| 1 | !> @file diffusion_e.f90 |
|---|
| 2 | !------------------------------------------------------------------------------! |
|---|
| 3 | ! This file is part of PALM. |
|---|
| 4 | ! |
|---|
| 5 | ! PALM is free software: you can redistribute it and/or modify it under the |
|---|
| 6 | ! terms of the GNU General Public License as published by the Free Software |
|---|
| 7 | ! Foundation, either version 3 of the License, or (at your option) any later |
|---|
| 8 | ! version. |
|---|
| 9 | ! |
|---|
| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
|---|
| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
|---|
| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
|---|
| 13 | ! |
|---|
| 14 | ! You should have received a copy of the GNU General Public License along with |
|---|
| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
|---|
| 16 | ! |
|---|
| 17 | ! Copyright 1997-2017 Leibniz Universitaet Hannover |
|---|
| 18 | !------------------------------------------------------------------------------! |
|---|
| 19 | ! |
|---|
| 20 | ! Current revisions: |
|---|
| 21 | ! ----------------- |
|---|
| 22 | ! |
|---|
| 23 | ! |
|---|
| 24 | ! Former revisions: |
|---|
| 25 | ! ----------------- |
|---|
| 26 | ! $Id: diffusion_e.f90 2119 2017-01-17 16:51:50Z scharf $ |
|---|
| 27 | ! |
|---|
| 28 | ! 2118 2017-01-17 16:38:49Z raasch |
|---|
| 29 | ! OpenACC version of subroutine removed |
|---|
| 30 | ! |
|---|
| 31 | ! 2037 2016-10-26 11:15:40Z knoop |
|---|
| 32 | ! Anelastic approximation implemented |
|---|
| 33 | ! |
|---|
| 34 | ! 2000 2016-08-20 18:09:15Z knoop |
|---|
| 35 | ! Forced header and separation lines into 80 columns |
|---|
| 36 | ! |
|---|
| 37 | ! 1873 2016-04-18 14:50:06Z maronga |
|---|
| 38 | ! Module renamed (removed _mod) |
|---|
| 39 | ! |
|---|
| 40 | ! 1850 2016-04-08 13:29:27Z maronga |
|---|
| 41 | ! Module renamed |
|---|
| 42 | ! Adapted for modularization of microphysics |
|---|
| 43 | ! |
|---|
| 44 | ! 1831 2016-04-07 13:15:51Z hoffmann |
|---|
| 45 | ! turbulence renamed collision_turbulence |
|---|
| 46 | ! |
|---|
| 47 | ! 1682 2015-10-07 23:56:08Z knoop |
|---|
| 48 | ! Code annotations made doxygen readable |
|---|
| 49 | ! |
|---|
| 50 | ! 1374 2014-04-25 12:55:07Z raasch |
|---|
| 51 | ! missing variables added to ONLY list |
|---|
| 52 | ! rif removed from acc-present-list |
|---|
| 53 | ! |
|---|
| 54 | ! 1340 2014-03-25 19:45:13Z kanani |
|---|
| 55 | ! REAL constants defined as wp-kind |
|---|
| 56 | ! |
|---|
| 57 | ! 1320 2014-03-20 08:40:49Z raasch |
|---|
| 58 | ! ONLY-attribute added to USE-statements, |
|---|
| 59 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
|---|
| 60 | ! kinds are defined in new module kinds, |
|---|
| 61 | ! revision history before 2012 removed, |
|---|
| 62 | ! comment fields (!:) to be used for variable explanations added to |
|---|
| 63 | ! all variable declaration statements |
|---|
| 64 | ! |
|---|
| 65 | ! 1257 2013-11-08 15:18:40Z raasch |
|---|
| 66 | ! openacc loop and loop vector clauses removed |
|---|
| 67 | ! |
|---|
