| 1 | MODULE diffusion_e_mod |
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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 1997-2014 Leibniz Universitaet 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: diffusion_e.f90 1321 2014-03-20 09:40:40Z maronga $ |
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| 27 | ! |
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| 28 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 29 | ! ONLY-attribute added to USE-statements, |
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| 30 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 31 | ! kinds are defined in new module kinds, |
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| 32 | ! revision history before 2012 removed, |
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| 33 | ! comment fields (!:) to be used for variable explanations added to |
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| 34 | ! all variable declaration statements |
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| 35 | ! |
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| 36 | ! 1257 2013-11-08 15:18:40Z raasch |
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| 37 | ! openacc loop and loop vector clauses removed |
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| 38 | ! |
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| 39 | ! 1179 2013-06-14 05:57:58Z raasch |
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| 40 | ! use_reference renamed use_single_reference_value |
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| 41 | ! |
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| 42 | ! 1171 2013-05-30 11:27:45Z raasch |
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| 43 | ! use_reference-case activated in accelerator version |
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| 44 | ! |
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| 45 | ! 1128 2013-04-12 06:19:32Z raasch |
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| 46 | ! loop index bounds in accelerator version replaced by i_left, i_right, j_south, |
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| 47 | ! j_north |
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| 48 | ! |
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| 49 | ! 1065 2012-11-22 17:42:36Z hoffmann |
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| 50 | ! Enabled the claculation of diss in case of turbulence = .TRUE. (parameterized |
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| 51 | ! effects of turbulence on autoconversion and accretion in two-moments cloud |
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| 52 | ! physics scheme). |
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| 53 | ! |
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| 54 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 55 | ! code put under GPL (PALM 3.9) |
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| 56 | ! |
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| 57 | ! 1015 2012-09-27 09:23:24Z raasch |
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| 58 | ! accelerator version (*_acc) added, |
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| 59 | ! adjustment of mixing length to the Prandtl mixing length at first grid point |
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| 60 | ! above ground removed |
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| 61 | ! |
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| 62 | ! 1010 2012-09-20 07:59:54Z raasch |
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| 63 | ! cpp switch __nopointer added for pointer free version |
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| 64 | ! |
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| 65 | ! 1001 2012-09-13 14:08:46Z raasch |
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| 66 | ! most arrays comunicated by module instead of parameter list |
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| 67 | ! |
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| 68 | ! 825 2012-02-19 03:03:44Z raasch |
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| 69 | ! wang_collision_kernel renamed wang_kernel |
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| 70 | ! |
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| 71 | ! Revision 1.1 1997/09/19 07:40:24 raasch |
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| 72 | ! Initial revision |
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| 73 | ! |
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| 74 | ! |
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| 75 | ! Description: |
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| 76 | ! ------------ |
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| 77 | ! Diffusion- and dissipation terms for the TKE |
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| 78 | !------------------------------------------------------------------------------! |
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| 79 | |
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| 80 | PRIVATE |
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| 81 | PUBLIC diffusion_e, diffusion_e_acc |
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| 82 | |
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| 83 | |
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| 84 | INTERFACE diffusion_e |
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| 85 | MODULE PROCEDURE diffusion_e |
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| 86 | MODULE PROCEDURE diffusion_e_ij |
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| 87 | END INTERFACE diffusion_e |
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| 88 | |
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| 89 | INTERFACE diffusion_e_acc |
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| 90 | MODULE PROCEDURE diffusion_e_acc |
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| 91 | END INTERFACE diffusion_e_acc |
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| 92 | |
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| 93 | CONTAINS |
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| 94 | |
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| 95 | |
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| 96 | !------------------------------------------------------------------------------! |
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| 97 | ! Call for all grid points |
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| 98 | !------------------------------------------------------------------------------! |
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| 99 | SUBROUTINE diffusion_e( var, var_reference ) |
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| 100 | |
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| 101 | USE arrays_3d, & |
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| 102 | ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw |
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| 103 | |
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| 104 | USE control_parameters, & |
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| 105 | ONLY: atmos_ocean_sign, g, turbulence, use_single_reference_value, & |
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| 106 | wall_adjustment, wall_adjustment_factor |
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| 107 | |
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| 108 | USE grid_variables, & |
