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source: palm/trunk/SOURCE/diffusion_w.f90 @ 1357

Last change on this file since 1357 was 1354, checked in by heinze, 11 years ago
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[1]	1	MODULE diffusion_w_mod
	2
[1036]	3	!--------------------------------------------------------------------------------!
	4	! This file is part of PALM.
	5	!
	6	! PALM is free software: you can redistribute it and/or modify it under the terms
	7	! of the GNU General Public License as published by the Free Software Foundation,
	8	! either version 3 of the License, or (at your option) any later 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	!
[1310]	17	! Copyright 1997-2014 Leibniz Universitaet Hannover
[1036]	18	!--------------------------------------------------------------------------------!
	19	!
[484]	20	! Current revisions:
[1]	21	! -----------------
[1341]	22	!
[1354]	23	!
[1321]	24	! Former revisions:
	25	! -----------------
	26	! $Id: diffusion_w.f90 1354 2014-04-08 15:22:57Z witha $
	27	!
[1354]	28	! 1353 2014-04-08 15:21:23Z heinze
	29	! REAL constants provided with KIND-attribute
	30	!
[1341]	31	! 1340 2014-03-25 19:45:13Z kanani
	32	! REAL constants defined as wp-kind
	33	!
[1323]	34	! 1322 2014-03-20 16:38:49Z raasch
	35	! REAL constants defined as wp-kind
	36	!
[1321]	37	! 1320 2014-03-20 08:40:49Z raasch
[1320]	38	! ONLY-attribute added to USE-statements,
	39	! kind-parameters added to all INTEGER and REAL declaration statements,
	40	! kinds are defined in new module kinds,
	41	! revision history before 2012 removed,
	42	! comment fields (!:) to be used for variable explanations added to
	43	! all variable declaration statements
[1]	44	!
[1258]	45	! 1257 2013-11-08 15:18:40Z raasch
	46	! openacc loop and loop vector clauses removed, declare create moved after
	47	! the FORTRAN declaration statement
	48	!
[1132]	49	! 1128 2013-04-12 06:19:32Z raasch
	50	! loop index bounds in accelerator version replaced by i_left, i_right, j_south,
	51	! j_north
	52	!
[1037]	53	! 1036 2012-10-22 13:43:42Z raasch
	54	! code put under GPL (PALM 3.9)
	55	!
[1017]	56	! 1015 2012-09-27 09:23:24Z raasch
	57	! accelerator version (*_acc) added
	58	!
[1002]	59	! 1001 2012-09-13 14:08:46Z raasch
	60	! arrays comunicated by module instead of parameter list
	61	!
[979]	62	! 978 2012-08-09 08:28:32Z fricke
	63	! outflow damping layer removed
	64	! kmxm_x/_z and kmxp_x/_z change to kmxm and kmxp
	65	! kmym_y/_z and kmyp_y/_z change to kmym and kmyp
	66	!
[1]	67	! Revision 1.1 1997/09/12 06:24:11 raasch
	68	! Initial revision
	69	!
	70	!
	71	! Description:
	72	! ------------
	73	! Diffusion term of the w-component
	74	!------------------------------------------------------------------------------!
	75
[1320]	76	USE wall_fluxes_mod, &
	77	ONLY : wall_fluxes, wall_fluxes_acc
[56]	78
[1]	79	PRIVATE
[1015]	80	PUBLIC diffusion_w, diffusion_w_acc
[1]	81
	82	INTERFACE diffusion_w
	83	MODULE PROCEDURE diffusion_w
	84	MODULE PROCEDURE diffusion_w_ij
	85	END INTERFACE diffusion_w
	86
[1015]	87	INTERFACE diffusion_w_acc
	88	MODULE PROCEDURE diffusion_w_acc
	89	END INTERFACE diffusion_w_acc
	90
[1]	91	CONTAINS
	92
	93
	94	!------------------------------------------------------------------------------!
	95	! Call for all grid points
	96	!------------------------------------------------------------------------------!
