1 | SUBROUTINE lpm_boundary_conds( range ) |
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2 | |
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3 | !--------------------------------------------------------------------------------! |
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4 | ! This file is part of PALM. |
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5 | ! |
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6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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8 | ! either version 3 of the License, or (at your option) any later version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2012 Leibniz University Hannover |
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18 | !--------------------------------------------------------------------------------! |
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19 | ! |
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20 | ! Current revisions: |
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21 | ! ----------------- |
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22 | ! |
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23 | ! |
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24 | ! Former revisions: |
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25 | ! ----------------- |
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26 | ! $Id: lpm_boundary_conds.f90 1036 2012-10-22 13:43:42Z raasch $ |
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27 | ! |
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28 | ! 849 2012-03-15 10:35:09Z raasch |
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29 | ! routine renamed lpm_boundary_conds, bottom and top boundary conditions |
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30 | ! included (former part of advec_particles) |
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31 | ! |
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32 | ! 824 2012-02-17 09:09:57Z raasch |
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33 | ! particle attributes speed_x|y|z_sgs renamed rvar1|2|3 |
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34 | ! |
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35 | ! 150 2008-02-29 08:19:58Z raasch |
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36 | ! Vertical index calculations adjusted for ocean runs. |
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37 | ! |
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38 | ! Initial version (2007/03/09) |
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39 | ! |
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40 | ! Description: |
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41 | ! ------------ |
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42 | ! Boundary conditions for the Lagrangian particles. |
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43 | ! The routine consists of two different parts. One handles the bottom (flat) |
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44 | ! and top boundary. In this part, also particles which exceeded their lifetime |
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45 | ! are deleted. |
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46 | ! The other part handles the reflection of particles from vertical walls. |
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47 | ! This part was developed by Jin Zhang during 2006-2007. |
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48 | ! |
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49 | ! To do: Code structure for finding the t_index values and for checking the |
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50 | ! ----- reflection conditions is basically the same for all four cases, so it |
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51 | ! should be possible to further simplify/shorten it. |
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52 | ! |
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53 | ! THE WALLS PART OF THIS ROUTINE HAS NOT BEEN TESTED FOR OCEAN RUNS SO FAR!!!! |
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54 | ! (see offset_ocean_*) |
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55 | !------------------------------------------------------------------------------! |
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56 | |
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57 | USE arrays_3d |
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58 | USE control_parameters |
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59 | USE cpulog |
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60 | USE grid_variables |
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61 | USE indices |
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62 | USE interfaces |
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63 | USE particle_attributes |
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64 | USE pegrid |
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65 | |
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66 | IMPLICIT NONE |
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67 | |
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68 | CHARACTER (LEN=*) :: range |
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69 | |
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70 | INTEGER :: i, inc, ir, i1, i2, i3, i5, j, jr, j1, j2, j3, j5, k, k1, k2, & |
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71 | k3, k5, n, nn, t_index, t_index_number |
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72 | |
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73 | LOGICAL :: reflect_x, reflect_y, reflect_z |