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| 109 | ONLY: ddx2, ddy2 |
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| 110 | |
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| 111 | USE indices, & |
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| 112 | ONLY: nxl, nxr, nyn, nys, nzb, nzb_s_inner, nzt |
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| 113 | |
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| 114 | USE kinds |
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| 115 | |
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| 116 | USE particle_attributes, & |
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| 117 | ONLY: use_sgs_for_particles, wang_kernel |
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| 118 | |
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| 119 | IMPLICIT NONE |
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| 120 | |
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| 121 | INTEGER(iwp) :: i !: |
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| 122 | INTEGER(iwp) :: j !: |
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| 123 | INTEGER(iwp) :: k !: |
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| 124 | REAL(wp) :: dvar_dz !: |
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| 125 | REAL(wp) :: l_stable !: |
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| 126 | REAL(wp) :: var_reference !: |
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| 127 | |
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| 128 | #if defined( __nopointer ) |
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| 129 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !: |
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| 130 | #else |
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| 131 | REAL(wp), DIMENSION(:,:,:), POINTER :: var !: |
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| 132 | #endif |
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| 133 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: dissipation !: |
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| 134 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: l !: |
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| 135 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: ll !: |
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| 136 | |
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| 137 | |
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| 138 | ! |
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| 139 | !-- This if clause must be outside the k-loop because otherwise |
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| 140 | !-- runtime errors occur with -C hopt on NEC |
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| 141 | IF ( use_single_reference_value ) THEN |
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| 142 | |
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| 143 | DO i = nxl, nxr |
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| 144 | DO j = nys, nyn |
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| 145 | DO k = nzb_s_inner(j,i)+1, nzt |
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| 146 | ! |
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| 147 | !-- Calculate the mixing length (for dissipation) |
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| 148 | dvar_dz = atmos_ocean_sign * & |
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| 149 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
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| 150 | IF ( dvar_dz > 0.0 ) THEN |
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| 151 | l_stable = 0.76 * SQRT( e(k,j,i) ) / & |
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| 152 | SQRT( g / var_reference * dvar_dz ) + 1E-5 |
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| 153 | ELSE |
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| 154 | l_stable = l_grid(k) |
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| 155 | ENDIF |
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| 156 | ! |
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| 157 | !-- Adjustment of the mixing length |
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| 158 | IF ( wall_adjustment ) THEN |
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| 159 | l(k,j) = MIN( wall_adjustment_factor * & |
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| 160 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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| 161 | l_grid(k), l_stable ) |
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| 162 | ll(k,j) = MIN( wall_adjustment_factor * & |
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| 163 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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| 164 | l_grid(k) ) |
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| 165 | ELSE |
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| 166 | l(k,j) = MIN( l_grid(k), l_stable ) |
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| 167 | ll(k,j) = l_grid(k) |
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| 168 | ENDIF |
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| 169 | |
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| 170 | ENDDO |
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| 171 | ENDDO |
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| 172 | |
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| 173 | ! |
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| 174 | !-- Calculate the tendency terms |
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| 175 | DO j = nys, nyn |
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| 176 | DO k = nzb_s_inner(j,i)+1, nzt |
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| 177 | |
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| 178 | dissipation(k,j) = ( 0.19 + 0.74 * l(k,j) / ll(k,j) ) * & |
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| 179 | e(k,j,i) * SQRT( e(k,j,i) ) / l(k,j) |
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| 180 | |
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| 181 | tend(k,j,i) = tend(k,j,i) & |
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| 182 | + ( & |
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| 183 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
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| 184 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
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| 185 | ) * ddx2 & |
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| 186 | + ( & |
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| 187 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
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| 188 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
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| 189 | ) * ddy2 & |
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| 190 | + ( & |
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| 191 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
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| 192 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
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| 193 | ) * ddzw(k) & |
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| 194 | - dissipation(k,j) |
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| 195 | |
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| 196 | ENDDO |