[1001]	97	SUBROUTINE diffusion_w
[1]	98
[1320]	99	USE arrays_3d, &
	100	ONLY : ddzu, ddzw, km, tend, u, v, w
	101
	102	USE control_parameters, &
	103	ONLY : topography
	104
	105	USE grid_variables, &
	106	ONLY : ddx, ddy, fwxm, fwxp, fwym, fwyp, wall_w_x, wall_w_y
	107
	108	USE indices, &
	109	ONLY : nxl, nxr, nyn, nys, nzb, nzb_w_inner, nzb_w_outer, nzt
	110
	111	USE kinds
[1]	112
	113	IMPLICIT NONE
	114
[1320]	115	INTEGER(iwp) :: i !:
	116	INTEGER(iwp) :: j !:
	117	INTEGER(iwp) :: k !:
	118
	119	REAL(wp) :: kmxm !:
	120	REAL(wp) :: kmxp !:
	121	REAL(wp) :: kmym !:
	122	REAL(wp) :: kmyp !:
[1001]	123
[1320]	124	REAL(wp), DIMENSION(nzb:nzt+1,nys:nyn,nxl:nxr) :: wsus !:
	125	REAL(wp), DIMENSION(nzb:nzt+1,nys:nyn,nxl:nxr) :: wsvs !:
[1]	126
	127
[56]	128	!
	129	!-- First calculate horizontal momentum flux w'u' and/or w'v' at vertical
	130	!-- walls, if neccessary
	131	IF ( topography /= 'flat' ) THEN
[1320]	132	CALL wall_fluxes( wsus, 0.0_wp, 0.0_wp, 0.0_wp, 1.0_wp, nzb_w_inner, &
[56]	133	nzb_w_outer, wall_w_x )
[1320]	134	CALL wall_fluxes( wsvs, 0.0_wp, 0.0_wp, 1.0_wp, 0.0_wp, nzb_w_inner, &
[56]	135	nzb_w_outer, wall_w_y )
	136	ENDIF
	137
[1]	138	DO i = nxl, nxr
	139	DO j = nys, nyn
	140	DO k = nzb_w_outer(j,i)+1, nzt-1
	141	!
	142	!-- Interpolate eddy diffusivities on staggered gridpoints
[1322]	143	kmxp = 0.25_wp * &
[978]	144	( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) )
[1322]	145	kmxm = 0.25_wp * &
[978]	146	( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) )
[1322]	147	kmyp = 0.25_wp * &
[978]	148	( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) )
[1322]	149	kmym = 0.25_wp * &
[978]	150	( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) )
[1]	151
	152	tend(k,j,i) = tend(k,j,i) &
[978]	153	& + ( kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx &
	154	& + kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) &
	155	& - kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx &
	156	& - kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) &
[1]	157	& ) * ddx &
[978]	158	& + ( kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy &
	159	& + kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) &
	160	& - kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy &
	161	& - kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) &
[1]	162	& ) * ddy &
[1322]	163	& + 2.0_wp * ( &
[1]	164	& km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) &
	165	& - km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) &
[1340]	166	& ) * ddzu(k+1)
[1]	167	ENDDO
	168
	169	!
	170	!-- Wall functions at all vertical walls, where necessary
[1340]	171	IF ( wall_w_x(j,i) /= 0.0_wp .OR. wall_w_y(j,i) /= 0.0_wp ) THEN
[51]	172
[1]	173	DO k = nzb_w_inner(j,i)+1, nzb_w_outer(j,i)
	174	!
	175	!-- Interpolate eddy diffusivities on staggered gridpoints
[1322]	176	kmxp = 0.25_wp * &
[978]	177	( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) )
[1322]	178	kmxm = 0.25_wp * &
[978]	179	( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) )
[1322]	180	kmyp = 0.25_wp * &
[978]	181	( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) )
[1322]	182	kmym = 0.25_wp * &
[978]	183	( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) )
[1]	184
	185	tend(k,j,i) = tend(k,j,i) &
	186	+ ( fwxp(j,i) * ( &
[978]	187	kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx &
	188	+ kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) &
[1]	189	) &
	190	- fwxm(j,i) * ( &
[978]	191	kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx &
	192	+ kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) &
[1]	193	) &
[56]	194	+ wall_w_x(j,i) * wsus(k,j,i) &
[1]	195	) * ddx &
	196	+ ( fwyp(j,i) * ( &
[978]	197	kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy &
	198	+ kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) &
[1]	199	) &
	200	- fwym(j,i) * ( &
[978]	201	kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy &
	202	+ kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) &
[1]	203	) &
[56]	204	+ wall_w_y(j,i) * wsvs(k,j,i) &
[1]	205	) * ddy &
[1340]	206	+ 2.0_wp * ( &
[1]	207	km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) &
	208	- km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) &
[1340]	209	) * ddzu(k+1)
[1]	210	ENDDO
	211	ENDIF
	212
	213	ENDDO
	214	ENDDO
	215
	216	END SUBROUTINE diffusion_w
	217
	218
	219	!------------------------------------------------------------------------------!