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74 | |
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75 | REAL :: dt_particle, pos_x, pos_x_old, pos_y, pos_y_old, pos_z, & |
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76 | pos_z_old, prt_x, prt_y, prt_z, tmp_t, xline, yline, zline |
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77 | |
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78 | REAL :: t(1:200) |
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79 | |
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80 | |
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81 | |
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82 | IF ( range == 'bottom/top' ) THEN |
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83 | |
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84 | ! |
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85 | !-- Apply boundary conditions to those particles that have crossed the top or |
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86 | !-- bottom boundary and delete those particles, which are older than allowed |
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87 | DO n = 1, number_of_particles |
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88 | |
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89 | nn = particles(n)%tail_id |
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90 | |
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91 | ! |
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92 | !-- Stop if particles have moved further than the length of one |
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93 | !-- PE subdomain (newly released particles have age = age_m!) |
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94 | IF ( particles(n)%age /= particles(n)%age_m ) THEN |
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95 | IF ( ABS(particles(n)%speed_x) > & |
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96 | ((nxr-nxl+2)*dx)/(particles(n)%age-particles(n)%age_m) .OR. & |
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97 | ABS(particles(n)%speed_y) > & |
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98 | ((nyn-nys+2)*dy)/(particles(n)%age-particles(n)%age_m) ) THEN |
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99 | |
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100 | WRITE( message_string, * ) 'particle too fast. n = ', n |
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101 | CALL message( 'lpm_boundary_conds', 'PA0148', 2, 2, -1, 6, 1 ) |
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102 | ENDIF |
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103 | ENDIF |
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104 | |
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105 | IF ( particles(n)%age > particle_maximum_age .AND. & |
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106 | particle_mask(n) ) & |
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107 | THEN |
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108 | particle_mask(n) = .FALSE. |
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109 | deleted_particles = deleted_particles + 1 |
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110 | IF ( use_particle_tails .AND. nn /= 0 ) THEN |
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111 | tail_mask(nn) = .FALSE. |
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112 | deleted_tails = deleted_tails + 1 |
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113 | ENDIF |
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114 | ENDIF |
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115 | |
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116 | IF ( particles(n)%z >= zu(nz) .AND. particle_mask(n) ) THEN |
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117 | IF ( ibc_par_t == 1 ) THEN |
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118 | ! |
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119 | !-- Particle absorption |
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120 | particle_mask(n) = .FALSE. |
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121 | deleted_particles = deleted_particles + 1 |
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122 | IF ( use_particle_tails .AND. nn /= 0 ) THEN |
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123 | tail_mask(nn) = .FALSE. |
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124 | deleted_tails = deleted_tails + 1 |
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125 | ENDIF |
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126 | ELSEIF ( ibc_par_t == 2 ) THEN |
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127 | ! |
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128 | !-- Particle reflection |
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129 | particles(n)%z = 2.0 * zu(nz) - particles(n)%z |
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130 | particles(n)%speed_z = -particles(n)%speed_z |
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131 | IF ( use_sgs_for_particles .AND. & |
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132 | particles(n)%rvar3 > 0.0 ) THEN |
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133 | particles(n)%rvar3 = -particles(n)%rvar3 |
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134 | ENDIF |
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135 | IF ( use_particle_tails .AND. nn /= 0 ) THEN |
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136 | particle_tail_coordinates(1,3,nn) = 2.0 * zu(nz) - & |
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137 | particle_tail_coordinates(1,3,nn) |
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138 | ENDIF |
