */
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426 segment_time = (ending_depth_tmp - starting_depth) / rate;
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427 last_run_time = run_time;
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428 run_time = last_run_time + segment_time;
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429 do {
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430 ending_depth_tmp = ending_depth;
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431 if (starting_depth > ending_depth && check_gas_change && number_of_changes > 1)
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432 {
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433 for (i = 1; i < number_of_changes; ++i)
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434 {
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435 if (depth_change[i] < starting_depth && depth_change[i] > ending_depth)
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436 {
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437 ending_depth_tmp = depth_change[i];
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438 break;
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439 }
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440 }
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441 for (i = 1; i < number_of_changes; ++i)
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442 {
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443 if (depth_change[i] >= starting_depth)
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444 {
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445 mix_number = mix_change[i];
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446 }
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447 }
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448 }
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449 segment_time_tmp = (ending_depth_tmp - starting_depth) / rate;
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450 ending_ambient_pressure = ending_depth_tmp + barometric_pressure;
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451 starting_ambient_pressure = starting_depth + barometric_pressure;
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452 decom_get_inert_gases( starting_ambient_pressure / 10, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_begin, &fraction_helium_begin );
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453 decom_get_inert_gases( ending_ambient_pressure / 10, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_end, &fraction_helium_end );
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454
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455 initial_inspired_he_pressure = (starting_ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_helium_begin;
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456 initial_inspired_n2_pressure = (starting_ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_nitrogen_begin;
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457 //helium_rate = *rate * fraction_helium[mix_number - 1];
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458 helium_rate = ((ending_ambient_pressure - WATER_VAPOR_PRESSURE)* fraction_helium_end - initial_inspired_he_pressure)/segment_time_tmp;
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459 //nitrogen_rate2 = *rate * fraction_nitrogen[mix_number - 1];
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460 nitrogen_rate = ((ending_ambient_pressure - WATER_VAPOR_PRESSURE)* fraction_nitrogen_end - initial_inspired_n2_pressure)/segment_time_tmp;
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461
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462
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463 decom_oxygen_calculate_cns_stage_SchreinerStyle(segment_time_tmp,&pDiveSettings->decogaslist[mix_number],starting_ambient_pressure/10,ending_ambient_pressure/10,&gCNS_VPM);
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464 //if(fabs(nitrogen_rate - nitrogen_rate2) > 0.000001)
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465 //return -2;
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466 for (i = 1; i <= 16; ++i)
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467 {
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468 initial_helium_pressure[i - 1] = helium_pressure[i - 1];
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469 initial_nitrogen_pressure[i - 1] = nitrogen_pressure[i - 1];
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470 helium_pressure[i - 1] =
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471 schreiner_equation__2(&initial_inspired_he_pressure,
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472 &helium_rate,
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473 &segment_time,
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474 &HELIUM_TIME_CONSTANT[i - 1],
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475 &initial_helium_pressure[i - 1]);
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476 nitrogen_pressure[i - 1] =
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477 schreiner_equation__2(&initial_inspired_n2_pressure,
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478 &nitrogen_rate,
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479 &segment_time,
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480 &NITROGEN_TIME_CONSTANT[i - 1],
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heinrichsweikamp
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481 &initial_nitrogen_pressure[i - 1]);
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482
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parents:
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483 //nextround???
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484
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485 }
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486 starting_depth = ending_depth_tmp;
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487 } while(ending_depth_tmp > ending_depth);
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488
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489 return 0;
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490 } /* gas_loadings_ascent_descen */
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491
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diff changeset
492 static float last_phase_volume_time[16];
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diff changeset
493 static float n2_pressure_start_of_deco_zone[16];
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494 static float he_pressure_start_of_deco_zone[16];
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495 static float phase_volume_time[16];
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496 static float n2_pressure_start_of_ascent[16];
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497 static float he_pressure_start_of_ascent[16];
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498 static float run_time_start_of_deco_calc;
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499 static float starting_depth;
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500 static float last_run_time;
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501 static float deco_phase_volume_time;
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502 static float run_time_start_of_ascent;
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503 static float rate;
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504 static float step_size;
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505 static _Bool vpm_violates_buehlmann;
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506
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507 static void vpm_calc_deco(void)
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508 {
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509 /* System generated locals */
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510
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511 //float deepest_possible_stop_depth;
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512 // altitude_of_dive,
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513 short i;
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514 int j = 0;
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515
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516 // float rounding_operation;
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517
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518 /* =============================================================================== */
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519 /* INPUT PARAMETERS TO BE USED FOR STAGED DECOMPRESSION AND SAVE IN ARRAYS. */
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520 /* ASSIGN INITAL PARAMETERS TO BE USED AT START OF ASCENT */
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521 /* The user has the ability to change mix, ascent rate, and step size in any */
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522 /* combination at any depth during the ascent. */
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523 /* =============================================================================== */
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524
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525 run_time = ((float)pInput->dive_time_seconds )/ 60;
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526 count_critical_volume_iteration = 0;
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527 number_of_changes = 1;
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528
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529 barometric_pressure = pInput->pressure_surface_bar * 10;
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530 depth_change[0] =(pInput->pressure_ambient_bar - pInput->pressure_surface_bar)* 10;
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531 mix_change[0] = 0;
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532 rate_change[0 ] = -10;// neu 160215 hw, zuvor: -12;
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533 step_size_change[0] = 3;
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534 vpm_violates_buehlmann = false;
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535
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536 for (i = 1; i < BUEHLMANN_STRUCT_MAX_GASES; i++)
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537 {
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538 depth_change[i] = 0;
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539 mix_change[i] = 0;
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540 }
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541 j = 0;
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542
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543 for (i = 1; i < BUEHLMANN_STRUCT_MAX_GASES; i++)
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544 {
830
b7d93ff6b3b2 Added selection if an active gas shall be used for deco calculation or not:
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545 if((pDiveSettings->decogaslist[i].change_during_ascent_depth_meter_otherwise_zero >= depth_change[0] + 1)
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546 && (pDiveSettings->gas[pDiveSettings->decogaslist[i].GasIdInSettings].note.ub.decocalc))
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547 continue;
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548
830
b7d93ff6b3b2 Added selection if an active gas shall be used for deco calculation or not:
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549 if((pDiveSettings->decogaslist[i].change_during_ascent_depth_meter_otherwise_zero <= 0)
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550 || (pDiveSettings->gas[pDiveSettings->decogaslist[i].GasIdInSettings].note.ub.decocalc == 0))
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551 break;
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552
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553 j++;
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554 number_of_changes ++;
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555 depth_change[j] = pDiveSettings->decogaslist[i].change_during_ascent_depth_meter_otherwise_zero ;
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556 mix_change[j] = i;
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557 rate_change[j] = -10;// neu 160215 hw, zuvor: -12;
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558 step_size_change[j] = 3;
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559 }
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560
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561 starting_depth = depth_change[0] ;
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562 mix_number = mix_change[0] ;
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563 rate = rate_change[0];
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564 step_size = step_size_change[0];
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565
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566 for (i = 0; i < 16; ++i) {
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567 he_pressure_start_of_ascent[i ] = helium_pressure[i];
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568 n2_pressure_start_of_ascent[i] = nitrogen_pressure[i];
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569 }
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570 run_time_start_of_ascent = run_time;
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571 if(starting_depth <= depth_start_of_deco_zone && vpm_calc_what == DECOSTOPS)
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572 {
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573 pVpm->deco_zone_reached = true;
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574 depth_start_of_deco_calc = starting_depth;
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575 critical_volume_algorithm_off = true;
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576 }
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577 else
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578 {
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579 //if(deco_zone_reached)
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580 //{
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581 pVpm->deco_zone_reached = false;
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582 critical_volume_algorithm_off = false;
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583 //max_first_stop_depth = 0;
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584 //max_first_stop_depth_save = 0;
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585 //}
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586 /* =============================================================================== */
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587 /* BEGIN PROCESS OF ASCENT AND DECOMPRESSION */
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588 /* First, calculate the regeneration of critical radii that takes place over */
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589 /* the dive time. The regeneration time constant has a time scale of weeks */
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590 /* so this will have very little impact on dives of normal length, but will */
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591 /* have major impact for saturation dives. */
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592 /* =============================================================================== */
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593
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594 nuclear_regeneration(&run_time);
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595
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596 /* =============================================================================== */
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597 /* CALCULATE INITIAL ALLOWABLE GRADIENTS FOR ASCENT */
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598 /* This is based on the maximum effective crushing pressure on critical radii */
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599 /* in each compartment achieved during the dive profile. */
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600 /* =============================================================================== */
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601
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602 calc_initial_allowable_gradient();
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603
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604 /* =============================================================================== */
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605 /* SAVE VARIABLES AT START OF ASCENT (END OF BOTTOM TIME) SINCE THESE WILL */
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606 /* BE USED LATER TO COMPUTE THE FINAL ASCENT PROFILE THAT IS WRITTEN TO THE */
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607 /* OUTPUT FILE. */
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608 /* The VPM uses an iterative process to compute decompression schedules so */
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609 /* there will be more than one pass through the decompression loop. */
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610 /* =============================================================================== */
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611
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612 /* =============================================================================== */
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613 /* CALCULATE THE DEPTH WHERE THE DECOMPRESSION ZONE BEGINS FOR THIS PROFILE */
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614 /* BASED ON THE INITIAL ASCENT PARAMETERS AND WRITE THE DEEPEST POSSIBLE */
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615 /* DECOMPRESSION STOP DEPTH TO THE OUTPUT FILE */
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616 /* Knowing where the decompression zone starts is very important. Below */
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617 /* that depth there is no possibility for bubble formation because there */
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618 /* will be no supersaturation gradients. Deco stops should never start */
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619 /* below the deco zone. The deepest possible stop deco stop depth is */
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620 /* defined as the next "standard" stop depth above the point where the */
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621 /* leading compartment enters the deco zone. Thus, the program will not */
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622 /* base this calculation on step sizes larger than 10 fsw or 3 msw. The */
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623 /* deepest possible stop depth is not used in the program, per se, rather */
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624 /* it is information to tell the diver where to start putting on the brakes */
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625 /* during ascent. This should be prominently displayed by any deco program. */
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626 /* =============================================================================== */
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627
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628 calc_start_of_deco_zone(&starting_depth, &rate, &depth_start_of_deco_zone);
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629 /* =============================================================================== */
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630 /* TEMPORARILY ASCEND PROFILE TO THE START OF THE DECOMPRESSION ZONE, SAVE */
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631 /* VARIABLES AT THIS POINT, AND INITIALIZE VARIABLES FOR CRITICAL VOLUME LOOP */
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632 /* The iterative process of the VPM Critical Volume Algorithm will operate */
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633 /* only in the decompression zone since it deals with excess gas volume */
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634 /* released as a result of supersaturation gradients (not possible below the */
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635 /* decompression zone). */
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636 /* =============================================================================== */
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637 gas_loadings_ascent_descen(helium_pressure,nitrogen_pressure, starting_depth, depth_start_of_deco_zone, rate, true);
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638
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639 run_time_start_of_deco_zone = run_time;
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640 depth_start_of_deco_calc = depth_start_of_deco_zone;
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641
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642 for (i = 0; i < 16; ++i)
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643 {
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644 pVpm->max_actual_gradient[i] = 0.;
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645 }
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646 }
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647
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648 for (i = 0; i < 16; ++i)
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649 {
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650 surface_phase_volume_time[i] = 0.;
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651 last_phase_volume_time[i] = 0.;
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652 he_pressure_start_of_deco_zone[i] = helium_pressure[i];
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653 n2_pressure_start_of_deco_zone[i] = nitrogen_pressure[i];
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654 //pVpm->max_actual_gradient[i] = 0.;
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655 }
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656 run_time_start_of_deco_calc = run_time;
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657 }
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658 /* =============================================================================== */
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659 /* START OF CRITICAL VOLUME LOOP */
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660 /* This loop operates between Lines 50 and 100. If the Critical Volume */
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661 /* Algorithm is toggled "off" in the program settings, there will only be */
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parents:
diff changeset
662 /* one pass through this loop. Otherwise, there will be two or more passes */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
663 /* through this loop until the deco schedule is "converged" - that is when a */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
664 /* comparison between the phase volume time of the present iteration and the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
665 /* last iteration is less than or equal to one minute. This implies that */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
666 /* the volume of released gas in the most recent iteration differs from the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
667 /* "critical" volume limit by an acceptably small amount. The critical */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
668 /* volume limit is set by the Critical Volume Parameter Lambda in the program */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
669 /* settings (default setting is 7500 fsw-min with adjustability range from */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