[1015]	220	! Call for all grid points - accelerator version
	221	!------------------------------------------------------------------------------!
	222	SUBROUTINE diffusion_w_acc
	223
[1320]	224	USE arrays_3d, &
	225	ONLY : ddzu, ddzw, km, tend, u, v, w
	226
	227	USE control_parameters, &
	228	ONLY : topography
	229
	230	USE grid_variables, &
	231	ONLY : ddx, ddy, fwxm, fwxp, fwym, fwyp, wall_w_x, wall_w_y
	232
	233	USE indices, &
	234	ONLY : i_left, i_right, j_north, j_south, nxl, nxr, nyn, nys, nzb, &
	235	nzb_w_inner, nzb_w_outer, nzt
	236
	237	USE kinds
[1015]	238
	239	IMPLICIT NONE
	240
[1320]	241	INTEGER(iwp) :: i !:
	242	INTEGER(iwp) :: j !:
	243	INTEGER(iwp) :: k !:
	244
	245	REAL(wp) :: kmxm !:
	246	REAL(wp) :: kmxp !:
	247	REAL(wp) :: kmym !:
	248	REAL(wp) :: kmyp !:
[1015]	249
[1320]	250	REAL(wp), DIMENSION(nzb:nzt+1,nys:nyn,nxl:nxr) :: wsus !:
	251	REAL(wp), DIMENSION(nzb:nzt+1,nys:nyn,nxl:nxr) :: wsvs !:
[1015]	252	!$acc declare create ( wsus, wsvs )
	253
	254	!
	255	!-- First calculate horizontal momentum flux w'u' and/or w'v' at vertical
	256	!-- walls, if neccessary
	257	IF ( topography /= 'flat' ) THEN
[1320]	258	CALL wall_fluxes_acc( wsus, 0.0_wp, 0.0_wp, 0.0_wp, 1.0_wp, &
	259	nzb_w_inner, nzb_w_outer, wall_w_x )
	260	CALL wall_fluxes_acc( wsvs, 0.0_wp, 0.0_wp, 0.0_wp, 1.0_wp, &
	261	nzb_w_inner, nzb_w_outer, wall_w_y )
[1015]	262	ENDIF
	263
	264	!$acc kernels present ( u, v, w, km, tend, vsws, vswst ) &
	265	!$acc present ( ddzu, ddzw, fwxm, fwxp, fwym, fwyp, wall_w_x, wall_w_y ) &
	266	!$acc present ( nzb_w_inner, nzb_w_outer )
[1128]	267	DO i = i_left, i_right
	268	DO j = j_south, j_north
[1015]	269	DO k = 1, nzt
	270	IF ( k > nzb_w_outer(j,i) ) THEN
	271	!
	272	!-- Interpolate eddy diffusivities on staggered gridpoints
[1322]	273	kmxp = 0.25_wp * &
[1015]	274	( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) )
[1322]	275	kmxm = 0.25_wp * &
[1015]	276	( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) )
[1322]	277	kmyp = 0.25_wp * &
[1015]	278	( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) )
[1322]	279	kmym = 0.25_wp * &
[1015]	280	( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) )
	281
	282	tend(k,j,i) = tend(k,j,i) &
	283	& + ( kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx &
	284	& + kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) &
	285	& - kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx &
	286	& - kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) &
	287	& ) * ddx &
	288	& + ( kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy &
	289	& + kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) &
	290	& - kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy &
	291	& - kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) &
	292	& ) * ddy &
[1322]	293	& + 2.0_wp * ( &
[1015]	294	& km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) &
	295	& - km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) &
[1340]	296	& ) * ddzu(k+1)
[1015]	297	ENDIF
	298	ENDDO
	299
	300	!