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139 | ENDIF |
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140 | ENDIF |
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141 | IF ( particles(n)%z < zw(0) .AND. particle_mask(n) ) THEN |
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142 | IF ( ibc_par_b == 1 ) THEN |
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143 | ! |
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144 | !-- Particle absorption |
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145 | particle_mask(n) = .FALSE. |
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146 | deleted_particles = deleted_particles + 1 |
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147 | IF ( use_particle_tails .AND. nn /= 0 ) THEN |
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148 | tail_mask(nn) = .FALSE. |
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149 | deleted_tails = deleted_tails + 1 |
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150 | ENDIF |
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151 | ELSEIF ( ibc_par_b == 2 ) THEN |
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152 | ! |
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153 | !-- Particle reflection |
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154 | particles(n)%z = 2.0 * zw(0) - particles(n)%z |
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155 | particles(n)%speed_z = -particles(n)%speed_z |
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156 | IF ( use_sgs_for_particles .AND. & |
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157 | particles(n)%rvar3 < 0.0 ) THEN |
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158 | particles(n)%rvar3 = -particles(n)%rvar3 |
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159 | ENDIF |
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160 | IF ( use_particle_tails .AND. nn /= 0 ) THEN |
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161 | particle_tail_coordinates(1,3,nn) = 2.0 * zu(nz) - & |
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162 | particle_tail_coordinates(1,3,nn) |
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163 | ENDIF |
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164 | IF ( use_particle_tails .AND. nn /= 0 ) THEN |
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165 | particle_tail_coordinates(1,3,nn) = 2.0 * zw(0) - & |
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166 | particle_tail_coordinates(1,3,nn) |
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167 | ENDIF |
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168 | ENDIF |
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169 | ENDIF |
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170 | ENDDO |
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171 | |
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172 | ELSEIF ( range == 'walls' ) THEN |
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173 | |
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174 | CALL cpu_log( log_point_s(48), 'lpm_wall_reflect', 'start' ) |
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175 | |
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176 | reflect_x = .FALSE. |
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177 | reflect_y = .FALSE. |
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178 | reflect_z = .FALSE. |
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179 | |
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180 | DO n = 1, number_of_particles |
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181 | |
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182 | dt_particle = particles(n)%age - particles(n)%age_m |
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183 | |
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184 | i2 = ( particles(n)%x + 0.5 * dx ) * ddx |
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185 | j2 = ( particles(n)%y + 0.5 * dy ) * ddy |
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186 | k2 = particles(n)%z / dz + 1 + offset_ocean_nzt_m1 |
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187 | |
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188 | prt_x = particles(n)%x |
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189 | prt_y = particles(n)%y |
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190 | prt_z = particles(n)%z |
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191 | |
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192 | ! |
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193 | !-- If the particle position is below the surface, it has to be reflected |
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194 | IF ( k2 <= nzb_s_inner(j2,i2) .AND. nzb_s_inner(j2,i2) /=0 ) THEN |
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195 | |
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196 | pos_x_old = particles(n)%x - particles(n)%speed_x * dt_particle |
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197 | pos_y_old = particles(n)%y - particles(n)%speed_y * dt_particle |
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198 | pos_z_old = particles(n)%z - particles(n)%speed_z * dt_particle |
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199 | i1 = ( pos_x_old + 0.5 * dx ) * ddx |
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200 | j1 = ( pos_y_old + 0.5 * dy ) * ddy |
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201 | k1 = pos_z_old / dz + offset_ocean_nzt_m1 |
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202 | |
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203 | ! |
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204 | !-- Case 1 |