670 /* from 6500 to 8300 fsw-min according to Bruce Wienke). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
671 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
672 /* L50: */
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heinrichsweikamp
parents:
diff changeset
673
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
674 static float deco_stop_depth;
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
675 static int vpm_calc_critcal_volume(_Bool begin,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
676 _Bool calc_nulltime)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
677 { /* loop will run continuous there is an exit stateme */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
678
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
679 short i;
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heinrichsweikamp
parents:
diff changeset
680
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
681 float rounding_operation2;
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heinrichsweikamp
parents:
diff changeset
682 //float ending_depth;
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heinrichsweikamp
parents:
diff changeset
683 float deco_ceiling_depth;
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heinrichsweikamp
parents:
diff changeset
684
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heinrichsweikamp
parents:
diff changeset
685 //float deco_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
686 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
687 _Bool first_stop;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
688 int dp = 0;
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heinrichsweikamp
parents:
diff changeset
689 float tissue_He_saturation[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
690 float tissue_N2_saturation[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
691 float vpm_buehlmann_safety_gradient = 1.0f - (((float)pDiveSettings->vpm_conservatism) / 40);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
692 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
693 /* CALCULATE CURRENT DECO CEILING BASED ON ALLOWABLE SUPERSATURATION */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
694 /* GRADIENTS AND SET FIRST DECO STOP. CHECK TO MAKE SURE THAT SELECTED STEP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
695 /* SIZE WILL NOT ROUND UP FIRST STOP TO A DEPTH THAT IS BELOW THE DECO ZONE. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
696 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
697 if(begin)
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heinrichsweikamp
parents:
diff changeset
698 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
699 if(depth_start_of_deco_calc < max_first_stop_depth )
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
700 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
701 if(vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
702 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
703 BOYLES_LAW_COMPENSATION(&max_first_stop_depth, &depth_start_of_deco_calc, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
704 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
705 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
706 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
707 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
708 calc_deco_ceiling(&deco_ceiling_depth, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
709
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
710
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
711 if (deco_ceiling_depth <= 0.0f) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
712 deco_stop_depth = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
713 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
714 rounding_operation2 = deco_ceiling_depth / step_size + ( float)0.5f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
715 deco_stop_depth = r_nint(&rounding_operation2) * step_size;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
716 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
717
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
718 // buehlmann safety
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
719 if(buehlmannSafety)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
720 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
721 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
722 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
723 tissue_He_saturation[i] = helium_pressure[i] / 10.0;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
724 tissue_N2_saturation[i] = nitrogen_pressure[i] / 10.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
725 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
726
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
727 if(!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_stop_depth / 10.0f) + pInput->pressure_surface_bar))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
728 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
729
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
730 vpm_violates_buehlmann = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
731 do {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
732 deco_stop_depth += 3.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
733 } while (!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_stop_depth / 10.0f) + pInput->pressure_surface_bar));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
734 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
735 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
736
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
737 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
738 /* PERFORM A SEPARATE "PROJECTED ASCENT" OUTSIDE OF THE MAIN PROGRAM TO MAKE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
739 /* SURE THAT AN INCREASE IN GAS LOADINGS DURING ASCENT TO THE FIRST STOP WILL */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
740 /* NOT CAUSE A VIOLATION OF THE DECO CEILING. IF SO, ADJUST THE FIRST STOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
741 /* DEEPER BASED ON STEP SIZE UNTIL A SAFE ASCENT CAN BE MADE. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
742 /* Note: this situation is a possibility when ascending from extremely deep */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
743 /* dives or due to an unusual gas mix selection. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
744 /* CHECK AGAIN TO MAKE SURE THAT ADJUSTED FIRST STOP WILL NOT BE BELOW THE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
745 /* DECO ZONE. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
746 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
747 if (deco_stop_depth < depth_start_of_deco_calc)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
748 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
749 projected_ascent(&depth_start_of_deco_calc, &rate, &deco_stop_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
750 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
751
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
752 /*if (deco_stop_depth > depth_start_of_deco_zone) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
753 printf("\t\n");
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
754 printf(fmt_905);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
755 printf(fmt_900);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
756 printf("\nPROGRAM TERMINATED\n");
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
757 exit(1);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
758 }*/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
759
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
760 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
761 /* HANDLE THE SPECIAL CASE WHEN NO DECO STOPS ARE REQUIRED - ASCENT CAN BE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
762 /* MADE DIRECTLY TO THE SURFACE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
763 /* Write ascent data to output file and exit the Critical Volume Loop. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
764 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
765
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
766 if (deco_stop_depth == 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
767 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
768 if(calc_nulltime)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
769 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
770 return CALC_END;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
771 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
772 if(pVpm->deco_zone_reached)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
773 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
774 for(dp = 0;dp < DECOINFO_STRUCT_MAX_STOPS;dp++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
775 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
776 pDecoInfo->output_stop_length_seconds[dp] = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
777 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
778 pDecoInfo->output_ndl_seconds = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
779 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
780
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
781 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
782 /* exit the critical volume l */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
783 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
784
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
785 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
786 /* ASSIGN VARIABLES FOR ASCENT FROM START OF DECO ZONE TO FIRST STOP. SAVE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
787 /* FIRST STOP DEPTH FOR LATER USE WHEN COMPUTING THE FINAL ASCENT PROFILE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
788 /* =============================================================================== */
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
789 deco_stop_depth = fmaxf(deco_stop_depth,(float)pDiveSettings->last_stop_depth_bar * 10);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
790 starting_depth = depth_start_of_deco_calc;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
791 first_stop_depth = deco_stop_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
792 first_stop = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
793 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
794 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
795 /* DECO STOP LOOP BLOCK WITHIN CRITICAL VOLUME LOOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
796 /* This loop computes a decompression schedule to the surface during each */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
797 /* iteration of the critical volume loop. No output is written from this */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
798 /* loop, rather it computes a schedule from which the in-water portion of the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
799 /* total phase volume time (Deco_Phase_Volume_Time) can be extracted. Also, */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
800 /* the gas loadings computed at the end of this loop are used the subroutine */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
801 /* which computes the out-of-water portion of the total phase volume time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
802 /* (Surface_Phase_Volume_Time) for that schedule. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
803
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
804 /* Note that exit is made from the loop after last ascent is made to a deco */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
805 /* stop depth that is less than or equal to zero. A final deco stop less */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
806 /* than zero can happen when the user makes an odd step size change during */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
807 /* ascent - such as specifying a 5 msw step size change at the 3 msw stop! */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
808 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
809
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
810 while(true) /* loop will run continuous there is an break statement */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
811 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
812 if(starting_depth > deco_stop_depth )
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
813 gas_loadings_ascent_descen(helium_pressure, nitrogen_pressure, starting_depth, deco_stop_depth, rate,first_stop);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
814
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
815 first_stop = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
816 if (deco_stop_depth <= 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
817 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
818 break;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
819 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
820 if (number_of_changes > 1)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
821 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
822 int i1 = number_of_changes;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
823 for (i = 2; i <= i1; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
824 if (depth_change[i - 1] >= deco_stop_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
825 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
826 mix_number = mix_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
827 rate = rate_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
828 step_size = step_size_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
829 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
830 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
831 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
832 if(vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
833 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
834 float fist_stop_depth2 = fmaxf(first_stop_depth,max_first_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
835 BOYLES_LAW_COMPENSATION(&fist_stop_depth2, &deco_stop_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
836 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
837 decompression_stop(&deco_stop_depth, &step_size, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
838 starting_depth = deco_stop_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
839
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
840 if(deco_stop_depth == (float)pDiveSettings->last_stop_depth_bar * 10)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
841 deco_stop_depth = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
842 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
843 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
844 deco_stop_depth = deco_stop_depth - step_size;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
845 deco_stop_depth = fmaxf(deco_stop_depth,(float)pDiveSettings->last_stop_depth_bar * 10);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
846 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
847
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
848 count++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
849 //if(count > 14)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
850 //return CALC_CRITICAL2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
851 /* L60: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
852 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
853
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
854 return vpm_check_converged(calc_nulltime);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
855 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
856 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
857 /* COMPUTE TOTAL PHASE VOLUME TIME AND MAKE CRITICAL VOLUME COMPARISON */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
858 /* The deco phase volume time is computed from the run time. The surface */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
859 /* phase volume time is computed in a subroutine based on the surfacing gas */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
860 /* loadings from previous deco loop block. Next the total phase volume time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
861 /* (in-water + surface) for each compartment is compared against the previous */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
862 /* total phase volume time. The schedule is converged when the difference is */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
863 /* less than or equal to 1 minute in any one of the 16 compartments. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
864
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
865 /* Note: the "phase volume time" is somewhat of a mathematical concept. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
866 /* It is the time divided out of a total integration of supersaturation */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
867 /* gradient x time (in-water and surface). This integration is multiplied */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
868 /* by the excess bubble number to represent the amount of free-gas released */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
869 /* as a result of allowing a certain number of excess bubbles to form. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
870 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
871 /* end of deco stop loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
872
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
873 static int vpm_check_converged(_Bool calc_nulltime)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
874 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
875
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
876 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
877 float critical_volume_comparison;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
878 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
879 _Bool schedule_converged = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
880
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
881
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
882 deco_phase_volume_time = run_time - run_time_start_of_deco_zone;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
883 calc_surface_phase_volume_time();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
884
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
885 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
886 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
887 phase_volume_time[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
888 deco_phase_volume_time + surface_phase_volume_time[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
889 critical_volume_comparison = (r1 = phase_volume_time[i - 1] - last_phase_volume_time[i - 1], fabs(r1));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
890
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
891 if (critical_volume_comparison <= 1.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
892 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
893 schedule_converged = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
894 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
895 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
896
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
897 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
898 /* CRITICAL VOLUME DECISION TREE BETWEEN LINES 70 AND 99 */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
899 /* There are two options here. If the Critical Volume Agorithm setting is */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
900 /* "on" and the schedule is converged, or the Critical Volume Algorithm */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
901 /* setting was "off" in the first place, the program will re-assign variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
902 /* to their values at the start of ascent (end of bottom time) and process */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
903 /* a complete decompression schedule once again using all the same ascent */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
904 /* parameters and first stop depth. This decompression schedule will match */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
905 /* the last iteration of the Critical Volume Loop and the program will write */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
906 /* the final deco schedule to the output file. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
907
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
908 /* Note: if the Critical Volume Agorithm setting was "off", the final deco */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
909 /* schedule will be based on "Initial Allowable Supersaturation Gradients." */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
910 /* If it was "on", the final schedule will be based on "Adjusted Allowable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
911 /* Supersaturation Gradients" (gradients that are "relaxed" as a result of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
912 /* the Critical Volume Algorithm). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
913
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
914 /* If the Critical Volume Agorithm setting is "on" and the schedule is not */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
915 /* converged, the program will re-assign variables to their values at the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
916 /* start of the deco zone and process another trial decompression schedule. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
917 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
918 /* L70: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
919 //Not more than 4 iteration allowed
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
920 count_critical_volume_iteration++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
921 if(count_critical_volume_iteration > 4)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
922 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
923 //return CALC_FINAL_DECO;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
924 if(calc_nulltime)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
925 return CALC_FINAL_DECO;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
926 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
927 return vpm_calc_final_deco(true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
928 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
929 if (schedule_converged || critical_volume_algorithm_off)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
930 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
931
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
932 //return CALC_FINAL_DECO;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
933 if(calc_nulltime)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
934 return CALC_FINAL_DECO;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
935 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
936 return vpm_calc_final_deco(true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
937 /* final deco schedule */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
938 /* exit critical volume l */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
939
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
940 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
941 /* IF SCHEDULE NOT CONVERGED, COMPUTE RELAXED ALLOWABLE SUPERSATURATION */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
942 /* GRADIENTS WITH VPM CRITICAL VOLUME ALGORITHM AND PROCESS ANOTHER */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
943 /* ITERATION OF THE CRITICAL VOLUME LOOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
944 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
945
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
946 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
947 critical_volume(&deco_phase_volume_time);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
948 deco_phase_volume_time = 0.;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
