[264] | 1 | SUBROUTINE set_particle_attributes |
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| 2 | |
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| 3 | !------------------------------------------------------------------------------! |
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| 4 | ! Actual 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 264 2009-03-21 08:14:44Z raasch $ |
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| 11 | ! |
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| 12 | ! Initial version (2009/03/21) |
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| 13 | ! |
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| 14 | ! Description: |
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| 15 | ! ------------ |
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| 16 | ! This routine sets certain particle attributes depending on the values that |
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| 17 | ! other PALM variables have at the current particle position. |
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| 18 | !------------------------------------------------------------------------------! |
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| 19 | |
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| 20 | USE arrays_3d |
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| 21 | USE control_parameters |
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| 22 | USE cpulog |
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| 23 | USE dvrp_variables |
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| 24 | USE grid_variables |
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| 25 | USE indices |
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| 26 | USE interfaces |
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| 27 | USE particle_attributes |
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| 28 | USE pegrid |
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| 29 | USE statistics |
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| 30 | |
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| 31 | IMPLICIT NONE |
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| 32 | |
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| 33 | INTEGER :: i, j, k, n |
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| 34 | REAL :: aa, bb, cc, dd, gg, pt_int, pt_int_l, pt_int_u, w_int, & |
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| 35 | w_int_l, w_int_u, x, y |
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| 36 | |
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| 37 | |
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| 38 | CALL cpu_log( log_point_s(49), 'set_particle_attributes', 'start' ) |
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| 39 | |
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| 40 | ! |
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| 41 | !-- Set particle color |
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| 42 | IF ( particle_color == 'absuv' ) THEN |
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| 43 | |
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| 44 | ELSEIF ( particle_color == 'pt*' ) THEN |
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| 45 | ! |
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| 46 | !-- Set particle color depending on the resolved scale temperature |
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| 47 | !-- fluctuation. |
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| 48 | !-- First, calculate the horizontal average of the potential temperature |
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| 49 | !-- (This is also done in flow_statistics, but flow_statistics is called |
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| 50 | !-- after this routine.) |
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| 51 | sums_l(:,4,0) = 0.0 |
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| 52 | DO i = nxl, nxr |
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| 53 | DO j = nys, nyn |
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| 54 | DO k = nzb, nzt+1 |
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| 55 | sums_l(k,4,0) = sums_l(k,4,0) + pt(k,j,i) |
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| 56 | ENDDO |
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| 57 | ENDDO |
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| 58 | ENDDO |
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| 59 | |
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| 60 | #if defined( __parallel ) |
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| 61 | |
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| 62 | CALL MPI_ALLREDUCE( sums_l(nzb,4,0), sums(nzb,4), nzt+2-nzb, & |
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| 63 | MPI_REAL, MPI_SUM, comm2d, ierr ) |
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| 64 | |
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| 65 | #else |
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| 66 | |
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| 67 | sums(:,4) = sums_l(:,4,0) |
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| 68 | |
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| 69 | #endif |
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| 70 | |
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| 71 | sums(:,4) = sums(:,4) / ngp_2dh(0) |
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| 72 | |
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| 73 | DO n = 1, number_of_particles |
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| 74 | ! |
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| 75 | !-- Interpolate temperature to the current particle position |
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| 76 | i = particles(n)%x * ddx |
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| 77 | j = particles(n)%y * ddy |
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| 78 | k = ( particles(n)%z + 0.5 * dz * atmos_ocean_sign ) / dz & |
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| 79 | + offset_ocean_nzt ! only exact if equidistant |
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| 80 | |
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| 81 | x = particles(n)%x - i * dx |
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| 82 | y = particles(n)%y - j * dy |
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| 83 | aa = x**2 + y**2 |
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| 84 | bb = ( dx - x )**2 + y**2 |
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| 85 | cc = x**2 + ( dy - y )**2 |