	301	!-- Wall functions at all vertical walls, where necessary
	302	DO k = 1,nzt
	303
	304	IF ( k > nzb_w_inner(j,i) .AND. k <= nzb_w_outer(j,i) .AND. &
[1340]	305	wall_w_x(j,i) /= 0.0_wp .AND. wall_w_y(j,i) /= 0.0_wp ) THEN
[1015]	306	!
	307	!-- Interpolate eddy diffusivities on staggered gridpoints
[1322]	308	kmxp = 0.25_wp * &
[1015]	309	( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) )
[1322]	310	kmxm = 0.25_wp * &
[1015]	311	( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) )
[1322]	312	kmyp = 0.25_wp * &
[1015]	313	( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) )
[1322]	314	kmym = 0.25_wp * &
[1015]	315	( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) )
	316
	317	tend(k,j,i) = tend(k,j,i) &
	318	+ ( fwxp(j,i) * ( &
	319	kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx &
	320	+ kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) &
	321	) &
	322	- fwxm(j,i) * ( &
	323	kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx &
	324	+ kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) &
	325	) &
	326	+ wall_w_x(j,i) * wsus(k,j,i) &
	327	) * ddx &
	328	+ ( fwyp(j,i) * ( &
	329	kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy &
	330	+ kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) &
	331	) &
	332	- fwym(j,i) * ( &
	333	kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy &
	334	+ kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) &
	335	) &
	336	+ wall_w_y(j,i) * wsvs(k,j,i) &
	337	) * ddy &
[1340]	338	+ 2.0_wp * ( &
[1015]	339	km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) &
	340	- km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) &
[1340]	341	) * ddzu(k+1)
[1015]	342	ENDIF
	343	ENDDO
	344
	345	ENDDO
	346	ENDDO
	347	!$acc end kernels
	348
	349	END SUBROUTINE diffusion_w_acc
	350
	351
	352	!------------------------------------------------------------------------------!
[1]	353	! Call for grid point i,j
	354	!------------------------------------------------------------------------------!
[1001]	355	SUBROUTINE diffusion_w_ij( i, j )
[1]	356
[1320]	357	USE arrays_3d, &
	358	ONLY : ddzu, ddzw, km, tend, u, v, w
	359
	360	USE control_parameters, &
	361	ONLY : topography
	362
	363	USE grid_variables, &
	364	ONLY : ddx, ddy, fwxm, fwxp, fwym, fwyp, wall_w_x, wall_w_y
	365
	366	USE indices, &
	367	ONLY : nxl, nxr, nyn, nys, nzb, nzb_w_inner, nzb_w_outer, nzt
	368
	369	USE kinds
[1]	370
	371	IMPLICIT NONE
	372
[1320]	373	INTEGER(iwp) :: i !:
	374	INTEGER(iwp) :: j !:
	375	INTEGER(iwp) :: k !:
	376
	377	REAL(wp) :: kmxm !:
	378	REAL(wp) :: kmxp !:
	379	REAL(wp) :: kmym !:
	380	REAL(wp) :: kmyp !:
[1]	381
[1320]	382	REAL(wp), DIMENSION(nzb:nzt+1) :: wsus
	383	REAL(wp), DIMENSION(nzb:nzt+1) :: wsvs
[1]	384
[1001]	385
[1]	386	DO k = nzb_w_outer(j,i)+1, nzt-1
	387	!
	388	!-- Interpolate eddy diffusivities on staggered gridpoints
[1322]	389	kmxp = 0.25_wp * ( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) )
	390	kmxm = 0.25_wp * ( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) )
	391	kmyp = 0.25_wp * ( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) )
	392	kmym = 0.25_wp * ( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) )
[1]	393
	394	tend(k,j,i) = tend(k,j,i) &
[978]	395	& + ( kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx &
	396	& + kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) &
	397	& - kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx &
	398	& - kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) &
[1]	399	& ) * ddx &
[978]	400	& + ( kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy &
	401	& + kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) &
	402	& - kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy &
	403	& - kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) &
[1]	404	& ) * ddy &
[1322]	405	& + 2.0_wp * ( &
[1]	406	& km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) &
	407	& - km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) &
[1340]	408	& ) * ddzu(k+1)
[1]	409	ENDDO
	410
	411	!