949 run_time = run_time_start_of_deco_calc;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
950 starting_depth = depth_start_of_deco_calc;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
951 mix_number = mix_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
952 rate = rate_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
953 step_size = step_size_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
954 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
955 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
956 last_phase_volume_time[i - 1] = phase_volume_time[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
957 helium_pressure[i - 1] = he_pressure_start_of_deco_zone[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
958 nitrogen_pressure[i - 1] = n2_pressure_start_of_deco_zone[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
959 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
960 if(calc_nulltime)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
961 return CALC_CRITICAL;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
962 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
963 return vpm_calc_critcal_volume(true, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
964 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
965 /* end of critical volume decision */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
966 /* L100: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
967 // }/* end of critical vol loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
968 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
969
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
970 static void vpm_calc_deco_ceiling(void)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
971 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
972
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
973 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
974 // hw 1601209 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
975 // hw 1601209 float stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
976 // hw 1601209 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
977 //static int dp_max;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
978 //static float surfacetime;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
979 // _Bool first_stop = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
980 float tissue_He_saturation[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
981 float tissue_N2_saturation[16];
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
982 float vpm_buehlmann_safety_gradient = 1.0f - (((float)pDiveSettings->vpm_conservatism) / 40);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
983 //max_first_stop_depth = fmaxf(first_stop_depth,max_first_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
984
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
985 /** CALC DECO Ceiling ******************************************************************/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
986 /** Not when Future stops */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
987 if(vpm_calc_what == DECOSTOPS)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
988 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
989
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
990 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
991 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
992 helium_pressure[i - 1] = he_pressure_start_of_deco_zone[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
993 nitrogen_pressure[i - 1] = n2_pressure_start_of_deco_zone[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
994 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
995 run_time = run_time_start_of_ascent;// run_time_start_of_ascent;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
996 starting_depth = depth_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
997 mix_number = mix_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
998 rate = rate_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
999 //gas_loadings_ascent_descen(helium_pressure,nitrogen_pressure, starting_depth, depth_start_of_deco_calc, rate, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1000
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1001 float deco_ceiling_depth = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1002 if(depth_start_of_deco_calc > max_deco_ceiling_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1003 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1004 calc_deco_ceiling(&deco_ceiling_depth, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1005 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1006 if(buehlmannSafety)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1007 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1008 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1009 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1010 tissue_He_saturation[i] = helium_pressure[i] / 10.0;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1011 tissue_N2_saturation[i] = nitrogen_pressure[i] / 10.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1012 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1013
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1014 if(!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_ceiling_depth / 10.0f) + pInput->pressure_surface_bar))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1015 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1016 vpm_violates_buehlmann = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1017 do {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1018 deco_ceiling_depth += 0.1f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1019 } while (!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_ceiling_depth / 10.0f) + pInput->pressure_surface_bar));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1020 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1021 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1022
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1023 if (deco_ceiling_depth < depth_start_of_deco_calc)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1024 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1025 projected_ascent(&depth_start_of_deco_calc, &rate, &deco_ceiling_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1026 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1027
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1028 max_deco_ceiling_depth = fmaxf(max_deco_ceiling_depth,deco_ceiling_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1029
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1030 if(depth_start_of_deco_calc > deco_ceiling_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1031 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1032 gas_loadings_ascent_descen(helium_pressure,nitrogen_pressure, depth_start_of_deco_calc,deco_ceiling_depth, rate, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1033 //surfacetime += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1034 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1035
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1036 if(vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1037 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1038 BOYLES_LAW_COMPENSATION(&max_deco_ceiling_depth, &deco_ceiling_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1039 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1040 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1041
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1042 // buehlmann safety
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1043 if(vpm_violates_buehlmann)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1044 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1045 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1046 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1047 tissue_He_saturation[i] = helium_pressure[i] / 10.0;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1048 tissue_N2_saturation[i] = nitrogen_pressure[i] / 10.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1049 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1050
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1051 if(!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_ceiling_depth / 10.0f) + pInput->pressure_surface_bar))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1052 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1053 vpm_violates_buehlmann = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1054 do {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1055 deco_ceiling_depth += 0.1f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1056 } while (!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_ceiling_depth / 10.0f) + pInput->pressure_surface_bar));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1057 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1058 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1059 // output_ceiling_meter
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1060 if(deco_ceiling_depth > first_stop_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1061 deco_ceiling_depth = first_stop_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1062 pDecoInfo->output_ceiling_meter = deco_ceiling_depth ;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1063 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1064 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1065 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1066 pDecoInfo->output_ceiling_meter = 0.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1067 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1068
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1069 // fix hw 160627
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1070 if(pDecoInfo->output_ceiling_meter < 0.0)
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1071 pDecoInfo->output_ceiling_meter = 0.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1072
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1073 /*** End CALC ceiling ***************************************************/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1074 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1075
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1076
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1077 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1078 /* DECO STOP LOOP BLOCK FOR FINAL DECOMPRESSION SCHEDULE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1079 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1080
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1081 static int vpm_calc_final_deco(_Bool begin)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1082 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1083 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1084 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1085 float stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1086 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1087 static int dp_max;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1088 static float surfacetime;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1089 _Bool first_stop = false;
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1090 float roundingValue = 0.0;
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1091
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1092 uint16_t stop_time_seconds;
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1093
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1094 max_first_stop_depth = fmaxf(first_stop_depth,max_first_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1095 if(begin)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1096 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1097 gCNS_VPM = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1098 dp_max = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1099 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1100 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1101 helium_pressure[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1102 he_pressure_start_of_ascent[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1103 nitrogen_pressure[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1104 n2_pressure_start_of_ascent[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1105 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1106 run_time = run_time_start_of_ascent;// run_time_start_of_ascent;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1107 starting_depth = depth_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1108 mix_number = mix_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1109 rate = rate_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1110 step_size = step_size_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1111 deco_stop_depth = first_stop_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1112 max_first_stop_depth = fmaxf(first_stop_depth,max_first_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1113 last_run_time = 0.;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1114
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1115
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1116
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1117 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1118 /* DECO STOP LOOP BLOCK FOR FINAL DECOMPRESSION SCHEDULE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1119 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1120 surfacetime = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1121 first_stop = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1122 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1123
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1124 while(true) /* loop will run continuous until there is an break statement */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1125 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1126 if(starting_depth > deco_stop_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1127 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1128 gas_loadings_ascent_descen(helium_pressure,nitrogen_pressure, starting_depth,deco_stop_depth, rate, first_stop);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1129 surfacetime += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1130 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1131
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1132 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1133 /* DURING FINAL DECOMPRESSION SCHEDULE PROCESS, COMPUTE MAXIMUM ACTUAL */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1134 /* SUPERSATURATION GRADIENT RESULTING IN EACH COMPARTMENT */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1135 /* If there is a repetitive dive, this will be used later in the VPM */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1136 /* Repetitive Algorithm to adjust the values for critical radii. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1137 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1138 if(vpm_calc_what == DECOSTOPS)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1139 calc_max_actual_gradient(&deco_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1140
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1141 if (deco_stop_depth <= 0.0f) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1142 break;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1143 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1144 if (number_of_changes > 1)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1145 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1146 int i1 = number_of_changes;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1147 for (i = 2; i <= i1; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1148 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1149 if (depth_change[i - 1] >= deco_stop_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1150 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1151 mix_number = mix_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1152 rate = rate_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1153 step_size = step_size_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1154 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1155 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1156 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1157
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1158 if(first_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1159 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1160 run_time_first_stop = run_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1161 first_stop = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1162 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1163 if(vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1164 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1165 BOYLES_LAW_COMPENSATION(&max_first_stop_depth, &deco_stop_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1166 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1167 decompression_stop(&deco_stop_depth, &step_size, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1168
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1169 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1170 /* This next bit justs rounds up the stop time at the first stop to be in */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1171 /* whole increments of the minimum stop time (to make for a nice deco table). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1172 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1173
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1174 if (last_run_time == 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1175 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1176 r1 = segment_time / minimum_deco_stop_time + 0.5f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1177 stop_time = r_int(&r1) * minimum_deco_stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1178 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1179 stop_time = run_time - last_run_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1180 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1181 stop_time = segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1182 surfacetime += stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1183 if((vpm_calc_what == DECOSTOPS) || (vpm_calc_what == BAILOUTSTOPS))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1184 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1185 int dp = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1186 if(deco_stop_depth == (float)pDiveSettings->last_stop_depth_bar * 10)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1187 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1188 dp = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1189 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1190 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1191 {
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1192 roundingValue = (deco_stop_depth - (pDiveSettings->input_second_to_last_stop_depth_bar * 10.0)) / step_size;
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1193 dp = 1 + r_nint(&roundingValue);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1194 }
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1195
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1196 //dp_max = (int)fmaxf(dp_max,dp);
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1197 if(dp > dp_max)
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1198 {
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1199 dp_max = dp;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1200 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1201 if(dp < DECOINFO_STRUCT_MAX_STOPS)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1202 {
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1203 stop_time_seconds = (uint16_t)(fminf((999.9 * 60.0), (stop_time *60.0)));
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1204 //
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1205
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1206 //if(vpm_calc_what == DECOSTOPS)
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1207 pDecoInfo->output_stop_length_seconds[dp] = stop_time_seconds;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1208 //else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1209 //decostop_bailout[dp] = (unsigned short)stop_time_seconds;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1210 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1211 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1212
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1213
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1214 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1215 /* DURING FINAL DECOMPRESSION SCHEDULE, IF MINIMUM STOP TIME PARAMETER IS A */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1216 /* WHOLE NUMBER (i.e. 1 minute) THEN WRITE DECO SCHEDULE USING short */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1217 /* NUMBERS (looks nicer). OTHERWISE, USE DECIMAL NUMBERS. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1218 /* Note: per the request of a noted exploration diver(!), program now allows */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1219 /* a minimum stop time of less than one minute so that total ascent time can */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1220 /* be minimized on very long dives. In fact, with step size set at 1 fsw or */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1221 /* 0.2 msw and minimum stop time set at 0.1 minute (6 seconds), a near */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1222 /* continuous decompression schedule can be computed. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1223 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1224
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1225 starting_depth = deco_stop_depth;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
1226 if(deco_stop_depth == (float)pDiveSettings->last_stop_depth_bar * 10)
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
1227 deco_stop_depth = 0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1228 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1229 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1230 deco_stop_depth = deco_stop_depth - step_size;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
1231 deco_stop_depth = fmaxf(deco_stop_depth,(float)pDiveSettings->last_stop_depth_bar * 10);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1232 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1233
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1234 last_run_time = run_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1235 count++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1236 //if(count > 14)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1237 //return CALC_FINAL_DECO2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1238 /* L80: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1239 } /* for final deco sche */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1240
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1241 if( (vpm_calc_what == DECOSTOPS) || (vpm_calc_what == BAILOUTSTOPS))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1242 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1243 for(int dp = dp_max +1;dp < DECOINFO_STRUCT_MAX_STOPS;dp++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1244 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1245 //if(vpm_calc_what == DECOSTOPS)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1246 pDecoInfo->output_stop_length_seconds[dp] = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1247 //else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1248 //decostop_bailout[dp] = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1249 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1250 }
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1251 pDecoInfo->output_time_to_surface_seconds = (int)(surfacetime * 60.0);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1252 pDecoInfo->output_ndl_seconds = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1253
