1 | SUBROUTINE set_particle_attributes |
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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: set_particle_attributes.f90 623 2010-12-10 08:52:17Z fricke $ |
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11 | ! |
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12 | ! 622 2010-12-10 08:08:13Z raasch |
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13 | ! optional barriers included in order to speed up collective operations |
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14 | ! |
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15 | ! 271 2009-03-26 00:47:14Z raasch |
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16 | ! Initial version |
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17 | ! |
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18 | ! Description: |
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19 | ! ------------ |
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20 | ! This routine sets certain particle attributes depending on the values that |
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21 | ! other PALM variables have at the current particle position. |
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22 | !------------------------------------------------------------------------------! |
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23 | |
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24 | USE arrays_3d |
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25 | USE control_parameters |
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26 | USE cpulog |
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27 | USE dvrp_variables |
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28 | USE grid_variables |
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29 | USE indices |
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30 | USE interfaces |
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31 | USE particle_attributes |
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32 | USE pegrid |
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33 | USE statistics |
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34 | |
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35 | IMPLICIT NONE |
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36 | |
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37 | INTEGER :: i, j, k, n |
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38 | REAL :: aa, absuv, bb, cc, dd, gg, height, pt_int, pt_int_l, pt_int_u, & |
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39 | u_int, u_int_l, u_int_u, v_int, v_int_l, v_int_u, w_int, & |
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40 | w_int_l, w_int_u, x, y |
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41 | |
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42 | |
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43 | CALL cpu_log( log_point_s(49), 'set_particle_attrib', 'start' ) |
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44 | |
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45 | ! |
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46 | !-- Set particle color |
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47 | IF ( particle_color == 'absuv' ) THEN |
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48 | |
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49 | ! |
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50 | !-- Set particle color depending on the absolute value of the horizontal |
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51 | !-- velocity |
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52 | DO n = 1, number_of_particles |
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53 | ! |
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54 | !-- Interpolate u velocity-component, determine left, front, bottom |
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55 | !-- index of u-array |
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56 | i = ( particles(n)%x + 0.5 * dx ) * ddx |
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57 | j = particles(n)%y * ddy |
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58 | k = ( particles(n)%z + 0.5 * dz * atmos_ocean_sign ) / dz & |
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59 | + offset_ocean_nzt ! only exact if equidistant |
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60 | |
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61 | ! |
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62 | !-- Interpolation of the velocity components in the xy-plane |
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63 | x = particles(n)%x + ( 0.5 - i ) * dx |
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64 | y = particles(n)%y - j * dy |
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65 | aa = x**2 + y**2 |
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66 | bb = ( dx - x )**2 + y**2 |
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67 | cc = x**2 + ( dy - y )**2 |
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68 | dd = ( dx - x )**2 + ( dy - y )**2 |
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69 | gg = aa + bb + cc + dd |
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70 | |
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71 | u_int_l = ( ( gg - aa ) * u(k,j,i) + ( gg - bb ) * u(k,j,i+1) & |
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72 | + ( gg - cc ) * u(k,j+1,i) + ( gg - dd ) * u(k,j+1,i+1) & |
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73 | ) / ( 3.0 * gg ) - u_gtrans |
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74 | IF ( k+1 == nzt+1 ) THEN |
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75 | u_int = u_int_l |
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76 | ELSE |
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77 | u_int_u = ( ( gg-aa ) * u(k+1,j,i) + ( gg-bb ) * u(k+1,j,i+1) & |
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78 | + ( gg-cc ) * u(k+1,j+1,i) + ( gg-dd ) * u(k+1,j+1,i+1) & |
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79 | ) / ( 3.0 * gg ) - u_gtrans |
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80 | u_int = u_int_l + ( particles(n)%z - zu(k) ) / dz * & |
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81 | ( u_int_u - u_int_l ) |
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82 | ENDIF |
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83 | |
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84 | ! |
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85 | !-- Same procedure for interpolation of the v velocity-component (adopt |
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86 | !-- index k from u velocity-component) |
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87 | i = particles(n)%x * ddx |
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88 | j = ( particles(n)%y + 0.5 * dy ) * ddy |
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89 | |
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90 | x = particles(n)%x - i * dx |
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91 | y = particles(n)%y + ( 0.5 - j ) * dy |
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92 | aa = x**2 + y**2 |
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93 | bb = ( dx - x )**2 + y**2 |
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94 | cc = x**2 + ( dy - y )**2 |
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95 | dd = ( dx - x )**2 + ( dy - y )**2 |
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96 | gg = aa + bb + cc + dd |