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| 197 | ENDDO |
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| 198 | |
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| 199 | ! |
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| 200 | !-- Store dissipation if needed for calculating the sgs particle |
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| 201 | !-- velocities |
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| 202 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
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| 203 | turbulence ) THEN |
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| 204 | DO j = nys, nyn |
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| 205 | DO k = nzb_s_inner(j,i)+1, nzt |
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| 206 | diss(k,j,i) = dissipation(k,j) |
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| 207 | ENDDO |
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| 208 | ENDDO |
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| 209 | ENDIF |
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| 210 | |
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| 211 | ENDDO |
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| 212 | |
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| 213 | ELSE |
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| 214 | |
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| 215 | DO i = nxl, nxr |
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| 216 | DO j = nys, nyn |
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| 217 | DO k = nzb_s_inner(j,i)+1, nzt |
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| 218 | ! |
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| 219 | !-- Calculate the mixing length (for dissipation) |
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| 220 | dvar_dz = atmos_ocean_sign * & |
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| 221 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
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| 222 | IF ( dvar_dz > 0.0 ) THEN |
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| 223 | l_stable = 0.76 * SQRT( e(k,j,i) ) / & |
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| 224 | SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5 |
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| 225 | ELSE |
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| 226 | l_stable = l_grid(k) |
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| 227 | ENDIF |
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| 228 | ! |
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| 229 | !-- Adjustment of the mixing length |
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| 230 | IF ( wall_adjustment ) THEN |
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| 231 | l(k,j) = MIN( wall_adjustment_factor * & |
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| 232 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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| 233 | l_grid(k), l_stable ) |
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| 234 | ll(k,j) = MIN( wall_adjustment_factor * & |
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| 235 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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| 236 | l_grid(k) ) |
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| 237 | ELSE |
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| 238 | l(k,j) = MIN( l_grid(k), l_stable ) |
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| 239 | ll(k,j) = l_grid(k) |
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| 240 | ENDIF |
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| 241 | |
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| 242 | ENDDO |
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| 243 | ENDDO |
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| 244 | |
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| 245 | ! |
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| 246 | !-- Calculate the tendency terms |
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| 247 | DO j = nys, nyn |
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| 248 | DO k = nzb_s_inner(j,i)+1, nzt |
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| 249 | |
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| 250 | dissipation(k,j) = ( 0.19 + 0.74 * l(k,j) / ll(k,j) ) * & |
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| 251 | e(k,j,i) * SQRT( e(k,j,i) ) / l(k,j) |
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| 252 | |
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| 253 | tend(k,j,i) = tend(k,j,i) & |
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| 254 | + ( & |
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| 255 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
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| 256 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
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| 257 | ) * ddx2 & |
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| 258 | + ( & |
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| 259 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
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| 260 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
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| 261 | ) * ddy2 & |
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| 262 | + ( & |
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| 263 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
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| 264 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
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| 265 | ) * ddzw(k) & |
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| 266 | - dissipation(k,j) |
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| 267 | |
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| 268 | ENDDO |
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| 269 | ENDDO |
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| 270 | |
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| 271 | ! |
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| 272 | !-- Store dissipation if needed for calculating the sgs particle |
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| 273 | !-- velocities |
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| 274 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
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| 275 | turbulence ) THEN |
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| 276 | DO j = nys, nyn |
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| 277 | DO k = nzb_s_inner(j,i)+1, nzt |
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| 278 | diss(k,j,i) = dissipation(k,j) |
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| 279 | ENDDO |
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| 280 | ENDDO |
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| 281 | ENDIF |
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| 282 | |
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| 283 | ENDDO |
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| 284 | |
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| 285 | ENDIF |
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| 286 | |
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| 287 | ! |