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205 | IF ( particles(n)%x > pos_x_old .AND. particles(n)%y > pos_y_old )& |
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206 | THEN |
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207 | t_index = 1 |
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208 | |
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209 | DO i = i1, i2 |
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210 | xline = i * dx + 0.5 * dx |
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211 | t(t_index) = ( xline - pos_x_old ) / & |
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212 | ( particles(n)%x - pos_x_old ) |
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213 | t_index = t_index + 1 |
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214 | ENDDO |
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215 | |
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216 | DO j = j1, j2 |
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217 | yline = j * dy + 0.5 * dy |
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218 | t(t_index) = ( yline - pos_y_old ) / & |
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219 | ( particles(n)%y - pos_y_old ) |
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220 | t_index = t_index + 1 |
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221 | ENDDO |
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222 | |
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223 | IF ( particles(n)%z < pos_z_old ) THEN |
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224 | DO k = k1, k2 , -1 |
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225 | zline = k * dz |
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226 | t(t_index) = ( pos_z_old - zline ) / & |
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227 | ( pos_z_old - particles(n)%z ) |
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228 | t_index = t_index + 1 |
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229 | ENDDO |
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230 | ENDIF |
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231 | |
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232 | t_index_number = t_index - 1 |
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233 | |
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234 | ! |
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235 | !-- Sorting t |
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236 | inc = 1 |
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237 | jr = 1 |
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238 | DO WHILE ( inc <= t_index_number ) |
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239 | inc = 3 * inc + 1 |
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240 | ENDDO |
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241 | |
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242 | DO WHILE ( inc > 1 ) |
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243 | inc = inc / 3 |
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244 | DO ir = inc+1, t_index_number |
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245 | tmp_t = t(ir) |
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246 | jr = ir |
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247 | DO WHILE ( t(jr-inc) > tmp_t ) |
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248 | t(jr) = t(jr-inc) |
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249 | jr = jr - inc |
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250 | IF ( jr <= inc ) EXIT |
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251 | ENDDO |
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252 | t(jr) = tmp_t |
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253 | ENDDO |
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254 | ENDDO |
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255 | |
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256 | case1: DO t_index = 1, t_index_number |
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257 | |
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258 | pos_x = pos_x_old + t(t_index) * ( prt_x - pos_x_old ) |
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259 | pos_y = pos_y_old + t(t_index) * ( prt_y - pos_y_old ) |
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260 | pos_z = pos_z_old + t(t_index) * ( prt_z - pos_z_old ) |
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261 | |
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262 | i3 = ( pos_x + 0.5 * dx ) * ddx |
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263 | j3 = ( pos_y + 0.5 * dy ) * ddy |
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264 | k3 = pos_z / dz + offset_ocean_nzt_m1 |
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265 | |
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266 | i5 = pos_x * ddx |
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267 | j5 = pos_y * ddy |
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268 | k5 = pos_z / dz + offset_ocean_nzt_m1 |
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269 | |
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270 | IF ( k5 <= nzb_s_inner(j5,i3) .AND. & |
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271 | nzb_s_inner(j5,i3) /= 0 ) THEN |
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272 | |
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273 | IF ( pos_z == nzb_s_inner(j5,i3) * dz .AND. & |
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274 | k3 == nzb_s_inner(j5,i3) ) THEN |
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275 | reflect_z = .TRUE. |
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276 | EXIT case1 |