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97 | |
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98 | v_int_l = ( ( gg - aa ) * v(k,j,i) + ( gg - bb ) * v(k,j,i+1) & |
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99 | + ( gg - cc ) * v(k,j+1,i) + ( gg - dd ) * v(k,j+1,i+1) & |
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100 | ) / ( 3.0 * gg ) - v_gtrans |
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101 | IF ( k+1 == nzt+1 ) THEN |
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102 | v_int = v_int_l |
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103 | ELSE |
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104 | v_int_u = ( ( gg-aa ) * v(k+1,j,i) + ( gg-bb ) * v(k+1,j,i+1) & |
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105 | + ( gg-cc ) * v(k+1,j+1,i) + ( gg-dd ) * v(k+1,j+1,i+1) & |
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106 | ) / ( 3.0 * gg ) - v_gtrans |
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107 | v_int = v_int_l + ( particles(n)%z - zu(k) ) / dz * & |
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108 | ( v_int_u - v_int_l ) |
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109 | ENDIF |
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110 | |
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111 | absuv = SQRT( u_int**2 + v_int**2 ) |
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112 | |
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113 | ! |
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114 | !-- Limit values by the given interval and normalize to interval [0,1] |
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115 | absuv = MIN( absuv, color_interval(2) ) |
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116 | absuv = MAX( absuv, color_interval(1) ) |
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117 | |
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118 | absuv = ( absuv - color_interval(1) ) / & |
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119 | ( color_interval(2) - color_interval(1) ) |
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120 | |
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121 | ! |
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122 | !-- Number of available colors is defined in init_dvrp |
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123 | particles(n)%color = 1 + absuv * ( dvrp_colortable_entries_prt - 1 ) |
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124 | |
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125 | ENDDO |
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126 | |
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127 | ELSEIF ( particle_color == 'pt*' ) THEN |
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128 | ! |
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129 | !-- Set particle color depending on the resolved scale temperature |
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130 | !-- fluctuation. |
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131 | !-- First, calculate the horizontal average of the potential temperature |
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132 | !-- (This is also done in flow_statistics, but flow_statistics is called |
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133 | !-- after this routine.) |
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134 | sums_l(:,4,0) = 0.0 |
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135 | DO i = nxl, nxr |
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136 | DO j = nys, nyn |
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137 | DO k = nzb, nzt+1 |
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138 | sums_l(k,4,0) = sums_l(k,4,0) + pt(k,j,i) |
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139 | ENDDO |
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140 | ENDDO |
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141 | ENDDO |
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142 | |
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143 | #if defined( __parallel ) |
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144 | |
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145 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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146 | CALL MPI_ALLREDUCE( sums_l(nzb,4,0), sums(nzb,4), nzt+2-nzb, & |
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147 | MPI_REAL, MPI_SUM, comm2d, ierr ) |
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148 | |
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149 | #else |
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150 | |
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151 | sums(:,4) = sums_l(:,4,0) |
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152 | |
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153 | #endif |
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154 | |
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155 | sums(:,4) = sums(:,4) / ngp_2dh(0) |
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156 | |
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157 | DO n = 1, number_of_particles |
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158 | ! |
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159 | !-- Interpolate temperature to the current particle position |
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160 | i = particles(n)%x * ddx |
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161 | j = particles(n)%y * ddy |
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162 | k = ( particles(n)%z + 0.5 * dz * atmos_ocean_sign ) / dz & |
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163 | + offset_ocean_nzt ! only exact if equidistant |
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164 | |
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165 | x = particles(n)%x - i * dx |
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166 | y = particles(n)%y - j * dy |
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167 | aa = x**2 + y**2 |
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168 | bb = ( dx - x )**2 + y**2 |
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169 | cc = x**2 + ( dy - y )**2 |
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170 | dd = ( dx - x )**2 + ( dy - y )**2 |
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171 | gg = aa + bb + cc + dd |
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172 | |
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173 | pt_int_l = ( ( gg - aa ) * pt(k,j,i) + ( gg - bb ) * pt(k,j,i+1) & |
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174 | + ( gg - cc ) * pt(k,j+1,i) + ( gg - dd ) * pt(k,j+1,i+1) & |
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175 | ) / ( 3.0 * gg ) - sums(k,4) |
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176 | |
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177 | pt_int_u = ( ( gg-aa ) * pt(k+1,j,i) + ( gg-bb ) * pt(k+1,j,i+1) & |
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178 | + ( gg-cc ) * pt(k+1,j+1,i) + ( gg-dd ) * pt(k+1,j+1,i+1) & |
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179 | ) / ( 3.0 * gg ) - sums(k,4) |
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180 | |
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181 | pt_int = pt_int_l + ( particles(n)%z - zu(k) ) / dz * & |
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182 | ( pt_int_u - pt_int_l ) |
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183 | |