	412	!-- Wall functions at all vertical walls, where necessary
[1340]	413	IF ( wall_w_x(j,i) /= 0.0_wp .OR. wall_w_y(j,i) /= 0.0_wp ) THEN
[51]	414
	415	!
	416	!-- Calculate the horizontal momentum fluxes w'u' and/or w'v'
[1340]	417	IF ( wall_w_x(j,i) /= 0.0_wp ) THEN
[1320]	418	CALL wall_fluxes( i, j, nzb_w_inner(j,i)+1, nzb_w_outer(j,i), &
	419	wsus, 0.0_wp, 0.0_wp, 0.0_wp, 1.0_wp )
[51]	420	ELSE
[1340]	421	wsus = 0.0_wp
[51]	422	ENDIF
	423
[1340]	424	IF ( wall_w_y(j,i) /= 0.0_wp ) THEN
[1320]	425	CALL wall_fluxes( i, j, nzb_w_inner(j,i)+1, nzb_w_outer(j,i), &
	426	wsvs, 0.0_wp, 0.0_wp, 1.0_wp, 0.0_wp )
[51]	427	ELSE
[1340]	428	wsvs = 0.0_wp
[51]	429	ENDIF
	430
[1]	431	DO k = nzb_w_inner(j,i)+1, nzb_w_outer(j,i)
	432	!
	433	!-- Interpolate eddy diffusivities on staggered gridpoints
[1322]	434	kmxp = 0.25_wp * ( km(k,j,i)+km(k,j,i+1)+km(k+1,j,i)+km(k+1,j,i+1) )
	435	kmxm = 0.25_wp * ( km(k,j,i)+km(k,j,i-1)+km(k+1,j,i)+km(k+1,j,i-1) )
	436	kmyp = 0.25_wp * ( km(k,j,i)+km(k+1,j,i)+km(k,j+1,i)+km(k+1,j+1,i) )
	437	kmym = 0.25_wp * ( km(k,j,i)+km(k+1,j,i)+km(k,j-1,i)+km(k+1,j-1,i) )
[1]	438
	439	tend(k,j,i) = tend(k,j,i) &
	440	+ ( fwxp(j,i) * ( &
[978]	441	kmxp * ( w(k,j,i+1) - w(k,j,i) ) * ddx &
	442	+ kmxp * ( u(k+1,j,i+1) - u(k,j,i+1) ) * ddzu(k+1) &
[1]	443	) &
	444	- fwxm(j,i) * ( &
[978]	445	kmxm * ( w(k,j,i) - w(k,j,i-1) ) * ddx &
	446	+ kmxm * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) &
[1]	447	) &
[51]	448	+ wall_w_x(j,i) * wsus(k) &
[1]	449	) * ddx &
	450	+ ( fwyp(j,i) * ( &
[978]	451	kmyp * ( w(k,j+1,i) - w(k,j,i) ) * ddy &
	452	+ kmyp * ( v(k+1,j+1,i) - v(k,j+1,i) ) * ddzu(k+1) &
[1]	453	) &
	454	- fwym(j,i) * ( &
[978]	455	kmym * ( w(k,j,i) - w(k,j-1,i) ) * ddy &
	456	+ kmym * ( v(k+1,j,i) - v(k,j,i) ) * ddzu(k+1) &
[1]	457	) &
[51]	458	+ wall_w_y(j,i) * wsvs(k) &
[1]	459	) * ddy &
[1340]	460	+ 2.0_wp * ( &
[1]	461	km(k+1,j,i) * ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) &
	462	- km(k,j,i) * ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) &
[1340]	463	) * ddzu(k+1)
[1]	464	ENDDO
	465	ENDIF
	466
	467	END SUBROUTINE diffusion_w_ij
	468
[1323]	469	END MODULE diffusion_w_mod

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