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1254 vpm_calc_deco_ceiling();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1255 /* end of deco stop lo */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1256 return CALC_END;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1257 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1258
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1259 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1260 /* SUBROUTINE NUCLEAR_REGENERATION */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1261 /* Purpose: This subprogram calculates the regeneration of VPM critical */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1262 /* radii that takes place over the dive time. The regeneration time constant */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1263 /* has a time scale of weeks so this will have very little impact on dives of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1264 /* normal length, but will have a major impact for saturation dives. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1265 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1266
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1267 static int nuclear_regeneration(float *dive_time)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1268 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1269 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1270 float crush_pressure_adjust_ratio_he,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1271 ending_radius_n2,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1272 ending_radius_he;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1273 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1274 float crushing_pressure_pascals_n2,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1275 crushing_pressure_pascals_he,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1276 adj_crush_pressure_n2_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1277 adj_crush_pressure_he_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1278 crush_pressure_adjust_ratio_n2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1279
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1280 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1281 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1282 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1283 /* First convert the maximum crushing pressure obtained for each compartment */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1284 /* to Pascals. Next, compute the ending radius for helium and nitrogen */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1285 /* critical nuclei in each compartment. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1286 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1287
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1288 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1289 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1290 crushing_pressure_pascals_he =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1291 pVpm->max_crushing_pressure_he[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1292 crushing_pressure_pascals_n2 =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1293 pVpm->max_crushing_pressure_n2[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1294 ending_radius_he =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1295 1.0f / (crushing_pressure_pascals_he /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1296 ((SKIN_COMPRESSION_GAMMAC - SURFACE_TENSION_GAMMA) * 2.0f) +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1297 1.0f / pVpm->adjusted_critical_radius_he[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1298 ending_radius_n2 =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1299 1.0f / (crushing_pressure_pascals_n2 /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1300 ((SKIN_COMPRESSION_GAMMAC - SURFACE_TENSION_GAMMA) * 2.0f) +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1301 1.0f / pVpm->adjusted_critical_radius_n2[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1302
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1303 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1304 /* A "regenerated" radius for each nucleus is now calculated based on the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1305 /* regeneration time constant. This means that after application of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1306 /* crushing pressure and reduction in radius, a nucleus will slowly grow */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1307 /* back to its original initial radius over a period of time. This */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1308 /* phenomenon is probabilistic in nature and depends on absolute temperature. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1309 /* It is independent of crushing pressure. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1310 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1311
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1312 regenerated_radius_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1313 pVpm->adjusted_critical_radius_he[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1314 (ending_radius_he - pVpm->adjusted_critical_radius_he[i - 1]) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1315 expf(-(*dive_time) / REGENERATION_TIME_CONSTANT);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1316 regenerated_radius_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1317 pVpm->adjusted_critical_radius_n2[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1318 (ending_radius_n2 - pVpm->adjusted_critical_radius_n2[i - 1]) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1319 expf(-(*dive_time) / REGENERATION_TIME_CONSTANT);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1320
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1321 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1322 /* In order to preserve reference back to the initial critical radii after */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1323 /* regeneration, an "adjusted crushing pressure" for the nuclei in each */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1324 /* compartment must be computed. In other words, this is the value of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1325 /* crushing pressure that would have reduced the original nucleus to the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1326 /* to the present radius had regeneration not taken place. The ratio */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1327 /* for adjusting crushing pressure is obtained from algebraic manipulation */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1328 /* of the standard VPM equations. The adjusted crushing pressure, in lieu */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1329 /* of the original crushing pressure, is then applied in the VPM Critical */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1330 /* Volume Algorithm and the VPM Repetitive Algorithm. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1331 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1332
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1333 crush_pressure_adjust_ratio_he =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1334 ending_radius_he * (pVpm->adjusted_critical_radius_he[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1335 regenerated_radius_he[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1336 (regenerated_radius_he[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1337 (pVpm->adjusted_critical_radius_he[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1338 ending_radius_he));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1339 crush_pressure_adjust_ratio_n2 =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1340 ending_radius_n2 * (pVpm->adjusted_critical_radius_n2[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1341 regenerated_radius_n2[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1342 (regenerated_radius_n2[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1343 (pVpm->adjusted_critical_radius_n2[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1344 ending_radius_n2));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1345 adj_crush_pressure_he_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1346 crushing_pressure_pascals_he * crush_pressure_adjust_ratio_he;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1347 adj_crush_pressure_n2_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1348 crushing_pressure_pascals_n2 * crush_pressure_adjust_ratio_n2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1349 pVpm->adjusted_crushing_pressure_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1350 adj_crush_pressure_he_pascals / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1351 pVpm->adjusted_crushing_pressure_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1352 adj_crush_pressure_n2_pascals / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1353 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1354 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1355 } /* nuclear_regeneration */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1356
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1357 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1358 /* SUBROUTINE CALC_INITIAL_ALLOWABLE_GRADIENT */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1359 /* Purpose: This subprogram calculates the initial allowable gradients for */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1360 /* helium and nitrogren in each compartment. These are the gradients that */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1361 /* will be used to set the deco ceiling on the first pass through the deco */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1362 /* loop. If the Critical Volume Algorithm is set to "off", then these */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1363 /* gradients will determine the final deco schedule. Otherwise, if the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1364 /* Critical Volume Algorithm is set to "on", these gradients will be further */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1365 /* "relaxed" by the Critical Volume Algorithm subroutine. The initial */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1366 /* allowable gradients are referred to as "PssMin" in the papers by Yount */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1367 /* and colleauges, i.e., the minimum supersaturation pressure gradients */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1368 /* that will probe bubble formation in the VPM nuclei that started with the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1369 /* designated minimum initial radius (critical radius). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1370
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1371 /* The initial allowable gradients are computed directly from the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1372 /* "regenerated" radii after the Nuclear Regeneration subroutine. These */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1373 /* gradients are tracked separately for helium and nitrogen. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1374 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1375
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1376 static int calc_initial_allowable_gradient()
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1377 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1378 float initial_allowable_grad_n2_pa,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1379 initial_allowable_grad_he_pa;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1380 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1381
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1382 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1383 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1384 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1385 /* The initial allowable gradients are computed in Pascals and then converted */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1386 /* to the diving pressure units. Two different sets of arrays are used to */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1387 /* save the calculations - Initial Allowable Gradients and Allowable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1388 /* Gradients. The Allowable Gradients are assigned the values from Initial */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1389 /* Allowable Gradients however the Allowable Gradients can be changed later */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1390 /* by the Critical Volume subroutine. The values for the Initial Allowable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1391 /* Gradients are saved in a global array for later use by both the Critical */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1392 /* Volume subroutine and the VPM Repetitive Algorithm subroutine. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1393 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1394
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1395 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1396 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1397 initial_allowable_grad_n2_pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1398 SURFACE_TENSION_GAMMA * 2.0f *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1399 (SKIN_COMPRESSION_GAMMAC - SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1400 (regenerated_radius_n2[i - 1] * SKIN_COMPRESSION_GAMMAC);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1401
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1402 initial_allowable_grad_he_pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1403 SURFACE_TENSION_GAMMA * 2.0f *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1404 (SKIN_COMPRESSION_GAMMAC - SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1405 (regenerated_radius_he[i - 1] * SKIN_COMPRESSION_GAMMAC);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1406
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1407 pVpm->initial_allowable_gradient_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1408 initial_allowable_grad_n2_pa / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1409
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1410 pVpm->initial_allowable_gradient_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1411 initial_allowable_grad_he_pa / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1412
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1413 allowable_gradient_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1414 pVpm->initial_allowable_gradient_he[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1415
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1416 allowable_gradient_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1417 pVpm->initial_allowable_gradient_n2[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1418 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1419 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1420 } /* calc_initial_allowable_gradient */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1421
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1422 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1423 /* SUBROUTINE CALC_DECO_CEILING */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1424 /* Purpose: This subprogram calculates the deco ceiling (the safe ascent */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1425 /* depth) in each compartment, based on the allowable gradients, and then */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1426 /* finds the deepest deco ceiling across all compartments. This deepest */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1427 /* value (Deco Ceiling Depth) is then used by the Decompression Stop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1428 /* subroutine to determine the actual deco schedule. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1429 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1430
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1431 static int calc_deco_ceiling(float *deco_ceiling_depth,_Bool fallowable)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1432 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1433 /* System generated locals */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1434 float r1, r2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1435 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1436 float weighted_allowable_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1437 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1438 float compartment_deco_ceiling[16],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1439 gas_loading,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1440 tolerated_ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1441 float gradient_he, gradient_n2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1442
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1443 if(!vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1444 fallowable = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1445 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1446 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1447 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1448 /* Since there are two sets of allowable gradients being tracked, one for */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1449 /* helium and one for nitrogen, a "weighted allowable gradient" must be */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1450 /* computed each time based on the proportions of helium and nitrogen in */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1451 /* each compartment. This proportioning follows the methodology of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1452 /* Buhlmann/Keller. If there is no helium and nitrogen in the compartment, */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1453 /* such as after extended periods of oxygen breathing, then the minimum value */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1454 /* across both gases will be used. It is important to note that if a */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1455 /* compartment is empty of helium and nitrogen, then the weighted allowable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1456 /* gradient formula cannot be used since it will result in division by zero. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1457 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1458
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1459 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1460 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1461
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1462 // abfrage raus und pointer stattdessen
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1463 if(fallowable){
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1464 gradient_he = allowable_gradient_he[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1465 gradient_n2 = allowable_gradient_n2[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1466 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1467 else{
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1468 gradient_he = deco_gradient_he[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1469 gradient_n2 = deco_gradient_n2[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1470 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1471
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1472 gas_loading = helium_pressure[i - 1] + nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1473
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1474 if (gas_loading > 0)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1475 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1476 weighted_allowable_gradient =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1477 (gradient_he * helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1478 gradient_n2 * nitrogen_pressure[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1479 (helium_pressure[i - 1] + nitrogen_pressure[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1480
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1481 tolerated_ambient_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1482 gas_loading +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1483 CONSTANT_PRESSURE_OTHER_GASES -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1484 weighted_allowable_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1485 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1486 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1487 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1488 /* Computing MIN */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1489 r1 = gradient_he;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1490 r2 = gradient_n2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1491 weighted_allowable_gradient = fminf(r1,r2);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1492
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1493 tolerated_ambient_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1494 CONSTANT_PRESSURE_OTHER_GASES - weighted_allowable_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1495 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1496
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1497 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1498 /* The tolerated ambient pressure cannot be less than zero absolute, i.e., */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1499 /* the vacuum of outer space! */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1500 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1501
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1502 if (tolerated_ambient_pressure < 0.0) {
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1503 tolerated_ambient_pressure = 0.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1504 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1505 compartment_deco_ceiling[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1506 tolerated_ambient_pressure - barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1507 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1508
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1509 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1510 /* The Deco Ceiling Depth is computed in a loop after all of the individual */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1511 /* compartment deco ceilings have been calculated. It is important that the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1512 /* Deco Ceiling Depth (max deco ceiling across all compartments) only be */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1513 /* extracted from the compartment values and not be compared against some */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1514 /* initialization value. For example, if MAX(Deco_Ceiling_Depth . .) was */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1515 /* compared against zero, this could cause a program lockup because sometimes */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1516 /* the Deco Ceiling Depth needs to be negative (but not less than zero */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1517 /* absolute ambient pressure) in order to decompress to the last stop at zero */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1518 /* depth. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1519 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1520
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1521 *deco_ceiling_depth = compartment_deco_ceiling[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1522 for (i = 2; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1523 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1524 /* Computing MAX */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1525 r1 = *deco_ceiling_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1526 r2 = compartment_deco_ceiling[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1527 *deco_ceiling_depth = fmaxf(r1,r2);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1528 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1529 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1530 } /* calc_deco_ceiling */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1531