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277 | ENDIF |
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278 | |
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279 | ENDIF |
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280 | |
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281 | IF ( k5 <= nzb_s_inner(j3,i5) .AND. & |
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282 | nzb_s_inner(j3,i5) /= 0 ) THEN |
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283 | |
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284 | IF ( pos_z == nzb_s_inner(j3,i5) * dz .AND. & |
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285 | k3 == nzb_s_inner(j3,i5) ) THEN |
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286 | reflect_z = .TRUE. |
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287 | EXIT case1 |
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288 | ENDIF |
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289 | |
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290 | ENDIF |
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291 | |
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292 | IF ( k3 <= nzb_s_inner(j3,i3) .AND. & |
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293 | nzb_s_inner(j3,i3) /= 0 ) THEN |
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294 | |
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295 | IF ( pos_z == nzb_s_inner(j3,i3) * dz .AND. & |
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296 | k3 == nzb_s_inner(j3,i3) ) THEN |
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297 | reflect_z = .TRUE. |
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298 | EXIT case1 |
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299 | ENDIF |
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300 | |
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301 | IF ( pos_y == ( j3 * dy - 0.5 * dy ) .AND. & |
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302 | pos_z < nzb_s_inner(j3,i3) * dz ) THEN |
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303 | reflect_y = .TRUE. |
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304 | EXIT case1 |
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305 | ENDIF |
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306 | |
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307 | IF ( pos_x == ( i3 * dx - 0.5 * dx ) .AND. & |
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308 | pos_z < nzb_s_inner(j3,i3) * dz ) THEN |
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309 | reflect_x = .TRUE. |
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310 | EXIT case1 |
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311 | ENDIF |
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312 | |
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313 | ENDIF |
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314 | |
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315 | ENDDO case1 |
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316 | |
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317 | ! |
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318 | !-- Case 2 |
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319 | ELSEIF ( particles(n)%x > pos_x_old .AND. & |
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320 | particles(n)%y < pos_y_old ) THEN |
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321 | |
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322 | t_index = 1 |
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323 | |
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324 | DO i = i1, i2 |
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325 | xline = i * dx + 0.5 * dx |
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326 | t(t_index) = ( xline - pos_x_old ) / & |
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327 | ( particles(n)%x - pos_x_old ) |
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328 | t_index = t_index + 1 |
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329 | ENDDO |
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330 | |
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331 | DO j = j1, j2, -1 |
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332 | yline = j * dy - 0.5 * dy |
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333 | t(t_index) = ( pos_y_old - yline ) / & |
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334 | ( pos_y_old - particles(n)%y ) |
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335 | t_index = t_index + 1 |
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336 | ENDDO |
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337 | |
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338 | IF ( particles(n)%z < pos_z_old ) THEN |
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339 | DO k = k1, k2 , -1 |
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340 | zline = k * dz |
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341 | t(t_index) = ( pos_z_old - zline ) / & |
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342 | ( pos_z_old - particles(n)%z ) |
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343 | t_index = t_index + 1 |
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344 | ENDDO |
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345 | ENDIF |
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346 | t_index_number = t_index-1 |
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347 | |
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348 | ! |
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349 | !-- Sorting t |
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350 | inc = 1 |