| 68 | ! 1179 2013-06-14 05:57:58Z raasch |
|---|
| 69 | ! use_reference renamed use_single_reference_value |
|---|
| 70 | ! |
|---|
| 71 | ! 1171 2013-05-30 11:27:45Z raasch |
|---|
| 72 | ! use_reference-case activated in accelerator version |
|---|
| 73 | ! |
|---|
| 74 | ! 1128 2013-04-12 06:19:32Z raasch |
|---|
| 75 | ! loop index bounds in accelerator version replaced by i_left, i_right, j_south, |
|---|
| 76 | ! j_north |
|---|
| 77 | ! |
|---|
| 78 | ! 1065 2012-11-22 17:42:36Z hoffmann |
|---|
| 79 | ! Enabled the claculation of diss in case of turbulence = .TRUE. (parameterized |
|---|
| 80 | ! effects of turbulence on autoconversion and accretion in two-moments cloud |
|---|
| 81 | ! physics scheme). |
|---|
| 82 | ! |
|---|
| 83 | ! 1036 2012-10-22 13:43:42Z raasch |
|---|
| 84 | ! code put under GPL (PALM 3.9) |
|---|
| 85 | ! |
|---|
| 86 | ! 1015 2012-09-27 09:23:24Z raasch |
|---|
| 87 | ! accelerator version (*_acc) added, |
|---|
| 88 | ! adjustment of mixing length to the Prandtl mixing length at first grid point |
|---|
| 89 | ! above ground removed |
|---|
| 90 | ! |
|---|
| 91 | ! 1010 2012-09-20 07:59:54Z raasch |
|---|
| 92 | ! cpp switch __nopointer added for pointer free version |
|---|
| 93 | ! |
|---|
| 94 | ! 1001 2012-09-13 14:08:46Z raasch |
|---|
| 95 | ! most arrays comunicated by module instead of parameter list |
|---|
| 96 | ! |
|---|
| 97 | ! 825 2012-02-19 03:03:44Z raasch |
|---|
| 98 | ! wang_collision_kernel renamed wang_kernel |
|---|
| 99 | ! |
|---|
| 100 | ! Revision 1.1 1997/09/19 07:40:24 raasch |
|---|
| 101 | ! Initial revision |
|---|
| 102 | ! |
|---|
| 103 | ! |
|---|
| 104 | ! Description: |
|---|
| 105 | ! ------------ |
|---|
| 106 | !> Diffusion- and dissipation terms for the TKE |
|---|
| 107 | !------------------------------------------------------------------------------! |
|---|
| 108 | MODULE diffusion_e_mod |
|---|
| 109 | |
|---|
| 110 | |
|---|
| 111 | PRIVATE |
|---|
| 112 | PUBLIC diffusion_e |
|---|
| 113 | |
|---|
| 114 | |
|---|
| 115 | INTERFACE diffusion_e |
|---|
| 116 | MODULE PROCEDURE diffusion_e |
|---|
| 117 | MODULE PROCEDURE diffusion_e_ij |
|---|
| 118 | END INTERFACE diffusion_e |
|---|
| 119 | |
|---|
| 120 | CONTAINS |
|---|
| 121 | |
|---|
| 122 | |
|---|
| 123 | !------------------------------------------------------------------------------! |
|---|
| 124 | ! Description: |
|---|
| 125 | ! ------------ |
|---|
| 126 | !> Call for all grid points |
|---|
| 127 | !------------------------------------------------------------------------------! |
|---|
| 128 | SUBROUTINE diffusion_e( var, var_reference ) |
|---|
| 129 | |
|---|
| 130 | USE arrays_3d, & |
|---|
| 131 | ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw, & |
|---|
| 132 | drho_air, rho_air_zw |
|---|
| 133 | |
|---|
| 134 | USE control_parameters, & |
|---|
| 135 | ONLY: atmos_ocean_sign, g, use_single_reference_value, & |
|---|
| 136 | wall_adjustment, wall_adjustment_factor |
|---|
| 137 | |
|---|
| 138 | USE grid_variables, & |
|---|
| 139 | ONLY: ddx2, ddy2 |
|---|
| 140 | |
|---|
| 141 | USE indices, & |
