1 | SUBROUTINE inflow_turbulence |
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2 | |
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3 | !------------------------------------------------------------------------------! |
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4 | ! Current revisions: |
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5 | ! ----------------- |
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6 | ! |
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7 | ! |
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8 | ! Former revisions: |
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9 | ! ----------------- |
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10 | ! $Id: inflow_turbulence.f90 710 2011-03-30 09:45:27Z suehring $ |
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11 | ! |
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12 | ! 709 2011-03-30 09:31:40Z raasch |
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13 | ! formatting adjustments |
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14 | ! |
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15 | ! 667 2010-12-23 12:06:00Z suehring/gryschka |
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16 | ! Using nbgp recycling planes for a better resolution of the turbulent flow |
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17 | ! near the inflow. |
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18 | ! |
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19 | ! 622 2010-12-10 08:08:13Z raasch |
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20 | ! optional barriers included in order to speed up collective operations |
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21 | ! |
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22 | ! 222 2009-01-12 16:04:16Z letzel |
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23 | ! Bugfix for nonparallel execution |
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24 | ! |
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25 | ! Initial version (2008/03/07) |
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26 | ! |
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27 | ! Description: |
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28 | ! ------------ |
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29 | ! Imposing turbulence at the respective inflow using the turbulence |
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30 | ! recycling method of Kataoka and Mizuno (2002). |
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31 | !------------------------------------------------------------------------------! |
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32 | |
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33 | USE arrays_3d |
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34 | USE control_parameters |
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35 | USE cpulog |
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36 | USE grid_variables |
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37 | USE indices |
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38 | USE interfaces |
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39 | USE pegrid |
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40 | |
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41 | |
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42 | IMPLICIT NONE |
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43 | |
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44 | INTEGER :: i, imax, j, k, l, ngp_ifd, ngp_pr |
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45 | |
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46 | REAL, DIMENSION(1:2) :: volume_flow_l, volume_flow_offset |
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47 | REAL, DIMENSION(nzb:nzt+1,5,nbgp) :: avpr, avpr_l |
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48 | REAL, DIMENSION(nzb:nzt+1,nysg:nyng,5,nbgp) :: inflow_dist |
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49 | |
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50 | CALL cpu_log( log_point(40), 'inflow_turbulence', 'start' ) |
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51 | |
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52 | ! |
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53 | !-- Carry out spanwise averaging in the recycling plane |
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54 | avpr_l = 0.0 |
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55 | ngp_pr = ( nzt - nzb + 2 ) * 5 * nbgp |
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56 | ngp_ifd = ngp_pr * ( nyn - nys + 1 + 2 * nbgp ) |
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57 | |
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58 | ! |
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59 | !-- First, local averaging within the recycling domain |
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60 | i = recycling_plane |
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61 | |
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62 | #if defined( __parallel ) |
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63 | IF ( myidx == id_recycling ) THEN |
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64 | |
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65 | DO l = 1, nbgp |
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66 | DO j = nys, nyn |
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67 | DO k = nzb, nzt + 1 |
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68 | |
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69 | avpr_l(k,1,l) = avpr_l(k,1,l) + u(k,j,i) |
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70 | avpr_l(k,2,l) = avpr_l(k,2,l) + v(k,j,i) |
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71 | avpr_l(k,3,l) = avpr_l(k,3,l) + w(k,j,i) |
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72 | avpr_l(k,4,l) = avpr_l(k,4,l) + pt(k,j,i) |
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73 | avpr_l(k,5,l) = avpr_l(k,5,l) + e(k,j,i) |
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74 | |
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75 | ENDDO |
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76 | ENDDO |
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77 | i = i + 1 |
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78 | ENDDO |
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79 | |
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80 | ENDIF |
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81 | ! |
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82 | !-- Now, averaging over all PEs |
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83 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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84 | CALL MPI_ALLREDUCE( avpr_l(nzb,1,1), avpr(nzb,1,1), ngp_pr, MPI_REAL, & |
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85 | MPI_SUM, comm2d, ierr ) |
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86 | |
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87 | #else |
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88 | DO l = 1, nbgp |
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89 | DO j = nys, nyn |
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90 | DO k = nzb, nzt + 1 |
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91 | |
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92 | avpr_l(k,1,l) = avpr_l(k,1,l) + u(k,j,i) |
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93 | avpr_l(k,2,l) = avpr_l(k,2,l) + v(k,j,i) |
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94 | avpr_l(k,3,l) = avpr_l(k,3,l) + w(k,j,i) |
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95 | avpr_l(k,4,l) = avpr_l(k,4,l) + pt(k,j,i) |