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1532
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1533
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1534 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1535 /* SUBROUTINE CALC_MAX_ACTUAL_GRADIENT */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1536 /* Purpose: This subprogram calculates the actual supersaturation gradient */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1537 /* obtained in each compartment as a result of the ascent profile during */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1538 /* decompression. Similar to the concept with crushing pressure, the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1539 /* supersaturation gradients are not cumulative over a multi-level, staged */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1540 /* ascent. Rather, it will be the maximum value obtained in any one discrete */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1541 /* step of the overall ascent. Thus, the program must compute and store the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1542 /* maximum actual gradient for each compartment that was obtained across all */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1543 /* steps of the ascent profile. This subroutine is invoked on the last pass */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1544 /* through the deco stop loop block when the final deco schedule is being */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1545 /* generated. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1546 /* */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1547 /* The max actual gradients are later used by the VPM Repetitive Algorithm to */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1548 /* determine if adjustments to the critical radii are required. If the max */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1549 /* actual gradient did not exceed the initial alllowable gradient, then no */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1550 /* adjustment will be made. However, if the max actual gradient did exceed */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1551 /* the intitial allowable gradient, such as permitted by the Critical Volume */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1552 /* Algorithm, then the critical radius will be adjusted (made larger) on the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1553 /* repetitive dive to compensate for the bubbling that was allowed on the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1554 /* previous dive. The use of the max actual gradients is intended to prevent */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1555 /* the repetitive algorithm from being overly conservative. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1556 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1557
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1558 static int calc_max_actual_gradient(float *deco_stop_depth)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1559 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1560 /* System generated locals */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1561 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1562
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1563 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1564 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1565 float compartment_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1566
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1567 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1568 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1569 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1570 /* Note: negative supersaturation gradients are meaningless for this */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1571 /* application, so the values must be equal to or greater than zero. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1572 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1573
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1574 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1575 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1576 compartment_gradient =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1577 helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1578 nitrogen_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1579 CONSTANT_PRESSURE_OTHER_GASES -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1580 (*deco_stop_depth + barometric_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1581 if (compartment_gradient <= 0.0f) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1582 compartment_gradient = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1583 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1584 /* Computing MAX */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1585 r1 = pVpm->max_actual_gradient[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1586 pVpm->max_actual_gradient[i - 1] = fmaxf(r1, compartment_gradient);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1587 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1588 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1589 } /* calc_max_actual_gradient */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1590
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1591 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1592 /* SUBROUTINE CALC_SURFACE_PHASE_VOLUME_TIME */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1593 /* Purpose: This subprogram computes the surface portion of the total phase */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1594 /* volume time. This is the time factored out of the integration of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1595 /* supersaturation gradient x time over the surface interval. The VPM */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1596 /* considers the gradients that allow bubbles to form or to drive bubble */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1597 /* growth both in the water and on the surface after the dive. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1598
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1599 /* This subroutine is a new development to the VPM algorithm in that it */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1600 /* computes the time course of supersaturation gradients on the surface */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1601 /* when both helium and nitrogen are present. Refer to separate write-up */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1602 /* for a more detailed explanation of this algorithm. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1603 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1604
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1605 static int calc_surface_phase_volume_time()
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1606 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1607 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1608 float decay_time_to_zero_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1609 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1610 float integral_gradient_x_time,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1611 surface_inspired_n2_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1612
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1613 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1614 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1615 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1616 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1617
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1618 surface_inspired_n2_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1619 (barometric_pressure - WATER_VAPOR_PRESSURE) * 0.79f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1620 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1621 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1622 if (nitrogen_pressure[i - 1] > surface_inspired_n2_pressure)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1623 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1624 surface_phase_volume_time[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1625 (helium_pressure[i - 1] / HELIUM_TIME_CONSTANT[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1626 (nitrogen_pressure[i - 1] - surface_inspired_n2_pressure) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1627 NITROGEN_TIME_CONSTANT[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1628 (helium_pressure[i - 1] + nitrogen_pressure[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1629 surface_inspired_n2_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1630 } else if (nitrogen_pressure[i - 1] <= surface_inspired_n2_pressure &&
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1631 helium_pressure[i - 1] + nitrogen_pressure[i - 1] >= surface_inspired_n2_pressure)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1632 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1633 decay_time_to_zero_gradient =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1634 1.0f / (NITROGEN_TIME_CONSTANT[i - 1] - HELIUM_TIME_CONSTANT[i - 1]) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1635 log((surface_inspired_n2_pressure - nitrogen_pressure[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1636 helium_pressure[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1637 integral_gradient_x_time =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1638 helium_pressure[i - 1] /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1639 HELIUM_TIME_CONSTANT[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1640 (1.0f - expf(-HELIUM_TIME_CONSTANT[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1641 decay_time_to_zero_gradient)) +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1642 (nitrogen_pressure[i - 1] - surface_inspired_n2_pressure) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1643 NITROGEN_TIME_CONSTANT[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1644 (1.0f - expf(-NITROGEN_TIME_CONSTANT[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1645 decay_time_to_zero_gradient));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1646 surface_phase_volume_time[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1647 integral_gradient_x_time /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1648 (helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1649 nitrogen_pressure[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1650 surface_inspired_n2_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1651 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1652 surface_phase_volume_time[i - 1] = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1653 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1654 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1655 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1656 } /* calc_surface_phase_volume_time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1657
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1658 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1659 /* SUBROUTINE CRITICAL_VOLUME */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1660 /* Purpose: This subprogram applies the VPM Critical Volume Algorithm. This */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1661 /* algorithm will compute "relaxed" gradients for helium and nitrogen based */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1662 /* on the setting of the Critical Volume Parameter Lambda. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1663 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1664
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1665 static int critical_volume(float *deco_phase_volume_time)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1666 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1667 /* System generated locals */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1668 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1669
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1670 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1671 float initial_allowable_grad_n2_pa,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1672 initial_allowable_grad_he_pa,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1673 parameter_lambda_pascals, b,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1674 c;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1675 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1676 float new_allowable_grad_n2_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1677 phase_volume_time[16],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1678 new_allowable_grad_he_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1679 adj_crush_pressure_n2_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1680 adj_crush_pressure_he_pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1681
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1682 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1683 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1684 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1685 /* Note: Since the Critical Volume Parameter Lambda was defined in units of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1686 /* fsw-min in the original papers by Yount and colleauges, the same */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1687 /* convention is retained here. Although Lambda is adjustable only in units */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1688 /* of fsw-min in the program settings (range from 6500 to 8300 with default */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1689 /* 7500), it will convert to the proper value in Pascals-min in this */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1690 /* subroutine regardless of which diving pressure units are being used in */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1691 /* the main program - feet of seawater (fsw) or meters of seawater (msw). */
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heinrichsweikamp
parents:
diff changeset
1692 /* The allowable gradient is computed using the quadratic formula (refer to */
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heinrichsweikamp
parents:
diff changeset
1693 /* separate write-up posted on the Deco List web site). */
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heinrichsweikamp
parents:
diff changeset
1694 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1695
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heinrichsweikamp
parents:
diff changeset
1696 /**
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heinrichsweikamp
parents:
diff changeset
1697 ******************************************************************************
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heinrichsweikamp
parents:
diff changeset
1698 * @brief critical_volume comment by hw
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heinrichsweikamp
parents:
diff changeset
1699 * @version V0.0.1
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heinrichsweikamp
parents:
diff changeset
1700 * @date 19-April-2014
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heinrichsweikamp
parents:
diff changeset
1701 * @retval global: allowable_gradient_he[i], allowable_gradient_n2[i]
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heinrichsweikamp
parents:
diff changeset
1702 ******************************************************************************
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heinrichsweikamp
parents:
diff changeset
1703 */
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heinrichsweikamp
parents:
diff changeset
1704
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heinrichsweikamp
parents:
diff changeset
1705 parameter_lambda_pascals =
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heinrichsweikamp
parents:
diff changeset
1706 CRIT_VOLUME_PARAMETER_LAMBDA / 33.0f * 101325.0f;
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heinrichsweikamp
parents:
diff changeset
1707 for (i = 1; i <= 16; ++i)
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heinrichsweikamp
parents:
diff changeset
1708 {
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heinrichsweikamp
parents:
diff changeset
1709 phase_volume_time[i - 1] =
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heinrichsweikamp
parents:
diff changeset
1710 *deco_phase_volume_time + surface_phase_volume_time[i - 1];
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heinrichsweikamp
parents:
diff changeset
1711 }
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heinrichsweikamp
parents:
diff changeset
1712 for (i = 1; i <= 16; ++i)
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heinrichsweikamp
parents:
diff changeset
1713 {
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heinrichsweikamp
parents:
diff changeset
1714
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heinrichsweikamp
parents:
diff changeset
1715 adj_crush_pressure_he_pascals =
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heinrichsweikamp
parents:
diff changeset
1716 pVpm->adjusted_crushing_pressure_he[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1717
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heinrichsweikamp
parents:
diff changeset
1718 initial_allowable_grad_he_pa =
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heinrichsweikamp
parents:
diff changeset
1719 pVpm->initial_allowable_gradient_he[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1720
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heinrichsweikamp
parents:
diff changeset
1721 b = initial_allowable_grad_he_pa + parameter_lambda_pascals *
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heinrichsweikamp
parents:
diff changeset
1722 SURFACE_TENSION_GAMMA / (
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heinrichsweikamp
parents:
diff changeset
1723 SKIN_COMPRESSION_GAMMAC * phase_volume_time[i - 1]);
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heinrichsweikamp
parents:
diff changeset
1724
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heinrichsweikamp
parents:
diff changeset
1725 c = SURFACE_TENSION_GAMMA * (
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heinrichsweikamp
parents:
diff changeset
1726 SURFACE_TENSION_GAMMA * (
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heinrichsweikamp
parents:
diff changeset
1727 parameter_lambda_pascals * adj_crush_pressure_he_pascals)) /
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heinrichsweikamp
parents:
diff changeset
1728 (SKIN_COMPRESSION_GAMMAC *
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heinrichsweikamp
parents:
diff changeset
1729 (SKIN_COMPRESSION_GAMMAC * phase_volume_time[i - 1]));
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heinrichsweikamp
parents:
diff changeset
1730 /* Computing 2nd power */
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heinrichsweikamp
parents:
diff changeset
1731
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heinrichsweikamp
parents:
diff changeset
1732 r1 = b;
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heinrichsweikamp
parents:
diff changeset
1733
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heinrichsweikamp
parents:
diff changeset
1734 new_allowable_grad_he_pascals =
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heinrichsweikamp
parents:
diff changeset
1735 (b + sqrtf(r1 * r1 - c * 4.0f)) / 2.0f;
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heinrichsweikamp
parents:
diff changeset
1736
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heinrichsweikamp
parents:
diff changeset
1737 /* modify global variable */
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heinrichsweikamp
parents:
diff changeset
1738 allowable_gradient_he[i - 1] =
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heinrichsweikamp
parents:
diff changeset
1739 new_allowable_grad_he_pascals / 101325.0f * UNITS_FACTOR;
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heinrichsweikamp
parents:
diff changeset
1740 }
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heinrichsweikamp
parents:
diff changeset
1741
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heinrichsweikamp
parents:
diff changeset
1742 for (i = 1; i <= 16; ++i)
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heinrichsweikamp
parents:
diff changeset
1743 {
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heinrichsweikamp
parents:
diff changeset
1744 adj_crush_pressure_n2_pascals =
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heinrichsweikamp
parents:
diff changeset
1745 pVpm->adjusted_crushing_pressure_n2[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1746
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heinrichsweikamp
parents:
diff changeset
1747 initial_allowable_grad_n2_pa =
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heinrichsweikamp
parents:
diff changeset
1748 pVpm->initial_allowable_gradient_n2[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1749
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heinrichsweikamp
parents:
diff changeset
1750 b = initial_allowable_grad_n2_pa + parameter_lambda_pascals *
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heinrichsweikamp
parents:
diff changeset
1751 SURFACE_TENSION_GAMMA / (
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heinrichsweikamp
parents:
diff changeset
1752 SKIN_COMPRESSION_GAMMAC * phase_volume_time[i - 1]);
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heinrichsweikamp
parents:
diff changeset
1753
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heinrichsweikamp
parents:
diff changeset
1754 c = SURFACE_TENSION_GAMMA *
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heinrichsweikamp
parents:
diff changeset
1755 (SURFACE_TENSION_GAMMA *
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heinrichsweikamp
parents:
diff changeset
1756 (parameter_lambda_pascals * adj_crush_pressure_n2_pascals)) /
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heinrichsweikamp
parents:
diff changeset
1757 (SKIN_COMPRESSION_GAMMAC *
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heinrichsweikamp
parents:
diff changeset
1758 (SKIN_COMPRESSION_GAMMAC * phase_volume_time[i - 1]));
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heinrichsweikamp
parents:
diff changeset
1759 /* Computing 2nd power */
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heinrichsweikamp
parents:
diff changeset
1760
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heinrichsweikamp
parents:
diff changeset
1761 r1 = b;
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heinrichsweikamp
parents:
diff changeset
1762
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parents:
diff changeset
1763 new_allowable_grad_n2_pascals =
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heinrichsweikamp
parents:
diff changeset
1764 (b + sqrtf(r1 * r1 - c * 4.0f)) / 2.0f;
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heinrichsweikamp
parents:
diff changeset
1765
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heinrichsweikamp
parents:
diff changeset
1766 /* modify global variable */
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heinrichsweikamp
parents:
diff changeset
1767 allowable_gradient_n2[i - 1] =
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heinrichsweikamp
parents:
diff changeset
1768 new_allowable_grad_n2_pascals / 101325.0f * UNITS_FACTOR;
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heinrichsweikamp
parents:
diff changeset
1769 }
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heinrichsweikamp
parents:
diff changeset
1770 return 0;
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heinrichsweikamp
parents:
diff changeset
1771 } /* critical_volume */
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heinrichsweikamp
parents:
diff changeset
1772
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heinrichsweikamp
parents:
diff changeset