|---|
| 142 | ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb, nzb_s_inner,& |
|---|
| 143 | nzt |
|---|
| 144 | |
|---|
| 145 | USE kinds |
|---|
| 146 | |
|---|
| 147 | USE microphysics_mod, & |
|---|
| 148 | ONLY: collision_turbulence |
|---|
| 149 | |
|---|
| 150 | USE particle_attributes, & |
|---|
| 151 | ONLY: use_sgs_for_particles, wang_kernel |
|---|
| 152 | |
|---|
| 153 | IMPLICIT NONE |
|---|
| 154 | |
|---|
| 155 | INTEGER(iwp) :: i !< |
|---|
| 156 | INTEGER(iwp) :: j !< |
|---|
| 157 | INTEGER(iwp) :: k !< |
|---|
| 158 | REAL(wp) :: dvar_dz !< |
|---|
| 159 | REAL(wp) :: l_stable !< |
|---|
| 160 | REAL(wp) :: var_reference !< |
|---|
| 161 | |
|---|
| 162 | #if defined( __nopointer ) |
|---|
| 163 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !< |
|---|
| 164 | #else |
|---|
| 165 | REAL(wp), DIMENSION(:,:,:), POINTER :: var !< |
|---|
| 166 | #endif |
|---|
| 167 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: dissipation !< |
|---|
| 168 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: l !< |
|---|
| 169 | REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: ll !< |
|---|
| 170 | |
|---|
| 171 | |
|---|
| 172 | ! |
|---|
| 173 | !-- This if clause must be outside the k-loop because otherwise |
|---|
| 174 | !-- runtime errors occur with -C hopt on NEC |
|---|
| 175 | IF ( use_single_reference_value ) THEN |
|---|
| 176 | |
|---|
| 177 | DO i = nxl, nxr |
|---|
| 178 | DO j = nys, nyn |
|---|
| 179 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 180 | ! |
|---|
| 181 | !-- Calculate the mixing length (for dissipation) |
|---|
| 182 | dvar_dz = atmos_ocean_sign * & |
|---|
| 183 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
|---|
| 184 | IF ( dvar_dz > 0.0_wp ) THEN |
|---|
| 185 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
|---|
| 186 | SQRT( g / var_reference * dvar_dz ) + 1E-5_wp |
|---|
| 187 | ELSE |
|---|
| 188 | l_stable = l_grid(k) |
|---|
| 189 | ENDIF |
|---|
| 190 | ! |
|---|
| 191 | !-- Adjustment of the mixing length |
|---|
| 192 | IF ( wall_adjustment ) THEN |
|---|
| 193 | l(k,j) = MIN( wall_adjustment_factor * & |
|---|
| 194 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
|---|
| 195 | l_grid(k), l_stable ) |
|---|
| 196 | ll(k,j) = MIN( wall_adjustment_factor * & |
|---|
| 197 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
|---|
| 198 | l_grid(k) ) |
|---|
| 199 | ELSE |
|---|
| 200 | l(k,j) = MIN( l_grid(k), l_stable ) |
|---|
| 201 | ll(k,j) = l_grid(k) |
|---|
| 202 | ENDIF |
|---|
| 203 | |
|---|
| 204 | ENDDO |
|---|
| 205 | ENDDO |
|---|
| 206 | |
|---|
| 207 | ! |
|---|
| 208 | !-- Calculate the tendency terms |
|---|
| 209 | DO j = nys, nyn |
|---|
| 210 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 211 | |
|---|
| 212 | dissipation(k,j) = ( 0.19_wp + 0.74_wp * l(k,j) / ll(k,j) ) * & |
|---|
| 213 | e(k,j,i) * SQRT( e(k,j,i) ) / l(k,j) |
|---|
| 214 | |
|---|
| 215 | tend(k,j,i) = tend(k,j,i) & |
|---|
| 216 | + ( & |
|---|
| 217 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
|---|
| 218 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