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96 | avpr_l(k,5,l) = avpr_l(k,5,l) + e(k,j,i) |
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97 | |
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98 | ENDDO |
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99 | ENDDO |
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100 | i = i + 1 |
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101 | ENDDO |
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102 | |
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103 | avpr = avpr_l |
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104 | #endif |
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105 | |
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106 | avpr = avpr / ( ny + 1 ) |
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107 | ! |
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108 | !-- Calculate the disturbances at the recycling plane |
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109 | i = recycling_plane |
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110 | |
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111 | #if defined( __parallel ) |
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112 | IF ( myidx == id_recycling ) THEN |
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113 | DO l = 1, nbgp |
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114 | DO j = nysg, nyng |
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115 | DO k = nzb, nzt + 1 |
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116 | |
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117 | inflow_dist(k,j,1,l) = u(k,j,i+1) - avpr(k,1,l) |
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118 | inflow_dist(k,j,2,l) = v(k,j,i) - avpr(k,2,l) |
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119 | inflow_dist(k,j,3,l) = w(k,j,i) - avpr(k,3,l) |
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120 | inflow_dist(k,j,4,l) = pt(k,j,i) - avpr(k,4,l) |
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121 | inflow_dist(k,j,5,l) = e(k,j,i) - avpr(k,5,l) |
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122 | |
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123 | ENDDO |
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124 | ENDDO |
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125 | i = i + 1 |
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126 | ENDDO |
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127 | |
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128 | ENDIF |
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129 | #else |
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130 | DO l = 1, nbgp |
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131 | DO j = nysg, nyng |
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132 | DO k = nzb, nzt+1 |
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133 | |
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134 | inflow_dist(k,j,1,l) = u(k,j,i+1) - avpr(k,1,l) |
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135 | inflow_dist(k,j,2,l) = v(k,j,i) - avpr(k,2,l) |
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136 | inflow_dist(k,j,3,l) = w(k,j,i) - avpr(k,3,l) |
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137 | inflow_dist(k,j,4,l) = pt(k,j,i) - avpr(k,4,l) |
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138 | inflow_dist(k,j,5,l) = e(k,j,i) - avpr(k,5,l) |
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139 | |
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140 | ENDDO |
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141 | ENDDO |
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142 | i = i + 1 |
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143 | ENDDO |
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144 | #endif |
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145 | |
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146 | ! |
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147 | !-- For parallel runs, send the disturbances to the respective inflow PE |
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148 | #if defined( __parallel ) |
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149 | IF ( myidx == id_recycling .AND. myidx /= id_inflow ) THEN |
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150 | |
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151 | CALL MPI_SEND( inflow_dist(nzb,nysg,1,1), ngp_ifd, MPI_REAL, & |
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152 | id_inflow, 1, comm1dx, ierr ) |
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153 | |
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154 | ELSEIF ( myidx /= id_recycling .AND. myidx == id_inflow ) THEN |
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155 | |
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156 | inflow_dist = 0.0 |
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157 | CALL MPI_RECV( inflow_dist(nzb,nysg,1,1), ngp_ifd, MPI_REAL, & |
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158 | id_recycling, 1, comm1dx, status, ierr ) |
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159 | |
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160 | ENDIF |
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161 | #endif |
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162 | |
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163 | ! |
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164 | !-- Add the disturbance at the inflow |
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165 | IF ( nxl == 0 ) THEN |
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166 | |
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167 | DO j = nysg, nyng |
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168 | DO k = nzb, nzt + 1 |
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169 | |
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170 | u(k,j,-nbgp+1:0) = mean_inflow_profiles(k,1) + & |
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171 | inflow_dist(k,j,1,1:nbgp) * inflow_damping_factor(k) |
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172 | v(k,j,-nbgp:-1) = mean_inflow_profiles(k,2) + & |
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173 | inflow_dist(k,j,2,1:nbgp) * inflow_damping_factor(k) |
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174 | w(k,j,-nbgp:-1) = & |
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175 | inflow_dist(k,j,3,1:nbgp) * inflow_damping_factor(k) |
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176 | pt(k,j,-nbgp:-1) = mean_inflow_profiles(k,4) + & |
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177 | inflow_dist(k,j,4,1:nbgp) * inflow_damping_factor(k) |
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178 | e(k,j,-nbgp:-1) = mean_inflow_profiles(k,5) + & |
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179 | inflow_dist(k,j,5,1:nbgp) * inflow_damping_factor(k) |
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180 | e(k,j,-nbgp:-1) = MAX( e(k,j,-nbgp:-1), 0.0 ) |
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181 | |
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182 | ENDDO |
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183 | ENDDO |
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184 | |
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185 | ENDIF |
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186 | |
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187 | CALL cpu_log( log_point(40), 'inflow_turbulence', 'stop' ) |
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188 | |
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189 | |
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190 | END SUBROUTINE inflow_turbulence |
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