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| 288 | !-- Boundary condition for dissipation |
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| 289 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN |
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| 290 | DO i = nxl, nxr |
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| 291 | DO j = nys, nyn |
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| 292 | diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) |
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| 293 | ENDDO |
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| 294 | ENDDO |
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| 295 | ENDIF |
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| 296 | |
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| 297 | END SUBROUTINE diffusion_e |
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| 298 | |
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| 299 | |
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| 300 | !------------------------------------------------------------------------------! |
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| 301 | ! Call for all grid points - accelerator version |
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| 302 | !------------------------------------------------------------------------------! |
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| 303 | SUBROUTINE diffusion_e_acc( var, var_reference ) |
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| 304 | |
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| 305 | USE arrays_3d, & |
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| 306 | ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw |
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| 307 | |
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| 308 | USE control_parameters, & |
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| 309 | ONLY: atmos_ocean_sign, g, turbulence, use_single_reference_value, & |
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| 310 | wall_adjustment, wall_adjustment_factor |
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| 311 | |
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| 312 | USE grid_variables, & |
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| 313 | ONLY: ddx2, ddy2 |
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| 314 | |
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| 315 | USE indices, & |
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| 316 | ONLY: i_left, i_right, j_north, j_south, nzb_s_inner, nzt |
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| 317 | |
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| 318 | USE kinds |
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| 319 | |
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| 320 | USE particle_attributes, & |
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| 321 | ONLY: use_sgs_for_particles, wang_kernel |
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| 322 | |
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| 323 | IMPLICIT NONE |
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| 324 | |
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| 325 | INTEGER(iwp) :: i !: |
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| 326 | INTEGER(iwp) :: j !: |
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| 327 | INTEGER(iwp) :: k !: |
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| 328 | REAL(wp) :: dissipation !: |
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| 329 | REAL(wp) :: dvar_dz !: |
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| 330 | REAL(wp) :: l !: |
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| 331 | REAL(wp) :: ll !: |
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| 332 | REAL(wp) :: l_stable !: |
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| 333 | REAL(wp) :: var_reference !: |
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| 334 | |
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| 335 | #if defined( __nopointer ) |
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| 336 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !: |
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| 337 | #else |
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| 338 | REAL(wp), DIMENSION(:,:,:), POINTER :: var !: |
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| 339 | #endif |
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| 340 | |
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| 341 | |
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| 342 | ! |
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| 343 | !-- This if clause must be outside the k-loop because otherwise |
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| 344 | !-- runtime errors occur with -C hopt on NEC |
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| 345 | IF ( use_single_reference_value ) THEN |
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| 346 | |
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| 347 | !$acc kernels present( ddzu, ddzw, dd2zu, diss, e, km, l_grid ) & |
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| 348 | !$acc present( nzb_s_inner, rif, tend, var, zu, zw ) |
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| 349 | DO i = i_left, i_right |
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| 350 | DO j = j_south, j_north |
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| 351 | DO k = 1, nzt |
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| 352 | |
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| 353 | IF ( k > nzb_s_inner(j,i) ) THEN |
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| 354 | ! |
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| 355 | !-- Calculate the mixing length (for dissipation) |
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| 356 | dvar_dz = atmos_ocean_sign * & |
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| 357 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
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| 358 | IF ( dvar_dz > 0.0 ) THEN |
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| 359 | l_stable = 0.76 * SQRT( e(k,j,i) ) / & |
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| 360 | SQRT( g / var_reference * dvar_dz ) + 1E-5 |
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| 361 | ELSE |
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| 362 | l_stable = l_grid(k) |
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| 363 | ENDIF |
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| 364 | ! |
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| 365 | !-- Adjustment of the mixing length |
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| 366 | IF ( wall_adjustment ) THEN |
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| 367 | l = MIN( wall_adjustment_factor * & |
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| 368 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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| 369 | l_grid(k), l_stable ) |
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| 370 | ll = MIN( wall_adjustment_factor * & |
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| 371 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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| 372 | l_grid(k) ) |
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| 373 | ELSE |
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| 374 | l = MIN( l_grid(k), l_stable ) |