|---|
| 219 | ) * ddx2 & |
|---|
| 220 | + ( & |
|---|
| 221 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
|---|
| 222 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
|---|
| 223 | ) * ddy2 & |
|---|
| 224 | + ( & |
|---|
| 225 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
|---|
| 226 | * rho_air_zw(k) & |
|---|
| 227 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
|---|
| 228 | * rho_air_zw(k-1) & |
|---|
| 229 | ) * ddzw(k) * drho_air(k) & |
|---|
| 230 | - dissipation(k,j) |
|---|
| 231 | |
|---|
| 232 | ENDDO |
|---|
| 233 | ENDDO |
|---|
| 234 | |
|---|
| 235 | ! |
|---|
| 236 | !-- Store dissipation if needed for calculating the sgs particle |
|---|
| 237 | !-- velocities |
|---|
| 238 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
|---|
| 239 | collision_turbulence ) THEN |
|---|
| 240 | DO j = nys, nyn |
|---|
| 241 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 242 | diss(k,j,i) = dissipation(k,j) |
|---|
| 243 | ENDDO |
|---|
| 244 | ENDDO |
|---|
| 245 | ENDIF |
|---|
| 246 | |
|---|
| 247 | ENDDO |
|---|
| 248 | |
|---|
| 249 | ELSE |
|---|
| 250 | |
|---|
| 251 | DO i = nxl, nxr |
|---|
| 252 | DO j = nys, nyn |
|---|
| 253 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 254 | ! |
|---|
| 255 | !-- Calculate the mixing length (for dissipation) |
|---|
| 256 | dvar_dz = atmos_ocean_sign * & |
|---|
| 257 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
|---|
| 258 | IF ( dvar_dz > 0.0_wp ) THEN |
|---|
| 259 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
|---|
| 260 | SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5_wp |
|---|
| 261 | ELSE |
|---|
| 262 | l_stable = l_grid(k) |
|---|
| 263 | ENDIF |
|---|
| 264 | ! |
|---|
| 265 | !-- Adjustment of the mixing length |
|---|
| 266 | IF ( wall_adjustment ) THEN |
|---|
| 267 | l(k,j) = MIN( wall_adjustment_factor * & |
|---|
| 268 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
|---|
| 269 | l_grid(k), l_stable ) |
|---|
| 270 | ll(k,j) = MIN( wall_adjustment_factor * & |
|---|
| 271 | ( zu(k) - zw(nzb_s_inner(j,i)) ), & |
|---|
| 272 | l_grid(k) ) |
|---|
| 273 | ELSE |
|---|
| 274 | l(k,j) = MIN( l_grid(k), l_stable ) |
|---|
| 275 | ll(k,j) = l_grid(k) |
|---|
| 276 | ENDIF |
|---|
| 277 | |
|---|
| 278 | ENDDO |
|---|
| 279 | ENDDO |
|---|
| 280 | |
|---|
| 281 | ! |
|---|
| 282 | !-- Calculate the tendency terms |
|---|
| 283 | DO j = nys, nyn |
|---|
| 284 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 285 | |
|---|
| 286 | dissipation(k,j) = ( 0.19_wp + 0.74_wp * l(k,j) / ll(k,j) ) * & |
|---|
| 287 | e(k,j,i) * SQRT( e(k,j,i) ) / l(k,j) |
|---|
| 288 | |
|---|
| 289 | tend(k,j,i) = tend(k,j,i) & |
|---|
| 290 | + ( & |
|---|
| 291 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
|---|
| 292 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
|---|
| 293 | ) * ddx2 & |
|---|
| 294 | + ( & |
|---|
| 295 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
|---|
| 296 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
|---|
| 297 | ) * ddy2 & |
|---|