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351 | jr = 1 |
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352 | DO WHILE ( inc <= t_index_number ) |
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353 | inc = 3 * inc + 1 |
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354 | ENDDO |
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355 | |
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356 | DO WHILE ( inc > 1 ) |
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357 | inc = inc / 3 |
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358 | DO ir = inc+1, t_index_number |
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359 | tmp_t = t(ir) |
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360 | jr = ir |
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361 | DO WHILE ( t(jr-inc) > tmp_t ) |
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362 | t(jr) = t(jr-inc) |
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363 | jr = jr - inc |
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364 | IF ( jr <= inc ) EXIT |
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365 | ENDDO |
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366 | t(jr) = tmp_t |
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367 | ENDDO |
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368 | ENDDO |
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369 | |
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370 | case2: DO t_index = 1, t_index_number |
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371 | |
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372 | pos_x = pos_x_old + t(t_index) * ( prt_x - pos_x_old ) |
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373 | pos_y = pos_y_old + t(t_index) * ( prt_y - pos_y_old ) |
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374 | pos_z = pos_z_old + t(t_index) * ( prt_z - pos_z_old ) |
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375 | |
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376 | i3 = ( pos_x + 0.5 * dx ) * ddx |
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377 | j3 = ( pos_y + 0.5 * dy ) * ddy |
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378 | k3 = pos_z / dz + offset_ocean_nzt_m1 |
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379 | |
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380 | i5 = pos_x * ddx |
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381 | j5 = pos_y * ddy |
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382 | k5 = pos_z / dz + offset_ocean_nzt_m1 |
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383 | |
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384 | IF ( k5 <= nzb_s_inner(j3,i5) .AND. & |
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385 | nzb_s_inner(j3,i5) /= 0 ) THEN |
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386 | |
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387 | IF ( pos_z == nzb_s_inner(j3,i5) * dz .AND. & |
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388 | k3 == nzb_s_inner(j3,i5) ) THEN |
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389 | reflect_z = .TRUE. |
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390 | EXIT case2 |
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391 | ENDIF |
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392 | |
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393 | ENDIF |
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394 | |
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395 | IF ( k3 <= nzb_s_inner(j3,i3) .AND. & |
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396 | nzb_s_inner(j3,i3) /= 0 ) THEN |
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397 | |
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398 | IF ( pos_z == nzb_s_inner(j3,i3) * dz .AND. & |
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399 | k3 == nzb_s_inner(j3,i3) ) THEN |
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400 | reflect_z = .TRUE. |
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401 | EXIT case2 |
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402 | ENDIF |
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403 | |
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404 | IF ( pos_x == ( i3 * dx - 0.5 * dx ) .AND. & |
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405 | pos_z < nzb_s_inner(j3,i3) * dz ) THEN |
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406 | reflect_x = .TRUE. |
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407 | EXIT case2 |
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408 | ENDIF |
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409 | |
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410 | ENDIF |
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411 | |
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412 | IF ( k5 <= nzb_s_inner(j5,i3) .AND. & |
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413 | nzb_s_inner(j5,i3) /= 0 ) THEN |
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414 | |
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415 | IF ( pos_z == nzb_s_inner(j5,i3) * dz .AND. & |
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416 | k3 == nzb_s_inner(j5,i3) ) THEN |
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417 | reflect_z = .TRUE. |
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418 | EXIT case2 |
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419 | ENDIF |
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420 | |
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421 | IF ( pos_y == ( j5 * dy + 0.5 * dy ) .AND. & |
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422 | pos_z < nzb_s_inner(j5,i3) * dz ) THEN |