1773 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1774 /* SUBROUTINE CALC_START_OF_DECO_ZONE */
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heinrichsweikamp
parents:
diff changeset
1775 /* Purpose: This subroutine uses the Bisection Method to find the depth at */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1776 /* which the leading compartment just enters the decompression zone. */
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heinrichsweikamp
parents:
diff changeset
1777 /* Source: "Numerical Recipes in Fortran 77", Cambridge University Press, */
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heinrichsweikamp
parents:
diff changeset
1778 /* 1992. */
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heinrichsweikamp
parents:
diff changeset
1779 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1780
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1781 static int calc_start_of_deco_zone(float *starting_depth,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1782 float *rate,
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heinrichsweikamp
parents:
diff changeset
1783 float *depth_start_of_deco_zone)
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heinrichsweikamp
parents:
diff changeset
1784 {
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heinrichsweikamp
parents:
diff changeset
1785 /* Local variables */
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heinrichsweikamp
parents:
diff changeset
1786 float last_diff_change,
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heinrichsweikamp
parents:
diff changeset
1787 initial_helium_pressure,
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heinrichsweikamp
parents:
diff changeset
1788 mid_range_nitrogen_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1789 short i, j;
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heinrichsweikamp
parents:
diff changeset
1790 float initial_inspired_n2_pressure,
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heinrichsweikamp
parents:
diff changeset
1791 cpt_depth_start_of_deco_zone,
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heinrichsweikamp
parents:
diff changeset
1792 low_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1793 initial_inspired_he_pressure,
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heinrichsweikamp
parents:
diff changeset
1794 high_bound_nitrogen_pressure,
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heinrichsweikamp
parents:
diff changeset
1795 nitrogen_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1796 function_at_mid_range,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1797 function_at_low_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1798 high_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1799 mid_range_helium_pressure,
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heinrichsweikamp
parents:
diff changeset
1800 mid_range_time,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1801 starting_ambient_pressure,
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heinrichsweikamp
parents:
diff changeset
1802 initial_nitrogen_pressure,
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heinrichsweikamp
parents:
diff changeset
1803 function_at_high_bound;
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heinrichsweikamp
parents:
diff changeset
1804
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heinrichsweikamp
parents:
diff changeset
1805 float time_to_start_of_deco_zone,
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heinrichsweikamp
parents:
diff changeset
1806 high_bound_helium_pressure,
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heinrichsweikamp
parents:
diff changeset
1807 helium_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1808 differential_change;
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heinrichsweikamp
parents:
diff changeset
1809 float fraction_helium_begin;
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heinrichsweikamp
parents:
diff changeset
1810 float fraction_helium_end;
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heinrichsweikamp
parents:
diff changeset
1811 float fraction_nitrogen_begin;
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heinrichsweikamp
parents:
diff changeset
1812 float fraction_nitrogen_end;
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heinrichsweikamp
parents:
diff changeset
1813 float ending_ambient_pressure;
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heinrichsweikamp
parents:
diff changeset
1814 float time_test;
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heinrichsweikamp
parents:
diff changeset
1815
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heinrichsweikamp
parents:
diff changeset
1816
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heinrichsweikamp
parents:
diff changeset
1817 /* loop */
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heinrichsweikamp
parents:
diff changeset
1818 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1819 /* CALCULATIONS */
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heinrichsweikamp
parents:
diff changeset
1820 /* First initialize some variables */
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heinrichsweikamp
parents:
diff changeset
1821 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1822
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heinrichsweikamp
parents:
diff changeset
1823 *depth_start_of_deco_zone = 0.0f;
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heinrichsweikamp
parents:
diff changeset
1824 starting_ambient_pressure = *starting_depth + barometric_pressure;
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heinrichsweikamp
parents:
diff changeset
1825
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heinrichsweikamp
parents:
diff changeset
1826 //>>>>>>>>>>>>>>>>>>>>
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heinrichsweikamp
parents:
diff changeset
1827 //Test depth to calculate helium_rate and nitrogen_rate
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1828 ending_ambient_pressure = starting_ambient_pressure/2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1829
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heinrichsweikamp
parents:
diff changeset
1830 time_test = (ending_ambient_pressure - starting_ambient_pressure) / *rate;
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1831 decom_get_inert_gases(starting_ambient_pressure / 10.0, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_begin, &fraction_helium_begin );
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1832 decom_get_inert_gases(ending_ambient_pressure / 10.0, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_end, &fraction_helium_end );
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1833 initial_inspired_he_pressure = (starting_ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1834 initial_inspired_n2_pressure = (starting_ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1835 helium_rate = ((ending_ambient_pressure - WATER_VAPOR_PRESSURE)* fraction_helium_end - initial_inspired_he_pressure)/time_test;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1836 nitrogen_rate = ((ending_ambient_pressure - WATER_VAPOR_PRESSURE)* fraction_nitrogen_end - initial_inspired_n2_pressure)/time_test;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1837 //>>>>>>>>>>>>>>>>>>>>>
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heinrichsweikamp
parents:
diff changeset
1838 /*initial_inspired_he_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1839 (starting_ambient_pressure - water_vapor_pressure) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1840 fraction_helium[mix_number - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1841 initial_inspired_n2_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1842 (starting_ambient_pressure - water_vapor_pressure) *
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heinrichsweikamp
parents:
diff changeset
1843 fraction_nitrogen[mix_number - 1];
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heinrichsweikamp
parents:
diff changeset
1844 helium_rate = *rate * fraction_helium[mix_number - 1];
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heinrichsweikamp
parents:
diff changeset
1845 nitrogen_rate = *rate * fraction_nitrogen[mix_number - 1];*/
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heinrichsweikamp
parents:
diff changeset
1846
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heinrichsweikamp
parents:
diff changeset
1847 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1848 /* ESTABLISH THE BOUNDS FOR THE ROOT SEARCH USING THE BISECTION METHOD */
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heinrichsweikamp
parents:
diff changeset
1849 /* AND CHECK TO MAKE SURE THAT THE ROOT WILL BE WITHIN BOUNDS. PROCESS */
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heinrichsweikamp
parents:
diff changeset
1850 /* EACH COMPARTMENT INDIVIDUALLY AND FIND THE MAXIMUM DEPTH ACROSS ALL */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1851 /* COMPARTMENTS (LEADING COMPARTMENT) */
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heinrichsweikamp
parents:
diff changeset
1852 /* In this case, we are solving for time - the time when the gas tension in */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1853 /* the compartment will be equal to ambient pressure. The low bound for time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1854 /* is set at zero and the high bound is set at the time it would take to */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1855 /* ascend to zero ambient pressure (absolute). Since the ascent rate is */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1856 /* negative, a multiplier of -1.0 is used to make the time positive. The */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1857 /* desired point when gas tension equals ambient pressure is found at a time */
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heinrichsweikamp
parents:
diff changeset
1858 /* somewhere between these endpoints. The algorithm checks to make sure that */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1859 /* the solution lies in between these bounds by first computing the low bound */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1860 /* and high bound function values. */
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heinrichsweikamp
parents:
diff changeset
1861 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1862
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1863 low_bound = 0.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1864 high_bound = starting_ambient_pressure / *rate * -1.0f;
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heinrichsweikamp
parents:
diff changeset
1865 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1866 {
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heinrichsweikamp
parents:
diff changeset
1867 initial_helium_pressure = helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1868 initial_nitrogen_pressure = nitrogen_pressure[i - 1];
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heinrichsweikamp
parents:
diff changeset
1869 function_at_low_bound =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1870 initial_helium_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1871 initial_nitrogen_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1872 CONSTANT_PRESSURE_OTHER_GASES -
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heinrichsweikamp
parents:
diff changeset
1873 starting_ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1874 high_bound_helium_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1875 schreiner_equation__2(&initial_inspired_he_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1876 &helium_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1877 &high_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1878 &HELIUM_TIME_CONSTANT[i - 1],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1879 &initial_helium_pressure);
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heinrichsweikamp
parents:
diff changeset
1880 high_bound_nitrogen_pressure =
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heinrichsweikamp
parents:
diff changeset
1881 schreiner_equation__2(&initial_inspired_n2_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1882 &nitrogen_rate,
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heinrichsweikamp
parents:
diff changeset
1883 &high_bound,
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heinrichsweikamp
parents:
diff changeset
1884 &NITROGEN_TIME_CONSTANT[i - 1],
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heinrichsweikamp
parents:
diff changeset
1885 &initial_nitrogen_pressure);
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heinrichsweikamp
parents:
diff changeset
1886 function_at_high_bound = high_bound_helium_pressure +
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heinrichsweikamp
parents:
diff changeset
1887 high_bound_nitrogen_pressure +
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heinrichsweikamp
parents:
diff changeset
1888 CONSTANT_PRESSURE_OTHER_GASES;
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heinrichsweikamp
parents:
diff changeset
1889 if (function_at_high_bound * function_at_low_bound >= 0.0f)
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heinrichsweikamp
parents:
diff changeset
1890 {
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heinrichsweikamp
parents:
diff changeset
1891 printf("\nERROR! ROOT IS NOT WITHIN BRACKETS");
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heinrichsweikamp
parents:
diff changeset
1892 }
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heinrichsweikamp
parents:
diff changeset
1893
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heinrichsweikamp
parents:
diff changeset
1894 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1895 /* APPLY THE BISECTION METHOD IN SEVERAL ITERATIONS UNTIL A SOLUTION WITH */
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heinrichsweikamp
parents:
diff changeset
1896 /* THE DESIRED ACCURACY IS FOUND */
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heinrichsweikamp
parents:
diff changeset
1897 /* Note: the program allows for up to 100 iterations. Normally an exit will */
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heinrichsweikamp
parents:
diff changeset
1898 /* be made from the loop well before that number. If, for some reason, the */
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heinrichsweikamp
parents:
diff changeset
1899 /* program exceeds 100 iterations, there will be a pause to alert the user. */
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heinrichsweikamp
parents:
diff changeset
1900 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1901
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heinrichsweikamp
parents:
diff changeset
1902 if (function_at_low_bound < 0.0f)
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heinrichsweikamp
parents:
diff changeset
1903 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1904 time_to_start_of_deco_zone = low_bound;
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heinrichsweikamp
parents:
diff changeset
1905 differential_change = high_bound - low_bound;
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heinrichsweikamp
parents:
diff changeset
1906 } else {
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heinrichsweikamp
parents:
diff changeset
1907 time_to_start_of_deco_zone = high_bound;
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heinrichsweikamp
parents:
diff changeset
1908 differential_change = low_bound - high_bound;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1909 }
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heinrichsweikamp
parents:
diff changeset
1910 for (j = 1; j <= 100; ++j)
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heinrichsweikamp
parents:
diff changeset
1911 {
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heinrichsweikamp
parents:
diff changeset
1912 last_diff_change = differential_change;
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heinrichsweikamp
parents:
diff changeset
1913 differential_change = last_diff_change * 0.5f;
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heinrichsweikamp
parents:
diff changeset
1914 mid_range_time =
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heinrichsweikamp
parents:
diff changeset
1915 time_to_start_of_deco_zone +
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heinrichsweikamp
parents:
diff changeset
1916 differential_change;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1917 mid_range_helium_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1918 schreiner_equation__2(&initial_inspired_he_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1919 &helium_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1920 &mid_range_time,
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heinrichsweikamp
parents:
diff changeset
1921 &HELIUM_TIME_CONSTANT[i - 1],
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heinrichsweikamp
parents:
diff changeset
1922 &initial_helium_pressure);
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heinrichsweikamp
parents:
diff changeset
1923 mid_range_nitrogen_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1924 schreiner_equation__2(&initial_inspired_n2_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1925 &nitrogen_rate,
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heinrichsweikamp
parents:
diff changeset
1926 &mid_range_time,
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heinrichsweikamp
parents:
diff changeset
1927 &NITROGEN_TIME_CONSTANT[i - 1],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1928 &initial_nitrogen_pressure);
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heinrichsweikamp
parents:
diff changeset
1929 function_at_mid_range =
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heinrichsweikamp
parents:
diff changeset
1930 mid_range_helium_pressure +
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heinrichsweikamp
parents:
diff changeset
1931 mid_range_nitrogen_pressure +
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heinrichsweikamp
parents:
diff changeset
1932 CONSTANT_PRESSURE_OTHER_GASES -
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heinrichsweikamp
parents:
diff changeset
1933 (starting_ambient_pressure + *rate * mid_range_time);
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heinrichsweikamp
parents:
diff changeset
1934 if (function_at_mid_range <= 0.0f) {
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heinrichsweikamp
parents:
diff changeset
1935 time_to_start_of_deco_zone = mid_range_time;
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heinrichsweikamp
parents:
diff changeset
1936 }
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heinrichsweikamp
parents:
diff changeset
1937 if( fabs(differential_change) < 0.001f
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heinrichsweikamp
parents:
diff changeset
1938 || function_at_mid_range == 0.0f)
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heinrichsweikamp
parents:
diff changeset
1939 {
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heinrichsweikamp
parents:
diff changeset
1940 goto L170;
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heinrichsweikamp
parents:
diff changeset
1941 }
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heinrichsweikamp
parents:
diff changeset
1942 /* L150: */
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heinrichsweikamp
parents:
diff changeset
1943 }
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heinrichsweikamp
parents:
diff changeset
1944 printf("\nERROR! ROOT SEARCH EXCEEDED MAXIMUM ITERATIONS");
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heinrichsweikamp
parents:
diff changeset
1945 //pause();
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heinrichsweikamp
parents:
diff changeset
1946
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heinrichsweikamp
parents:
diff changeset
1947 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1948 /* When a solution with the desired accuracy is found, the program jumps out */
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heinrichsweikamp
parents:
diff changeset
1949 /* of the loop to Line 170 and assigns the solution value for the individual */
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heinrichsweikamp
parents:
diff changeset
1950 /* compartment. */
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heinrichsweikamp
parents:
diff changeset
1951 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1952
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heinrichsweikamp
parents:
diff changeset
1953 L170:
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heinrichsweikamp
parents:
diff changeset
1954 cpt_depth_start_of_deco_zone =
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heinrichsweikamp
parents:
diff changeset
1955 starting_ambient_pressure +
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heinrichsweikamp
parents:
diff changeset
1956 *rate * time_to_start_of_deco_zone -
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heinrichsweikamp
parents:
diff changeset
1957 barometric_pressure;
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heinrichsweikamp
parents:
diff changeset
1958
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heinrichsweikamp
parents:
diff changeset
1959 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1960 /* The overall solution will be the compartment with the maximum depth where */
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heinrichsweikamp
parents:
diff changeset
1961 /* gas tension equals ambient pressure (leading compartment). */
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heinrichsweikamp
parents:
diff changeset
1962 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1963
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heinrichsweikamp
parents:
diff changeset
1964 *depth_start_of_deco_zone =
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heinrichsweikamp
parents:
diff changeset
1965 fmaxf(*depth_start_of_deco_zone, cpt_depth_start_of_deco_zone);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1966 /* L200: */
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heinrichsweikamp
parents:
diff changeset
1967 }
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heinrichsweikamp
parents:
diff changeset
1968 return 0;
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heinrichsweikamp
parents:
diff changeset
1969 } /* calc_start_of_deco_zone */
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heinrichsweikamp
parents:
diff changeset
1970
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1971 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1972 /* SUBROUTINE PROJECTED_ASCENT */
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heinrichsweikamp
parents:
diff changeset
1973 /* Purpose: This subprogram performs a simulated ascent outside of the main */
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heinrichsweikamp
parents:
diff changeset
1974 /* program to ensure that a deco ceiling will not be violated due to unusual */
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heinrichsweikamp
parents:
diff changeset
1975 /* gas loading during ascent (on-gassing). If the deco ceiling is violated, */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1976 /* the stop depth will be adjusted deeper by the step size until a safe */
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heinrichsweikamp
parents:
diff changeset
1977 /* ascent can be made. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1978 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1979
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1980 static int projected_ascent(float *starting_depth,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1981 float *rate,
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heinrichsweikamp
parents:
diff changeset
1982 float *deco_stop_depth,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1983 float *step_size)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1984 {
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heinrichsweikamp
parents:
diff changeset
1985 /* Local variables */
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heinrichsweikamp