| 298 | + ( & |
|---|
| 299 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
|---|
| 300 | * rho_air_zw(k) & |
|---|
| 301 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
|---|
| 302 | * rho_air_zw(k-1) & |
|---|
| 303 | ) * ddzw(k) * drho_air(k) & |
|---|
| 304 | - dissipation(k,j) |
|---|
| 305 | |
|---|
| 306 | ENDDO |
|---|
| 307 | ENDDO |
|---|
| 308 | |
|---|
| 309 | ! |
|---|
| 310 | !-- Store dissipation if needed for calculating the sgs particle |
|---|
| 311 | !-- velocities |
|---|
| 312 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
|---|
| 313 | collision_turbulence ) THEN |
|---|
| 314 | DO j = nys, nyn |
|---|
| 315 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 316 | diss(k,j,i) = dissipation(k,j) |
|---|
| 317 | ENDDO |
|---|
| 318 | ENDDO |
|---|
| 319 | ENDIF |
|---|
| 320 | |
|---|
| 321 | ENDDO |
|---|
| 322 | |
|---|
| 323 | ENDIF |
|---|
| 324 | |
|---|
| 325 | ! |
|---|
| 326 | !-- Boundary condition for dissipation |
|---|
| 327 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
|---|
| 328 | collision_turbulence ) THEN |
|---|
| 329 | DO i = nxl, nxr |
|---|
| 330 | DO j = nys, nyn |
|---|
| 331 | diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) |
|---|
| 332 | ENDDO |
|---|
| 333 | ENDDO |
|---|
| 334 | ENDIF |
|---|
| 335 | |
|---|
| 336 | END SUBROUTINE diffusion_e |
|---|
| 337 | |
|---|
| 338 | |
|---|
| 339 | !------------------------------------------------------------------------------! |
|---|
| 340 | ! Description: |
|---|
| 341 | ! ------------ |
|---|
| 342 | !> Call for grid point i,j |
|---|
| 343 | !------------------------------------------------------------------------------! |
|---|
| 344 | SUBROUTINE diffusion_e_ij( i, j, var, var_reference ) |
|---|
| 345 | |
|---|
| 346 | USE arrays_3d, & |
|---|
| 347 | ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw, & |
|---|
| 348 | drho_air, rho_air_zw |
|---|
| 349 | |
|---|
| 350 | USE control_parameters, & |
|---|
| 351 | ONLY: atmos_ocean_sign, g, use_single_reference_value, & |
|---|
| 352 | wall_adjustment, wall_adjustment_factor |
|---|
| 353 | |
|---|
| 354 | USE grid_variables, & |
|---|
| 355 | ONLY: ddx2, ddy2 |
|---|
| 356 | |
|---|
| 357 | USE indices, & |
|---|
| 358 | ONLY: nxlg, nxrg, nyng, nysg, nzb, nzb_s_inner, nzt |
|---|
| 359 | |
|---|
| 360 | USE kinds |
|---|
| 361 | |
|---|
| 362 | USE microphysics_mod, & |
|---|
| 363 | ONLY: collision_turbulence |
|---|
| 364 | |
|---|
| 365 | USE particle_attributes, & |
|---|
| 366 | ONLY: use_sgs_for_particles, wang_kernel |
|---|
| 367 | |
|---|
| 368 | IMPLICIT NONE |
|---|
| 369 | |
|---|
| 370 | INTEGER(iwp) :: i !< |
|---|
| 371 | INTEGER(iwp) :: j !< |
|---|
| 372 | INTEGER(iwp) :: k !< |
|---|
| 373 | REAL(wp) :: dvar_dz !< |
|---|
| 374 | REAL(wp) :: l_stable !< |
|---|
| 375 | REAL(wp) :: var_reference !< |
|---|
| 376 | |
|---|
| 377 | #if defined( __nopointer ) |
|---|
| 378 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !< |
|---|
| 379 | #else |
|---|
| 380 | REAL(wp), DIMENSION(:,:,:), POINTER :: var !< |
|---|
| 381 | #endif |
|---|