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423 | reflect_y = .TRUE. |
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424 | EXIT case2 |
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425 | ENDIF |
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426 | |
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427 | ENDIF |
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428 | |
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429 | ENDDO case2 |
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430 | |
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431 | ! |
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432 | !-- Case 3 |
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433 | ELSEIF ( particles(n)%x < pos_x_old .AND. & |
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434 | particles(n)%y > pos_y_old ) THEN |
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435 | |
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436 | t_index = 1 |
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437 | |
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438 | DO i = i1, i2, -1 |
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439 | xline = i * dx - 0.5 * dx |
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440 | t(t_index) = ( pos_x_old - xline ) / & |
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441 | ( pos_x_old - particles(n)%x ) |
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442 | t_index = t_index + 1 |
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443 | ENDDO |
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444 | |
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445 | DO j = j1, j2 |
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446 | yline = j * dy + 0.5 * dy |
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447 | t(t_index) = ( yline - pos_y_old ) / & |
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448 | ( particles(n)%y - pos_y_old ) |
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449 | t_index = t_index + 1 |
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450 | ENDDO |
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451 | |
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452 | IF ( particles(n)%z < pos_z_old ) THEN |
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453 | DO k = k1, k2 , -1 |
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454 | zline = k * dz |
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455 | t(t_index) = ( pos_z_old - zline ) / & |
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456 | ( pos_z_old - particles(n)%z ) |
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457 | t_index = t_index + 1 |
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458 | ENDDO |
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459 | ENDIF |
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460 | t_index_number = t_index - 1 |
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461 | |
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462 | ! |
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463 | !-- Sorting t |
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464 | inc = 1 |
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465 | jr = 1 |
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466 | |
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467 | DO WHILE ( inc <= t_index_number ) |
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468 | inc = 3 * inc + 1 |
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469 | ENDDO |
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470 | |
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471 | DO WHILE ( inc > 1 ) |
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472 | inc = inc / 3 |
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473 | DO ir = inc+1, t_index_number |
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474 | tmp_t = t(ir) |
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475 | jr = ir |
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476 | DO WHILE ( t(jr-inc) > tmp_t ) |
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477 | t(jr) = t(jr-inc) |
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478 | jr = jr - inc |
---|
479 | IF ( jr <= inc ) EXIT |
---|
480 | ENDDO |
---|
481 | t(jr) = tmp_t |
---|
482 | ENDDO |
---|
483 | ENDDO |
---|
484 | |
---|
485 | case3: DO t_index = 1, t_index_number |
---|
486 | |
---|
487 | pos_x = pos_x_old + t(t_index) * ( prt_x - pos_x_old ) |
---|
488 | pos_y = pos_y_old + t(t_index) * ( prt_y - pos_y_old ) |
---|
489 | pos_z = pos_z_old + t(t_index) * ( prt_z - pos_z_old ) |
---|
490 | |
---|
491 | i3 = ( pos_x + 0.5 * dx ) * ddx |
---|
492 | j3 = ( pos_y + 0.5 * dy ) * ddy |
---|
493 | k3 = pos_z / dz + offset_ocean_nzt_m1 |
---|
494 | |
---|
495 | i5 = pos_x * ddx |
---|
496 | j5 = pos_y * ddy |
---|
497 | k5 = pos_z / dz + offset_ocean_nzt_m1 |
---|
498 | |
---|
499 | IF ( k5 <= nzb_s_inner(j5,i3) .AND. & |
---|
500 | nzb_s_inner(j5,i3) /= 0 ) THEN |
---|
501 | |
---|
502 | IF ( pos_z == nzb_s_inner(j5,i3) * dz .AND. & |
---|
503 | k3 == nzb_s_inner(j5,i3) ) THEN |
---|
504 | reflect_z = .TRUE. |
---|
505 | EXIT case3 |
---|
506 | ENDIF |
---|
507 | |
---|
508 | ENDIF |
---|
509 | |
---|
510 | IF ( k3 <= nzb_s_inner(j3,i3) .AND. & |
---|
511 | nzb_s_inner(j3,i3) /= 0 ) THEN |
---|
512 | |
---|
513 | IF ( pos_z == nzb_s_inner(j3,i3) * dz .AND. & |
---|
514 | k3 == nzb_s_inner(j3,i3) ) THEN |
---|
515 | reflect_z = .TRUE. |
---|
516 | EXIT case3 |
---|
517 | ENDIF |
---|
518 | |
---|
519 | IF ( pos_y == ( j3 * dy - 0.5 * dy ) .AND. & |
---|
520 | pos_z < nzb_s_inner(j3,i3) * dz ) THEN |
---|
521 | reflect_y = .TRUE. |
---|
522 | EXIT case3 |
---|