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| 86 | dd = ( dx - x )**2 + ( dy - y )**2 |
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| 87 | gg = aa + bb + cc + dd |
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| 88 | |
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| 89 | pt_int_l = ( ( gg - aa ) * pt(k,j,i) + ( gg - bb ) * pt(k,j,i+1) & |
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| 90 | + ( gg - cc ) * pt(k,j+1,i) + ( gg - dd ) * pt(k,j+1,i+1) & |
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| 91 | ) / ( 3.0 * gg ) - sums(k,4) |
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| 92 | |
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| 93 | pt_int_u = ( ( gg-aa ) * pt(k+1,j,i) + ( gg-bb ) * pt(k+1,j,i+1) & |
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| 94 | + ( gg-cc ) * pt(k+1,j+1,i) + ( gg-dd ) * pt(k+1,j+1,i+1) & |
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| 95 | ) / ( 3.0 * gg ) - sums(k,4) |
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| 96 | |
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| 97 | pt_int = pt_int_l + ( particles(n)%z - zu(k) ) / dz * & |
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| 98 | ( pt_int_u - pt_int_l ) |
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| 99 | |
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| 100 | ! |
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| 101 | !-- Limit values by the given interval and normalize to interval [0,1] |
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| 102 | pt_int = MIN( pt_int, color_interval(2) ) |
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| 103 | pt_int = MAX( pt_int, color_interval(1) ) |
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| 104 | |
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| 105 | pt_int = ( pt_int - color_interval(1) ) / & |
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| 106 | ( color_interval(2) - color_interval(1) ) |
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| 107 | |
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| 108 | ! |
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| 109 | !-- Number of available colors is defined in init_dvrp |
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| 110 | particles(n)%color = 1 + pt_int * ( dvrp_colortable_entries_prt - 1 ) |
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| 111 | |
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| 112 | ENDDO |
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| 113 | |
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| 114 | ELSEIF ( particle_color == 'z' ) THEN |
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| 115 | |
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| 116 | ENDIF |
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| 117 | |
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| 118 | ! |
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| 119 | !-- Set particle size for dvrp graphics |
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| 120 | IF ( particle_dvrpsize == 'absw' ) THEN |
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| 121 | |
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| 122 | DO n = 1, number_of_particles |
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| 123 | ! |
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| 124 | !-- Interpolate w-component to the current particle position |
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| 125 | i = particles(n)%x * ddx |
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| 126 | j = particles(n)%y * ddy |
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| 127 | k = particles(n)%z / dz |
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| 128 | |
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| 129 | x = particles(n)%x - i * dx |
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| 130 | y = particles(n)%y - j * dy |
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| 131 | aa = x**2 + y**2 |
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| 132 | bb = ( dx - x )**2 + y**2 |
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| 133 | cc = x**2 + ( dy - y )**2 |
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| 134 | dd = ( dx - x )**2 + ( dy - y )**2 |
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| 135 | gg = aa + bb + cc + dd |
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| 136 | |
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| 137 | w_int_l = ( ( gg - aa ) * w(k,j,i) + ( gg - bb ) * w(k,j,i+1) & |
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| 138 | + ( gg - cc ) * w(k,j+1,i) + ( gg - dd ) * w(k,j+1,i+1) & |
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| 139 | ) / ( 3.0 * gg ) |
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| 140 | |
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| 141 | IF ( k+1 == nzt+1 ) THEN |
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| 142 | w_int = w_int_l |
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| 143 | ELSE |
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| 144 | w_int_u = ( ( gg-aa ) * w(k+1,j,i) + ( gg-bb ) * w(k+1,j,i+1) & |
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| 145 | + ( gg-cc ) * w(k+1,j+1,i) + ( gg-dd ) * w(k+1,j+1,i+1) & |
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| 146 | ) / ( 3.0 * gg ) |
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| 147 | w_int = w_int_l + ( particles(n)%z - zw(k) ) / dz * & |
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| 148 | ( w_int_u - w_int_l ) |
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| 149 | ENDIF |
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| 150 | |
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| 151 | particles(n)%dvrp_psize = ( 0.2 + MIN( 0.6, ABS( w_int ) / 6.0 ) ) * & |
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| 152 | dx * 1.4 |
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| 153 | |
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| 154 | ENDDO |
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| 155 | |
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| 156 | ENDIF |
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| 157 | |
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| 158 | CALL cpu_log( log_point_s(49), 'set_particle_attributes', 'stop' ) |
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| 159 | |
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| 160 | |
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| 161 | END SUBROUTINE set_particle_attributes |
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