| 382 | REAL(wp), DIMENSION(nzb+1:nzt) :: dissipation !< |
|---|
| 383 | REAL(wp), DIMENSION(nzb+1:nzt) :: l !< |
|---|
| 384 | REAL(wp), DIMENSION(nzb+1:nzt) :: ll !< |
|---|
| 385 | |
|---|
| 386 | |
|---|
| 387 | ! |
|---|
| 388 | !-- Calculate the mixing length (for dissipation) |
|---|
| 389 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 390 | dvar_dz = atmos_ocean_sign * & |
|---|
| 391 | ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) |
|---|
| 392 | IF ( dvar_dz > 0.0_wp ) THEN |
|---|
| 393 | IF ( use_single_reference_value ) THEN |
|---|
| 394 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
|---|
| 395 | SQRT( g / var_reference * dvar_dz ) + 1E-5_wp |
|---|
| 396 | ELSE |
|---|
| 397 | l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & |
|---|
| 398 | SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5_wp |
|---|
| 399 | ENDIF |
|---|
| 400 | ELSE |
|---|
| 401 | l_stable = l_grid(k) |
|---|
| 402 | ENDIF |
|---|
| 403 | ! |
|---|
| 404 | !-- Adjustment of the mixing length |
|---|
| 405 | IF ( wall_adjustment ) THEN |
|---|
| 406 | l(k) = MIN( wall_adjustment_factor * & |
|---|
| 407 | ( zu(k) - zw(nzb_s_inner(j,i)) ), l_grid(k), & |
|---|
| 408 | l_stable ) |
|---|
| 409 | ll(k) = MIN( wall_adjustment_factor * & |
|---|
| 410 | ( zu(k) - zw(nzb_s_inner(j,i)) ), l_grid(k) ) |
|---|
| 411 | ELSE |
|---|
| 412 | l(k) = MIN( l_grid(k), l_stable ) |
|---|
| 413 | ll(k) = l_grid(k) |
|---|
| 414 | ENDIF |
|---|
| 415 | ! |
|---|
| 416 | !-- Calculate the tendency term |
|---|
| 417 | dissipation(k) = ( 0.19_wp + 0.74_wp * l(k) / ll(k) ) * e(k,j,i) * & |
|---|
| 418 | SQRT( e(k,j,i) ) / l(k) |
|---|
| 419 | |
|---|
| 420 | tend(k,j,i) = tend(k,j,i) & |
|---|
| 421 | + ( & |
|---|
| 422 | ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & |
|---|
| 423 | - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & |
|---|
| 424 | ) * ddx2 & |
|---|
| 425 | + ( & |
|---|
| 426 | ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & |
|---|
| 427 | - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & |
|---|
| 428 | ) * ddy2 & |
|---|
| 429 | + ( & |
|---|
| 430 | ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & |
|---|
| 431 | * rho_air_zw(k) & |
|---|
| 432 | - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & |
|---|
| 433 | * rho_air_zw(k-1) & |
|---|
| 434 | ) * ddzw(k) * drho_air(k) & |
|---|
| 435 | - dissipation(k) |
|---|
| 436 | |
|---|
| 437 | ENDDO |
|---|
| 438 | |
|---|
| 439 | ! |
|---|
| 440 | !-- Store dissipation if needed for calculating the sgs particle velocities |
|---|
| 441 | IF ( use_sgs_for_particles .OR. wang_kernel .OR. & |
|---|
| 442 | collision_turbulence ) THEN |
|---|
| 443 | DO k = nzb_s_inner(j,i)+1, nzt |
|---|
| 444 | diss(k,j,i) = dissipation(k) |
|---|
| 445 | ENDDO |
|---|
| 446 | ! |
|---|
| 447 | !-- Boundary condition for dissipation |
|---|
| 448 | diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) |
|---|
| 449 | ENDIF |
|---|
| 450 | |
|---|
| 451 | END SUBROUTINE diffusion_e_ij |
|---|
| 452 | |
|---|
| 453 | END MODULE diffusion_e_mod |
|---|