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184 | ! |
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185 | !-- Limit values by the given interval and normalize to interval [0,1] |
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186 | pt_int = MIN( pt_int, color_interval(2) ) |
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187 | pt_int = MAX( pt_int, color_interval(1) ) |
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188 | |
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189 | pt_int = ( pt_int - color_interval(1) ) / & |
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190 | ( color_interval(2) - color_interval(1) ) |
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191 | |
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192 | ! |
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193 | !-- Number of available colors is defined in init_dvrp |
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194 | particles(n)%color = 1 + pt_int * ( dvrp_colortable_entries_prt - 1 ) |
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195 | |
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196 | ENDDO |
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197 | |
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198 | ELSEIF ( particle_color == 'z' ) THEN |
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199 | ! |
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200 | !-- Set particle color depending on the height above the bottom |
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201 | !-- boundary (z=0) |
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202 | DO n = 1, number_of_particles |
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203 | |
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204 | height = particles(n)%z |
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205 | ! |
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206 | !-- Limit values by the given interval and normalize to interval [0,1] |
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207 | height = MIN( height, color_interval(2) ) |
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208 | height = MAX( height, color_interval(1) ) |
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209 | |
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210 | height = ( height - color_interval(1) ) / & |
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211 | ( color_interval(2) - color_interval(1) ) |
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212 | |
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213 | ! |
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214 | !-- Number of available colors is defined in init_dvrp |
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215 | particles(n)%color = 1 + height * ( dvrp_colortable_entries_prt - 1 ) |
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216 | |
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217 | ENDDO |
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218 | |
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219 | ENDIF |
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220 | |
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221 | ! |
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222 | !-- Set particle size for dvrp graphics |
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223 | IF ( particle_dvrpsize == 'absw' ) THEN |
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224 | |
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225 | DO n = 1, number_of_particles |
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226 | ! |
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227 | !-- Interpolate w-component to the current particle position |
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228 | i = particles(n)%x * ddx |
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229 | j = particles(n)%y * ddy |
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230 | k = particles(n)%z / dz |
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231 | |
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232 | x = particles(n)%x - i * dx |
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233 | y = particles(n)%y - j * dy |
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234 | aa = x**2 + y**2 |
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235 | bb = ( dx - x )**2 + y**2 |
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236 | cc = x**2 + ( dy - y )**2 |
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237 | dd = ( dx - x )**2 + ( dy - y )**2 |
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238 | gg = aa + bb + cc + dd |
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239 | |
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240 | w_int_l = ( ( gg - aa ) * w(k,j,i) + ( gg - bb ) * w(k,j,i+1) & |
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241 | + ( gg - cc ) * w(k,j+1,i) + ( gg - dd ) * w(k,j+1,i+1) & |
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242 | ) / ( 3.0 * gg ) |
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243 | |
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244 | IF ( k+1 == nzt+1 ) THEN |
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245 | w_int = w_int_l |
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246 | ELSE |
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247 | w_int_u = ( ( gg-aa ) * w(k+1,j,i) + ( gg-bb ) * w(k+1,j,i+1) & |
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248 | + ( gg-cc ) * w(k+1,j+1,i) + ( gg-dd ) * w(k+1,j+1,i+1) & |
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249 | ) / ( 3.0 * gg ) |
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250 | w_int = w_int_l + ( particles(n)%z - zw(k) ) / dz * & |
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251 | ( w_int_u - w_int_l ) |
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252 | ENDIF |
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253 | |
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254 | ! |
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255 | !-- Limit values by the given interval and normalize to interval [0,1] |
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256 | w_int = ABS( w_int ) |
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257 | w_int = MIN( w_int, dvrpsize_interval(2) ) |
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258 | w_int = MAX( w_int, dvrpsize_interval(1) ) |
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259 | |
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260 | w_int = ( w_int - dvrpsize_interval(1) ) / & |
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261 | ( dvrpsize_interval(2) - dvrpsize_interval(1) ) |
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262 | |
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263 | particles(n)%dvrp_psize = ( 0.25 + w_int * 0.6 ) * dx |
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264 | |
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265 | ENDDO |
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266 | |
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267 | ENDIF |
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268 | |
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269 | CALL cpu_log( log_point_s(49), 'set_particle_attrib', 'stop' ) |
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270 | |
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271 | |
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272 | END SUBROUTINE set_particle_attributes |
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