Changeset 4340 for palm/trunk/SOURCE/init_grid.f90
- Timestamp:
- Dec 16, 2019 8:17:03 AM (4 years ago)
- File:
-
- 1 edited
-
palm/trunk/SOURCE/init_grid.f90 (modified) (12 diffs)
Legend:
- Unmodified
- Added
- Removed
-
palm/trunk/SOURCE/init_grid.f90
r4329 r4340 25 25 ! ----------------- 26 26 ! $Id$ 27 ! Topography closed channel flow with symmetric boundaries implemented 28 ! 29 ! 4329 2019-12-10 15:46:36Z motisi 27 30 ! Renamed wall_flags_0 to wall_flags_static_0 28 31 ! … … 132 135 momentum_advec, number_stretch_level_end, & 133 136 number_stretch_level_start, ocean_mode, psolver, scalar_advec, & 134 topography, use_surface_fluxes137 symmetry_flag, topography, use_surface_fluxes 135 138 136 139 USE grid_variables, & … … 360 363 !-- the first u/v- and w-level (k=0) are defined at same height (z=0). 361 364 !-- The second u-level (k=1) corresponds to the top of the 362 !-- Prandtl-layer. 363 IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 ) THEN 365 !-- Prandtl-layer. In case of symmetric boundaries (closed channel flow), 366 !-- the first grid point is always at z=0. 367 IF ( ibc_uv_b == 0 .OR. ibc_uv_b == 2 .OR. & 368 topography == 'closed_channel' ) THEN 364 369 zu(0) = 0.0_wp 365 370 ELSE … … 379 384 !-- The default value of dz_stretch_level_start is negative, thus the first 380 385 !-- condition is always true. Hence, the second condition is necessary. 381 DO k = 2, nzt+1 386 DO k = 2, nzt+1-symmetry_flag 382 387 IF ( dz_stretch_level_start(n) <= zu(k-1) .AND. & 383 388 dz_stretch_level_start(n) /= -9999999.9_wp ) THEN … … 408 413 ENDIF 409 414 ENDDO 415 416 ! 417 !-- If a closed channel flow is simulated, make sure that grid structure is 418 !-- the same for both bottom and top boundary. (Hint: Using a different dz 419 !-- at the bottom and at the top makes no sense due to symmetric boundaries 420 !-- where dz should be equal. Therefore, different dz at the bottom and top 421 !-- causes an abort (see check_parameters).) 422 IF ( topography == 'closed_channel' ) THEN 423 zu(nzt+1) = zu(nzt) + dz(1) * 0.5_wp 424 ENDIF 410 425 411 426 ! … … 413 428 !-- corresponding u-levels. In case of dirichlet bc for u and v at the 414 429 !-- ground the first u- and w-level (k=0) are defined at same height (z=0). 415 !-- The top w-level is extrapolated linearly. 430 !-- Per default, the top w-level is extrapolated linearly. In case of 431 !-- a closed channel flow, zu(nzt+1) and zw(nzt) must be set explicitely. 432 !-- (Hint: Using a different dz at the bottom and at the top makes no sense 433 !-- due to symmetric boundaries where dz should be equal. Therefore, 434 !-- different dz at the bottom and top causes an abort (see 435 !-- check_parameters).) 416 436 zw(0) = 0.0_wp 417 DO k = 1, nzt 437 DO k = 1, nzt-symmetry_flag 418 438 zw(k) = ( zu(k) + zu(k+1) ) * 0.5_wp 419 439 ENDDO 420 zw(nzt+1) = zw(nzt) + 2.0_wp * ( zu(nzt+1) - zw(nzt) ) 440 IF ( topography == 'closed_channel' ) THEN 441 zw(nzt) = zw(nzt-1) + dz(1) 442 zw(nzt+1) = zw(nzt) + dz(1) 443 ELSE 444 zw(nzt+1) = zw(nzt) + 2.0_wp * ( zu(nzt+1) - zw(nzt) ) 445 ENDIF 421 446 422 447 ELSE … … 1817 1842 ! 