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| 375 | ll = l_grid(k) |
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| 376 | ENDIF |
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| 377 | ! |
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| 378 | !-- Calculate the tendency terms |
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| 379 | dissipation = ( 0.19 + 0.74 * l / ll ) * & |
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| 380 | e(k,j,i) * SQRT( e(k,j,i) ) / l |
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| 381 | |
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| 382 | tend(k,j,i) = tend(k,j,i) & |
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| 383 | + ( & |
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| 384 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
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| 385 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
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| 386 | ) * ddx2 & |
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| 387 | + ( & |
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| 388 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
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| 389 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
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| 390 | ) * ddy2 & |
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| 391 | + ( & |
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| 392 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
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| 393 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
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| 394 | ) * ddzw(k) & |
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| 395 | - dissipation |
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| 396 | |
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| 397 | ! |
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| 398 | !-- Store dissipation if needed for calculating the sgs particle |
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| 399 | !-- velocities |
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| 400 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
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| 401 | turbulence ) THEN |
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| 402 | diss(k,j,i) = dissipation |
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| 403 | ENDIF |
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| 404 | |
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| 405 | ENDIF |
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| 406 | |
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| 407 | ENDDO |
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| 408 | ENDDO |
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| 409 | ENDDO |
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| 410 | !$acc end kernels |
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| 411 | |
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| 412 | ELSE |
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| 413 | |
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| 414 | !$acc kernels present( ddzu, ddzw, dd2zu, diss, e, km, l_grid ) & |
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| 415 | !$acc present( nzb_s_inner, rif, tend, var, zu, zw ) |
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| 416 | DO i = i_left, i_right |
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| 417 | DO j = j_south, j_north |
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| 418 | DO k = 1, nzt |
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| 419 | |
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| 420 | IF ( k > nzb_s_inner(j,i) ) THEN |
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| 421 | ! |
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| 422 | !-- Calculate the mixing length (for dissipation) |
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| 423 | dvar_dz = atmos_ocean_sign * & |
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| 424 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
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| 425 | IF ( dvar_dz > 0.0 ) THEN |
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| 426 | l_stable = 0.76 * SQRT( e(k,j,i) ) / & |
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| 427 | SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5 |
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| 428 | ELSE |
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| 429 | l_stable = l_grid(k) |
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| 430 | ENDIF |
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| 431 | ! |
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| 432 | !-- Adjustment of the mixing length |
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| 433 | IF ( wall_adjustment ) THEN |
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| 434 | l = MIN( wall_adjustment_factor * & |
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| 435 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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| 436 | l_grid(k), l_stable ) |
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| 437 | ll = MIN( wall_adjustment_factor * & |
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| 438 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
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| 439 | l_grid(k) ) |
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| 440 | ELSE |
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| 441 | l = MIN( l_grid(k), l_stable ) |
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| 442 | ll = l_grid(k) |
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| 443 | ENDIF |
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| 444 | ! |
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| 445 | !-- Calculate the tendency terms |
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| 446 | dissipation = ( 0.19 + 0.74 * l / ll ) * & |
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| 447 | e(k,j,i) * SQRT( e(k,j,i) ) / l |
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| 448 | |
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| 449 | tend(k,j,i) = tend(k,j,i) & |
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| 450 | + ( & |
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| 451 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
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| 452 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
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| 453 | ) * ddx2 & |
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| 454 | + ( & |
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| 455 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
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| 456 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
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| 457 | ) * ddy2 & |
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| 458 | + ( & |
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| 459 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
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| 460 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
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| 461 | ) * ddzw(k) & |