parents:
diff changeset
1986 float weighted_allowable_gradient,
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heinrichsweikamp
parents:
diff changeset
1987 ending_ambient_pressure,
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heinrichsweikamp
parents:
diff changeset
1988 temp_gas_loading[16];
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heinrichsweikamp
parents:
diff changeset
1989 int i;
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heinrichsweikamp
parents:
diff changeset
1990 float allowable_gas_loading[16];
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heinrichsweikamp
parents:
diff changeset
1991 float temp_nitrogen_pressure[16];
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heinrichsweikamp
parents:
diff changeset
1992 float temp_helium_pressure[16];
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heinrichsweikamp
parents:
diff changeset
1993 float run_time_save = 0;
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heinrichsweikamp
parents:
diff changeset
1994
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1995 /* loop */
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heinrichsweikamp
parents:
diff changeset
1996 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1997 /* CALCULATIONS */
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heinrichsweikamp
parents:
diff changeset
1998 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1999
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2000
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2001 L665:
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heinrichsweikamp
parents:
diff changeset
2002 ending_ambient_pressure = *deco_stop_depth + barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2003 for (i = 1; i <= 16; ++i) {
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heinrichsweikamp
parents:
diff changeset
2004 temp_helium_pressure[i - 1] = helium_pressure[i - 1];
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heinrichsweikamp
parents:
diff changeset
2005 temp_nitrogen_pressure[i - 1] = nitrogen_pressure[i - 1];
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heinrichsweikamp
parents:
diff changeset
2006 }
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heinrichsweikamp
parents:
diff changeset
2007 run_time_save = run_time;
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heinrichsweikamp
parents:
diff changeset
2008 gas_loadings_ascent_descen(temp_helium_pressure, temp_nitrogen_pressure, *starting_depth,*deco_stop_depth,*rate,true);
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heinrichsweikamp
parents:
diff changeset
2009 run_time = run_time_save;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2010
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2011 for (i = 1; i <= 16; ++i)
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heinrichsweikamp
parents:
diff changeset
2012 {
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heinrichsweikamp
parents:
diff changeset
2013 temp_gas_loading[i - 1] =
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heinrichsweikamp
parents:
diff changeset
2014 temp_helium_pressure[i - 1] +
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heinrichsweikamp
parents:
diff changeset
2015 temp_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2016 if (temp_gas_loading[i - 1] > 0.0f)
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heinrichsweikamp
parents:
diff changeset
2017 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2018 weighted_allowable_gradient =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2019 (allowable_gradient_he[i - 1] *
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heinrichsweikamp
parents:
diff changeset
2020 temp_helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2021 allowable_gradient_n2[i - 1] *
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heinrichsweikamp
parents:
diff changeset
2022 temp_nitrogen_pressure[i - 1]) / temp_gas_loading[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2023 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2024 /* Computing MIN */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2025 weighted_allowable_gradient = fminf(allowable_gradient_he[i - 1],allowable_gradient_n2[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2026 }
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heinrichsweikamp
parents:
diff changeset
2027 allowable_gas_loading[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2028 ending_ambient_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2029 weighted_allowable_gradient -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2030 CONSTANT_PRESSURE_OTHER_GASES;
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heinrichsweikamp
parents:
diff changeset
2031 /* L670: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2032 }
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heinrichsweikamp
parents:
diff changeset
2033 for (i = 1; i <= 16; ++i) {
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heinrichsweikamp
parents:
diff changeset
2034 if (temp_gas_loading[i - 1] > allowable_gas_loading[i - 1]) {
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heinrichsweikamp
parents:
diff changeset
2035 *deco_stop_depth += *step_size;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2036 goto L665;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2037 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2038 /* L671: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2039 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2040 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2041 } /* projected_ascent */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2042
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2043 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2044 /* SUBROUTINE DECOMPRESSION_STOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2045 /* Purpose: This subprogram calculates the required time at each */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2046 /* decompression stop. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2047 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2048
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
2049 static void decompression_stop(float *deco_stop_depth,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2050 float *step_size,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2051 _Bool final_deco_calculation)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2052 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2053 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2054 float inspired_nitrogen_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2055 // short last_segment_number;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2056 // float weighted_allowable_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2057 float initial_helium_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2058 /* by hw */
51
8f8ea3a32e82 Resolved warnings pointing to possible invalid memory access
Ideenmodellierer
parents: 38
diff changeset
2059 float initial_CNS = gCNS_VPM;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2060
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2061 //static float time_counter;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2062 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2063 float ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2064 float inspired_helium_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2065 next_stop;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2066 //last_run_time,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2067 //temp_segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2068
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2069 float deco_ceiling_depth,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2070 initial_nitrogen_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2071 //round_up_operation;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2072 float fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2073 float fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2074 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2075 _Bool buehlmann_wait = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2076 float tissue_He_saturation[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2077 float tissue_N2_saturation[16];
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2078 float vpm_buehlmann_safety_gradient = 1.0f - (((float)pDiveSettings->vpm_conservatism) / 40);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2079 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2080 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2081 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2082 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2083
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2084 segment_time = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2085 // temp_segment_time = segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2086 ambient_pressure = *deco_stop_depth + barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2087 //ending_ambient_pressure = ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2088 decom_get_inert_gases(ambient_pressure / 10, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_begin, &fraction_helium_begin );
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2089
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2090 if(*deco_stop_depth == (float)(pDiveSettings->last_stop_depth_bar * 10))
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2091 next_stop = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2092 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2093 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2094 next_stop = *deco_stop_depth - *step_size;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2095 next_stop = fmaxf(next_stop,(float)pDiveSettings->last_stop_depth_bar * 10);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2096 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2097
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2098 inspired_helium_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2099 (ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2100 inspired_nitrogen_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2101 (ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2102
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2103 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2104 /* Check to make sure that program won't lock up if unable to decompress */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2105 /* to the next stop. If so, write error message and terminate program. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2106 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2107
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2108 //deco_ceiling_depth = next_stop +1; //deco_ceiling_depth = next_stop + 1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2109 if(!vpm_violates_buehlmann)
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2110 {
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2111 calc_deco_ceiling(&deco_ceiling_depth, false); //weg, weil auf jeden Fall schleife für safety und so konservativer
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2112 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2113 else
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2114 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2115 deco_ceiling_depth = next_stop + 1.0;
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2116 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2117 if(deco_ceiling_depth > next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2118 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2119 while (deco_ceiling_depth > next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2120 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2121
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2122 segment_time += 60.0;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2123 if(segment_time >= 999.0 )
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2124 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2125 segment_time = 999.0 ;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2126 run_time += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2127 return;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2128 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2129 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2130 initial_CNS = gCNS_VPM;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2131 decom_oxygen_calculate_cns_exposure(60*60,&pDiveSettings->decogaslist[mix_number],ambient_pressure/10,&gCNS_VPM);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2132 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2133 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2134 initial_helium_pressure[i] = helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2135 initial_nitrogen_pressure[i] = nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2136 helium_pressure[i] += (inspired_helium_pressure - helium_pressure[i]) * float_buehlmann_He_factor_expositon_one_hour[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2137 nitrogen_pressure[i] += (inspired_nitrogen_pressure - nitrogen_pressure[i]) * float_buehlmann_N2_factor_expositon_one_hour[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2138 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2139 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2140 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2141 if(deco_ceiling_depth < next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2142 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2143 segment_time -= 60.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2144 gCNS_VPM = initial_CNS;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2145 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2146 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2147 helium_pressure[i] = initial_helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2148 nitrogen_pressure[i] = initial_nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2149 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2150 deco_ceiling_depth = next_stop +1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2151 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2152 count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2153 while (deco_ceiling_depth > next_stop && count < 13)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2154 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2155 count++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2156 segment_time += 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2157 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2158 initial_CNS = gCNS_VPM;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2159 decom_oxygen_calculate_cns_exposure(60*5,&pDiveSettings->decogaslist[mix_number],ambient_pressure/10,&gCNS_VPM);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2160 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2161 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2162 initial_helium_pressure[i] = helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2163 initial_nitrogen_pressure[i] = nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2164 helium_pressure[i] += (inspired_helium_pressure - helium_pressure[i]) * float_buehlmann_He_factor_expositon_five_minutes[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2165 nitrogen_pressure[i] += (inspired_nitrogen_pressure - nitrogen_pressure[i]) * float_buehlmann_N2_factor_expositon_five_minutes[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2166 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2167 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2168 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2169 if(deco_ceiling_depth < next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2170 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2171 segment_time -= 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2172 gCNS_VPM = initial_CNS;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2173 for (i = 0; i < 16; i++) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2174 helium_pressure[i] = initial_helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2175 nitrogen_pressure[i] = initial_nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2176 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2177 deco_ceiling_depth = next_stop +1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2178 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2179 buehlmann_wait = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2180 while (buehlmann_wait || (deco_ceiling_depth > next_stop))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2181 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2182 //time_counter = temp_segment_time;
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2183 segment_time += 1.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2184
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2185 if(segment_time >= 999.0 )
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2186 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2187 segment_time = 999.0 ;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2188 run_time += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2189 return;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2190 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2191 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2192 initial_CNS = gCNS_VPM;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2193 decom_oxygen_calculate_cns_exposure(60*1,&pDiveSettings->decogaslist[mix_number],ambient_pressure/10,&gCNS_VPM);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2194 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2195 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2196 initial_helium_pressure[i] = helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2197 initial_nitrogen_pressure[i] = nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2198 helium_pressure[i] += (inspired_helium_pressure - helium_pressure[i]) * float_buehlmann_He_factor_expositon_one_minute[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2199 nitrogen_pressure[i] += (inspired_nitrogen_pressure - nitrogen_pressure[i]) * float_buehlmann_N2_factor_expositon_one_minute[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2200 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2201 if(!buehlmann_wait)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2202 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2203
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2204 if(buehlmannSafety && final_deco_calculation && !(deco_ceiling_depth > next_stop))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2205 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2206 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2207 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2208 tissue_He_saturation[i] = helium_pressure[i] / 10;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2209 tissue_N2_saturation[i] = nitrogen_pressure[i] / 10;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2210 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2211 if( (fabsf(nitrogen_pressure[15] - inspired_nitrogen_pressure) < 0.00001f) && (fabsf(helium_pressure[15] - inspired_helium_pressure) < 0.00001f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2212 && (fabsf(nitrogen_pressure[0] - inspired_nitrogen_pressure) < 0.00001f) && (fabsf(helium_pressure[0] - inspired_helium_pressure) < 0.00001f))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2213 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2214 buehlmann_wait_exceeded = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2215 break;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2216 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2217
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2218 if(decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (next_stop / 10.0f) + pInput->pressure_surface_bar))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2219 break;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2220
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2221 buehlmann_wait = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2222 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2223 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2224 if(buehlmann_wait)
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2225 {
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2226 vpm_violates_buehlmann = true;
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2227 }
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2228 if(!buehlmann_wait)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2229 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2230 if(deco_ceiling_depth < next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2231 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2232 segment_time -= 1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2233 gCNS_VPM = initial_CNS;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2234 for (i = 0; i < 16; i++) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2235 helium_pressure[i] = initial_helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2236 nitrogen_pressure[i] = initial_nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2237 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2238 deco_ceiling_depth = next_stop +1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2239 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2240 while (deco_ceiling_depth > next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2241 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2242 //time_counter = temp_segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2243 segment_time += (float) 1.0f / 3.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2244 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2245 initial_CNS = gCNS_VPM;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2246 decom_oxygen_calculate_cns_exposure(20,&pDiveSettings->decogaslist[mix_number],ambient_pressure/10,&gCNS_VPM);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2247 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2248 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2249 helium_pressure[i] += (inspired_helium_pressure - helium_pressure[i]) * float_buehlmann_He_factor_expositon_20_seconds[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2250 nitrogen_pressure[i] += (inspired_nitrogen_pressure - nitrogen_pressure[i]) * float_buehlmann_N2_factor_expositon_20_seconds[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2251 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2252 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2253 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2254 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2255 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2256
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2257 /*float pressure_save =dive_data.pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2258 dive_data.pressure = ambient_pressure/10;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2259 tissues_exposure_stage(st_deco_test,(int)(segment_time * 60), &dive_data, &gaslist);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2260 dive_data.pressure = pressure_save;*/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2261 run_time += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2262 return;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2263 } /* decompression_stop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2264
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2265 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2266 // SUROUTINE BOYLES_LAW_COMPENSATION
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2267 // Purpose: This subprogram calculates the reduction in allowable gradients
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2268 // with decreasing ambient pressure during the decompression profile based
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2269 // on Boyle's Law considerations.