1818 1843 !-- Initialilize 3D topography array, used later for initializing flags 1819 topo(nzb+1:nzt+1,:,:) = IBSET( topo(nzb+1:nzt+1,:,:), 0 ) 1844 topo(nzb+1:nzt+1,:,:) = IBSET( topo(nzb+1:nzt+1,:,:), 0 ) 1845 1846 CASE ( 'closed_channel' ) 1847 ! 1848 !-- Initialilize 3D topography array, used later for initializing flags 1849 topo(nzb+1:nzt,:,:) = IBSET( topo(nzb+1:nzt,:,:), 0 ) 1820 1850 1821 1851 CASE ( 'single_building' ) … … 2238 2268 !-- is applicable. If this is not possible, abort. 2239 2269 IF ( TRIM( topography_grid_convention ) == ' ' ) THEN 2240 IF ( TRIM( topography ) /= 'single_building' .AND. & 2270 IF ( TRIM( topography ) /= 'closed_channel' .AND. & 2271 TRIM( topography ) /= 'single_building' .AND. & 2241 2272 TRIM( topography ) /= 'single_street_canyon' .AND. & 2242 2273 TRIM( topography ) /= 'tunnel' .AND. & … … 2250 2281 'is not set. Its default value is & only valid for ', & 2251 2282 '"topography" = ''single_building'', ''tunnel'' ', & 2252 '''single_street_canyon'' & or ''read_from_file''.', & 2283 '''single_street_canyon'', ''closed_channel'' & or ', & 2284 '''read_from_file''.', & 2253 2285 '& Choose ''cell_edge'' or ''cell_center''.' 2254 2286 CALL message( 'init_grid', 'PA0239', 1, 2, 0, 6, 0 ) … … 2344 2376 ! 2345 2377 !-- scalar grid 2346 IF ( BTEST( topo(k,j,i), 0 ) ) &2378 IF ( BTEST( topo(k,j,i), 0 ) ) & 2347 2379 wall_flags_static_0(k,j,i) = IBSET( wall_flags_static_0(k,j,i), 0 ) 2348 2380 ! 2349 2381 !-- u grid 2350 IF ( BTEST( topo(k,j,i), 0 ) .AND. &2351 BTEST( topo(k,j,i-1), 0 ) ) &2382 IF ( BTEST( topo(k,j,i), 0 ) .AND. & 2383 BTEST( topo(k,j,i-1), 0 ) ) & 2352 2384 wall_flags_static_0(k,j,i) = IBSET( wall_flags_static_0(k,j,i), 1 ) 2353 2385 ! 2354 2386 !-- v grid 2355 IF ( BTEST( topo(k,j,i), 0 ) .AND. &2356 BTEST( topo(k,j-1,i), 0 ) ) &2387 IF ( BTEST( topo(k,j,i), 0 ) .AND. & 2388 BTEST( topo(k,j-1,i), 0 ) ) & 2357 2389 wall_flags_static_0(k,j,i) = IBSET( wall_flags_static_0(k,j,i), 2 ) 2358 2390 … … 2362 2394 ! 2363 2395 !-- w grid 2364 IF ( BTEST( topo(k,j,i), 0 ) .AND. &2365 BTEST( topo(k+1,j,i), 0 ) ) &2396 IF ( BTEST( topo(k,j,i), 0 ) .AND. & 2397 BTEST( topo(k+1,j,i), 0 ) ) & 2366 2398 wall_flags_static_0(k,j,i) = IBSET( wall_flags_static_0(k,j,i), 3 ) 2367 2399 ENDDO 2368 wall_flags_static_0(nzt+1,j,i) = IBSET( wall_flags_static_0(nzt+1,j,i), 3 ) 2400 2401 IF ( topography /= 'closed_channel' ) THEN 2402 wall_flags_static_0(nzt+1,j,i) = IBSET( wall_flags_static_0(nzt+1,j,i), 3 ) 2403 ENDIF 2369 2404 2370 2405 ENDDO … … 2479 2514 ! 2480 2515 !-- Flags indicating downward facing walls 2481 DO k = nzb+1, nzt 2516 DO k = nzb+1, nzt+1 2482 2517 ! 2483 2518 !-- Scalar grid
Note: See TracChangeset
for help on using the changeset viewer.