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| 462 | - dissipation |
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| 463 | |
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| 464 | ! |
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| 465 | !-- Store dissipation if needed for calculating the sgs |
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| 466 | !-- particle velocities |
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| 467 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
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| 468 | turbulence ) THEN |
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| 469 | diss(k,j,i) = dissipation |
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| 470 | ENDIF |
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| 471 | |
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| 472 | ENDIF |
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| 473 | |
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| 474 | ENDDO |
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| 475 | ENDDO |
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| 476 | ENDDO |
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| 477 | !$acc end kernels |
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| 478 | |
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| 479 | ENDIF |
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| 480 | |
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| 481 | ! |
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| 482 | !-- Boundary condition for dissipation |
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| 483 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN |
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| 484 | !$acc kernels present( diss, nzb_s_inner ) |
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| 485 | DO i = i_left, i_right |
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| 486 | DO j = j_south, j_north |
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| 487 | diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) |
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| 488 | ENDDO |
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| 489 | ENDDO |
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| 490 | !$acc end kernels |
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| 491 | ENDIF |
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| 492 | |
|---|
| 493 | END SUBROUTINE diffusion_e_acc |
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| 494 | |
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| 495 | |
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| 496 | !------------------------------------------------------------------------------! |
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| 497 | ! Call for grid point i,j |
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| 498 | !------------------------------------------------------------------------------! |
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| 499 | SUBROUTINE diffusion_e_ij( i, j, var, var_reference ) |
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| 500 | |
|---|
| 501 | USE arrays_3d, & |
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| 502 | ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw |
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| 503 | |
|---|
| 504 | USE control_parameters, & |
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| 505 | ONLY: atmos_ocean_sign, g, turbulence, use_single_reference_value, & |
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| 506 | wall_adjustment, wall_adjustment_factor |
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| 507 | |
|---|
| 508 | USE grid_variables, & |
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| 509 | ONLY: ddx2, ddy2 |
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| 510 | |
|---|
| 511 | USE indices, & |
|---|
| 512 | ONLY: nzb, nzb_s_inner, nzt |
|---|
| 513 | |
|---|
| 514 | USE kinds |
|---|
| 515 | |
|---|
| 516 | USE particle_attributes, & |
|---|
| 517 | ONLY: use_sgs_for_particles, wang_kernel |
|---|
| 518 | |
|---|
| 519 | IMPLICIT NONE |
|---|
| 520 | |
|---|
| 521 | INTEGER(iwp) :: i !: |
|---|
| 522 | INTEGER(iwp) :: j !: |
|---|
| 523 | INTEGER(iwp) :: k !: |
|---|
| 524 | REAL(wp) :: dvar_dz !: |
|---|
| 525 | REAL(wp) :: l_stable !: |
|---|
| 526 | REAL(wp) :: var_reference !: |
|---|
| 527 | |
|---|
| 528 | #if defined( __nopointer ) |
|---|
| 529 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !: |
|---|
| 530 | #else |
|---|
| 531 | REAL(wp), DIMENSION(:,:,:), POINTER :: var !: |
|---|
| 532 | #endif |
|---|
| 533 | REAL(wp), DIMENSION(nzb+1:nzt) :: dissipation !: |
|---|
| 534 | REAL(wp), DIMENSION(nzb+1:nzt) :: l !: |
|---|
| 535 | REAL(wp), DIMENSION(nzb+1:nzt) :: ll !: |
|---|
| 536 | |
|---|
| 537 | |
|---|
| 538 | ! |
|---|
| 539 | !-- Calculate the mixing length (for dissipation) |
|---|
| 540 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 541 | dvar_dz = atmos_ocean_sign * & |
|---|
| 542 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
|---|
| 543 | IF ( dvar_dz > 0.0 ) THEN |
|---|
| 544 | IF ( use_single_reference_value ) THEN |
|---|
| 545 | l_stable = 0.76 * SQRT( e(k,j,i) ) / & |
|---|
| 546 | SQRT( g / var_reference * dvar_dz ) + 1E-5 |
|---|
| 547 | ELSE |
|---|
| 548 | l_stable = 0.76 * SQRT( e(k,j,i) ) / & |
|---|
| 549 | SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5 |
|---|
| 550 | ENDIF |
|---|
| 551 | ELSE |
|---|
| 552 | l_stable = l_grid(k) |
|---|
| 553 | ENDIF |
|---|
| 554 | ! |
|---|
| 555 | !-- Adjustment of the mixing length |
|---|
| 556 | IF ( wall_adjustment ) THEN |
|---|
| 557 | l(k) = MIN( wall_adjustment_factor * & |
|---|
| 558 | ( zu(k) - zw(nzb_s_inner(j,i)) ), l_grid(k), & |
|---|
| 559 | l_stable ) |
|---|
| 560 | ll(k) = MIN( wall_adjustment_factor * & |
|---|
| 561 | ( zu(k) - zw(nzb_s_inner(j,i)) ), l_grid(k) ) |
|---|
| 562 | ELSE |
|---|
| 563 | l(k) = MIN( l_grid(k), l_stable ) |
|---|
| 564 | ll(k) = l_grid(k) |
|---|
| 565 | ENDIF |
|---|
| 566 | ! |
|---|
| 567 | !-- Calculate the tendency term |
|---|
| 568 | dissipation(k) = ( 0.19 + 0.74 * l(k) / ll(k) ) * e(k,j,i) * & |
|---|
| 569 | SQRT( e(k,j,i) ) / l(k) |
|---|
| 570 | |
|---|
| 571 | tend(k,j,i) = tend(k,j,i) & |
|---|
| 572 | + ( & |
|---|
| 573 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
|---|
| 574 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
|---|
| 575 | ) * ddx2 & |
|---|
| 576 | + ( & |
|---|
| 577 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
|---|
| 578 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
|---|
| 579 | ) * ddy2 & |
|---|
| 580 | + ( & |
|---|
| 581 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
|---|
| 582 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
|---|
| 583 | ) * ddzw(k) & |
|---|
| 584 | - dissipation(k) |
|---|
| 585 | |
|---|
| 586 | ENDDO |
|---|
| 587 | |
|---|
| 588 | ! |
|---|
| 589 | !-- Store dissipation if needed for calculating the sgs particle velocities |
|---|
| 590 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. turbulence ) THEN |
|---|
| 591 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 592 | diss(k,j,i) = dissipation(k) |
|---|
| 593 | ENDDO |
|---|
| 594 | ! |
|---|
| 595 | !-- Boundary condition for dissipation |
|---|
| 596 | diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) |
|---|
| 597 | ENDIF |
|---|
| 598 | |
|---|
| 599 | END SUBROUTINE diffusion_e_ij |
|---|
| 600 | |
|---|
| 601 | END MODULE diffusion_e_mod |
|---|