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2270 //===============================================================================
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
2271 static void BOYLES_LAW_COMPENSATION (float* First_Stop_Depth,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2272 float* Deco_Stop_Depth,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2273 float* Step_Size)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2274 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2275 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2276
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2277 float Next_Stop;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2278 float Ambient_Pressure_First_Stop, Ambient_Pressure_Next_Stop;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2279 float Amb_Press_First_Stop_Pascals, Amb_Press_Next_Stop_Pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2280 float A, B, C, Low_Bound, High_Bound, Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2281 float Deco_Gradient_Pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2282 float Allow_Grad_First_Stop_He_Pa, Radius_First_Stop_He;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2283 float Allow_Grad_First_Stop_N2_Pa, Radius_First_Stop_N2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2284
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2285 //===============================================================================
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2286 // LO//AL ARRAYS
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2287 //===============================================================================
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2288 // float Radius1_He[16], Radius2_He[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2289 // float Radius1_N2[16], Radius2_N2[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2290 float root_factor;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2291
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2292 //===============================================================================
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2293 // CALCULATIONS
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2294 //===============================================================================
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2295 Next_Stop = *Deco_Stop_Depth - *Step_Size;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2296
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2297 Ambient_Pressure_First_Stop = *First_Stop_Depth +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2298 barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2299
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2300 Ambient_Pressure_Next_Stop = Next_Stop + barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2301
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2302 Amb_Press_First_Stop_Pascals = (Ambient_Pressure_First_Stop/UNITS_FACTOR) * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2303
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2304 Amb_Press_Next_Stop_Pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2305 (Ambient_Pressure_Next_Stop/UNITS_FACTOR) * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2306 root_factor = powf(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals,1.0f / 3.0f);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2307
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2308 for( i = 0; i < 16;i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2309 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2310 Allow_Grad_First_Stop_He_Pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2311 (allowable_gradient_he[i]/UNITS_FACTOR) * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2312
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2313 Radius_First_Stop_He = (2.0f * SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2314 Allow_Grad_First_Stop_He_Pa;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2315
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2316 // Radius1_He[i] = Radius_First_Stop_He;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2317 A = Amb_Press_Next_Stop_Pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2318 B = -2.0f * SURFACE_TENSION_GAMMA;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2319 C = (Amb_Press_First_Stop_Pascals + (2.0f * SURFACE_TENSION_GAMMA)/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2320 Radius_First_Stop_He)* Radius_First_Stop_He*
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2321 (Radius_First_Stop_He*(Radius_First_Stop_He));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2322 Low_Bound = Radius_First_Stop_He;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2323 High_Bound = Radius_First_Stop_He * root_factor;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2324 //*pow(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals,1.0/3.0);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2325 //*(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals)**(1.0/3.0);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2326
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2327 radius_root_finder(&A,&B,&C, &Low_Bound, &High_Bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2328 &Ending_Radius);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2329
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2330 // Radius2_He[i] = Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2331 Deco_Gradient_Pascals = (2.0f * SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2332 Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2333
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2334 deco_gradient_he[i] = (Deco_Gradient_Pascals / 101325.0f)*
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2335 UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2336
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2337 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2338
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2339 for( i = 0; i < 16;i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2340 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2341 Allow_Grad_First_Stop_N2_Pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2342 (allowable_gradient_n2[i]/UNITS_FACTOR) * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2343
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2344 Radius_First_Stop_N2 = (2.0f * SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2345 Allow_Grad_First_Stop_N2_Pa;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2346
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2347 // Radius1_N2[i] = Radius_First_Stop_N2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2348 A = Amb_Press_Next_Stop_Pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2349 B = -2.0f * SURFACE_TENSION_GAMMA;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2350 C = (Amb_Press_First_Stop_Pascals + (2.0f * SURFACE_TENSION_GAMMA)/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2351 Radius_First_Stop_N2)* Radius_First_Stop_N2*
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2352 (Radius_First_Stop_N2*(Radius_First_Stop_N2));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2353 Low_Bound = Radius_First_Stop_N2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2354 High_Bound = Radius_First_Stop_N2* root_factor;//pow(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals,1.0/3.0);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2355
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2356 //High_Bound = Radius_First_Stop_N2*exp(log(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals)/3);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2357 radius_root_finder(&A,&B,&C, &Low_Bound, &High_Bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2358 &Ending_Radius);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2359
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2360 // Radius2_N2[i] = Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2361 Deco_Gradient_Pascals = (2.0f * SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2362 Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2363
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2364 deco_gradient_n2[i] = (Deco_Gradient_Pascals / 101325.0f)*
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2365 UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2366 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2367 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2368
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2369 /* =============================================================================== */
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2370 // vpm_calc_ndl
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2371 // Purpose: This function computes NDL (time where no decostops are needed)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2372 //===============================================================================
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2373 #define MAX_NDL 240
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2374
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2375 static int vpm_calc_ndl(void)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2376 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2377 static float future_helium_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2378 static float future_nitrogen_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2379 static int temp_segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2380 static int mix_number;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2381 static float inspired_helium_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2382 static float inspired_nitrogen_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2383
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2384 float previous_helium_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2385 float previous_nitrogen_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2386 float ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2387 float fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2388 float fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2389 int i = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2390 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2391 int status = CALC_END;
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2392
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2393 for(i = 0; i < 16;i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2394 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2395 future_helium_pressure[i] = pInput->tissue_helium_bar[i] * 10.0;//tissue_He_saturation[st_dive][i] * 10;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2396 future_nitrogen_pressure[i] = pInput->tissue_nitrogen_bar[i] * 10.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2397 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2398 temp_segment_time = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2399
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2400 mix_number = 0;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2401 ambient_pressure = pInput->pressure_ambient_bar * 10;
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2402 decom_get_inert_gases( ambient_pressure / 10, (&pDiveSettings->decogaslist[mix_number]) , &fraction_nitrogen_begin, &fraction_helium_begin );
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2403 inspired_helium_pressure =(ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2404 inspired_nitrogen_pressure =(ambient_pressure - WATER_VAPOR_PRESSURE) *fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2405
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2406 status = CALC_END;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2407 while (status == CALC_END)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2408 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2409 count++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2410 temp_segment_time += 60;
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2411 if(temp_segment_time >= MAX_NDL)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2412 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2413 pDecoInfo->output_ndl_seconds = temp_segment_time * 60;
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2414 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2415 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2416 run_time += 60;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2417 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2418 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2419 previous_helium_pressure[i-1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2420 previous_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2421 future_helium_pressure[i - 1] = future_helium_pressure[i - 1] + (inspired_helium_pressure - future_helium_pressure[i - 1]) * float_buehlmann_He_factor_expositon_one_hour[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2422 future_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1] + (inspired_nitrogen_pressure - future_nitrogen_pressure[i - 1]) * float_buehlmann_N2_factor_expositon_one_hour[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2423 helium_pressure[i - 1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2424 nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2425 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2426 vpm_calc_deco();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2427 while((status = vpm_calc_critcal_volume(true,true)) == CALC_CRITICAL);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2428
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2429 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2430
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2431 temp_segment_time -= 60;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2432 run_time -= 60;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2433 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2434 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2435 future_helium_pressure[i - 1] = previous_helium_pressure[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2436 future_nitrogen_pressure[i - 1] = previous_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2437 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2438
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2439 status = CALC_END;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2440 if(temp_segment_time < 60)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2441 nullzeit_unter60 = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2442
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2443 while (status == CALC_END)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2444 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2445 temp_segment_time += 5;
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2446 if(temp_segment_time >= MAX_NDL)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2447 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2448 pDecoInfo->output_ndl_seconds = temp_segment_time * 60;
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2449 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2450 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2451 if(nullzeit_unter60 && temp_segment_time > 60)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2452 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2453 nullzeit_unter60 = false;
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2454 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2455 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2456 run_time += 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2457 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2458 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2459 previous_helium_pressure[i-1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2460 previous_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2461 future_helium_pressure[i - 1] = future_helium_pressure[i - 1] + (inspired_helium_pressure - future_helium_pressure[i - 1]) * float_buehlmann_He_factor_expositon_five_minutes[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2462 future_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1] + (inspired_nitrogen_pressure - future_nitrogen_pressure[i - 1]) * float_buehlmann_N2_factor_expositon_five_minutes[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2463 helium_pressure[i - 1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2464 nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2465 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2466 vpm_calc_deco();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2467 while((status =vpm_calc_critcal_volume(true,true)) == CALC_CRITICAL);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2468 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2469 temp_segment_time -= 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2470 run_time -= 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2471 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2472 future_helium_pressure[i - 1] = previous_helium_pressure[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2473 future_nitrogen_pressure[i - 1] = previous_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2474 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2475 status = CALC_END;
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2476
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2477 if(temp_segment_time <= 20)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2478 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2479 while (status == CALC_END)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2480 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2481 temp_segment_time += minimum_deco_stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2482 run_time += minimum_deco_stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2483 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2484 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2485 future_helium_pressure[i - 1] = future_helium_pressure[i - 1] + (inspired_helium_pressure - future_helium_pressure[i - 1]) * float_buehlmann_He_factor_expositon_one_minute[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2486 future_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1] + (inspired_nitrogen_pressure - future_nitrogen_pressure[i - 1]) * float_buehlmann_N2_factor_expositon_one_minute[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2487 helium_pressure[i - 1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2488 nitrogen_pressure[i - 1] =future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2489
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2490 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2491 vpm_calc_deco();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2492 while((status =vpm_calc_critcal_volume(true,true)) == CALC_CRITICAL);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2493
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2494 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2495 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2496 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2497 temp_segment_time += 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2498 pDecoInfo->output_ndl_seconds = temp_segment_time * 60;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2499 if(temp_segment_time > 1)
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2500 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2501 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2502 return CALC_BEGIN;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2503 }
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2504
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2505 void vpm_table_init()
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2506 {
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2507 vpmTable.output_time_to_surface_seconds = 0;
907
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2508 vpmTableState = VPM_TABLE_INIT;
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2509 }
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2510 uint8_t vpm_get_decozone(void)
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2511 {
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2512 return((uint8_t)pVpm->depth_start_of_deco_zone_save);
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2513 }
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2514 SvpmTableState vpm_get_TableState(void)
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2515 {
46a21ff3f5ab Adaptation custom view deco plan for VPM:
ideenmodellierer
parents: 902
diff changeset
2516 return vpmTableState;
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2517 }
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2518