523 | ENDIF |
---|
524 | |
---|
525 | ENDIF |
---|
526 | |
---|
527 | IF ( k5 <= nzb_s_inner(j3,i5) .AND. & |
---|
528 | nzb_s_inner(j3,i5) /= 0 ) THEN |
---|
529 | |
---|
530 | IF ( pos_z == nzb_s_inner(j3,i5) * dz .AND. & |
---|
531 | k3 == nzb_s_inner(j3,i5) ) THEN |
---|
532 | reflect_z = .TRUE. |
---|
533 | EXIT case3 |
---|
534 | ENDIF |
---|
535 | |
---|
536 | IF ( pos_x == ( i5 * dx + 0.5 * dx ) .AND. & |
---|
537 | pos_z < nzb_s_inner(j3,i5) * dz ) THEN |
---|
538 | reflect_x = .TRUE. |
---|
539 | EXIT case3 |
---|
540 | ENDIF |
---|
541 | |
---|
542 | ENDIF |
---|
543 | |
---|
544 | ENDDO case3 |
---|
545 | |
---|
546 | ! |
---|
547 | !-- Case 4 |
---|
548 | ELSEIF ( particles(n)%x < pos_x_old .AND. & |
---|
549 | particles(n)%y < pos_y_old ) THEN |
---|
550 | |
---|
551 | t_index = 1 |
---|
552 | |
---|
553 | DO i = i1, i2, -1 |
---|
554 | xline = i * dx - 0.5 * dx |
---|
555 | t(t_index) = ( pos_x_old - xline ) / & |
---|
556 | ( pos_x_old - particles(n)%x ) |
---|
557 | t_index = t_index + 1 |
---|
558 | ENDDO |
---|
559 | |
---|
560 | DO j = j1, j2, -1 |
---|
561 | yline = j * dy - 0.5 * dy |
---|
562 | t(t_index) = ( pos_y_old - yline ) / & |
---|
563 | ( pos_y_old - particles(n)%y ) |
---|
564 | t_index = t_index + 1 |
---|
565 | ENDDO |
---|
566 | |
---|
567 | IF ( particles(n)%z < pos_z_old ) THEN |
---|
568 | DO k = k1, k2 , -1 |
---|
569 | zline = k * dz |
---|
570 | t(t_index) = ( pos_z_old - zline ) / & |
---|
571 | ( pos_z_old-particles(n)%z ) |
---|
572 | t_index = t_index + 1 |
---|
573 | ENDDO |
---|
574 | ENDIF |
---|
575 | t_index_number = t_index-1 |
---|
576 | |
---|
577 | ! |
---|
578 | !-- Sorting t |
---|
579 | inc = 1 |
---|
580 | jr = 1 |
---|
581 | |
---|
582 | DO WHILE ( inc <= t_index_number ) |
---|
583 | inc = 3 * inc + 1 |
---|
584 | ENDDO |
---|
585 | |
---|
586 | DO WHILE ( inc > 1 ) |
---|
587 | inc = inc / 3 |
---|
588 | DO ir = inc+1, t_index_number |
---|
589 | tmp_t = t(ir) |
---|
590 | jr = ir |
---|
591 | DO WHILE ( t(jr-inc) > tmp_t ) |
---|
592 | t(jr) = t(jr-inc) |
---|
593 | jr = jr - inc |
---|
594 | IF ( jr <= inc ) EXIT |
---|
595 | ENDDO |
---|
596 | t(jr) = tmp_t |
---|
597 | ENDDO |
---|
598 | ENDDO |
---|
599 | |
---|
600 | case4: DO t_index = 1, t_index_number |
---|
601 | |
---|
602 | pos_x = pos_x_old + t(t_index) * ( prt_x - pos_x_old ) |
---|
603 | pos_y = pos_y_old + t(t_index) * ( prt_y - pos_y_old ) |
---|
604 | pos_z = pos_z_old + t(t_index) * ( prt_z - pos_z_old ) |
---|
605 | |
---|
606 | i3 = ( pos_x + 0.5 * dx ) * ddx |
---|
607 | j3 = ( pos_y + 0.5 * dy ) * ddy |
---|
608 | k3 = pos_z / dz + offset_ocean_nzt_m1 |
---|
609 | |
---|
610 | i5 = pos_x * ddx |
---|
611 | j5 = pos_y * ddy |
---|
612 | k5 = pos_z / dz + offset_ocean_nzt_m1 |
---|
613 | |
---|
614 | IF ( k3 <= nzb_s_inner(j3,i3) .AND. & |
---|
615 | nzb_s_inner(j3,i3) /= 0 ) THEN |
---|
616 | |
---|
617 | IF ( pos_z == nzb_s_inner(j3,i3) * dz .AND. & |
---|
618 | k3 == nzb_s_inner(j3,i3) ) THEN |
---|
619 | reflect_z = .TRUE. |
---|
620 | EXIT case4 |
---|
621 | ENDIF |
---|
622 | |
---|
623 | ENDIF |
---|
624 | |
---|
625 | IF ( k5 <= nzb_s_inner(j3,i5) .AND. & |
---|
626 | nzb_s_inner(j3,i5) /= 0 ) THEN |
---|
627 | |
---|
628 | IF ( pos_z == nzb_s_inner(j3,i5) * dz .AND. & |
---|
629 | k3 == nzb_s_inner(j3,i5) ) THEN |
---|
630 | reflect_z = .TRUE. |
---|
631 | EXIT case4 |
---|
632 | ENDIF |
---|
633 | |
---|
634 | IF ( pos_x == ( i5 * dx + 0.5 * dx ) .AND. & |
---|
635 | nzb_s_inner(j3,i5) /=0 .AND. & |
---|
636 | pos_z < nzb_s_inner(j3,i5) * dz ) THEN |
---|
637 | reflect_x = .TRUE. |
---|
638 | EXIT case4 |
---|
639 | ENDIF |
---|
640 | |
---|
641 | ENDIF |
---|
642 | |
---|
643 | IF ( k5 <= nzb_s_inner(j5,i3) .AND. & |
---|
644 | nzb_s_inner(j5,i3) /= 0 ) THEN |
---|
645 | |
---|
646 | IF ( pos_z == nzb_s_inner(j5,i3) * dz .AND. & |
---|
647 | k5 == nzb_s_inner(j5,i3) ) THEN |
---|
648 | reflect_z = .TRUE. |
---|
649 | EXIT case4 |
---|
650 | ENDIF |
---|
651 | |
---|
652 | IF ( pos_y == ( j5 * dy + 0.5 * dy ) .AND. & |
---|
653 | nzb_s_inner(j5,i3) /= 0 .AND. & |
---|
654 | pos_z < nzb_s_inner(j5,i3) * dz ) THEN |
---|
655 | reflect_y = .TRUE. |
---|
656 | EXIT case4 |
---|
657 | ENDIF |
---|
658 | |
---|
659 | ENDIF |
---|
660 | |
---|
661 | ENDDO case4 |
---|
662 | |
---|
663 | ENDIF |
---|
664 | |
---|
665 | ENDIF ! Check, if particle position is below the surface |
---|
666 | |
---|
667 | ! |
---|
668 | !-- Do the respective reflection, in case that one of the above conditions |
---|
669 | !-- is found to be true |
---|
670 | IF ( reflect_z ) THEN |
---|
671 | |
---|
672 | particles(n)%z = 2.0 * pos_z - prt_z |
---|
673 | particles(n)%speed_z = - particles(n)%speed_z |
---|
674 | |
---|
675 | IF ( use_sgs_for_particles ) THEN |
---|
676 | particles(n)%rvar3 = - particles(n)%rvar3 |
---|
677 | ENDIF |
---|
678 | reflect_z = .FALSE. |
---|
679 | |
---|
680 | ELSEIF ( reflect_y ) THEN |
---|
681 | |
---|
682 | particles(n)%y = 2.0 * pos_y - prt_y |
---|
683 | particles(n)%speed_y = - particles(n)%speed_y |
---|
684 | |
---|
685 | IF ( use_sgs_for_particles ) THEN |
---|
686 | particles(n)%rvar2 = - particles(n)%rvar2 |
---|
687 | ENDIF |
---|
688 | reflect_y = .FALSE. |
---|
689 | |
---|
690 | ELSEIF ( reflect_x ) THEN |
---|
691 | |
---|
692 | particles(n)%x = 2.0 * pos_x - prt_x |
---|
693 | particles(n)%speed_x = - particles(n)%speed_x |
---|
694 | |
---|
695 | IF ( use_sgs_for_particles ) THEN |
---|
696 | particles(n)%rvar1 = - particles(n)%rvar1 |
---|
697 | ENDIF |
---|
698 | reflect_x = .FALSE. |
---|
699 | |
---|
700 | ENDIF |
---|
701 | |
---|
702 | ENDDO |
---|
703 | |
---|
704 | CALL cpu_log( log_point_s(48), 'lpm_wall_reflect', 'stop' ) |
---|
705 | |
---|
706 | ENDIF |
---|
707 | |
---|
708 | END SUBROUTINE lpm_boundary_conds |
---|