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source: palm/trunk/SOURCE/coriolis.f90 @ 1876

Last change on this file since 1876 was 1874, checked in by maronga, 9 years ago
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1	!> @file coriolis.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 terms
6	! of the GNU General Public License as published by the Free Software Foundation,
7	! either version 3 of the License, or (at your option) any later version.
8	!
9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
10	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
11	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12	!
13	! You should have received a copy of the GNU General Public License along with
14	! PALM. If not, see <http://www.gnu.org/licenses/>.
15	!
16	! Copyright 1997-2016 Leibniz Universitaet Hannover
17	!--------------------------------------------------------------------------------!
18	!
19	! Current revisions:
20	! -----------------
21	!
22	!
23	! Former revisions:
24	! -----------------
25	! $Id: coriolis.f90 1874 2016-04-18 14:51:10Z raasch $
26	!
27	! 1873 2016-04-18 14:50:06Z maronga
28	! Module renamed (removed _mod)
29	!
30	!
31	! 1850 2016-04-08 13:29:27Z maronga
32	! Module renamed
33	!
34	!
35	! 1682 2015-10-07 23:56:08Z knoop
36	! Code annotations made doxygen readable
37	!
38	! 1353 2014-04-08 15:21:23Z heinze
39	! REAL constants provided with KIND-attribute
40	!
41	! 1320 2014-03-20 08:40:49Z raasch
42	! ONLY-attribute added to USE-statements,
43	! kind-parameters added to all INTEGER and REAL declaration statements,
44	! kinds are defined in new module kinds,
45	! revision history before 2012 removed,
46	! comment fields (!:) to be used for variable explanations added to
47	! all variable declaration statements
48	!
49	! 1257 2013-11-08 15:18:40Z raasch
50	! openacc loop and loop vector clauses removed
51	!
52	! 1128 2013-04-12 06:19:32Z raasch
53	! loop index bounds in accelerator version replaced by i_left, i_right, j_south,
54	! j_north
55	!
56	! 1036 2012-10-22 13:43:42Z raasch
57	! code put under GPL (PALM 3.9)
58	!
59	! 1015 2012-09-27 09:23:24Z raasch
60	! accelerator version (*_acc) added
61	!
62	! Revision 1.1 1997/08/29 08:57:38 raasch
63	! Initial revision
64	!
65	!
66	! Description:
67	! ------------
68	!> Computation of all Coriolis terms in the equations of motion.
69	!------------------------------------------------------------------------------!
70	MODULE coriolis_mod
71
72
73	PRIVATE
74	PUBLIC coriolis, coriolis_acc
75
76	INTERFACE coriolis
77	MODULE PROCEDURE coriolis
78	MODULE PROCEDURE coriolis_ij
79	END INTERFACE coriolis
80
81	INTERFACE coriolis_acc
82	MODULE PROCEDURE coriolis_acc
83	END INTERFACE coriolis_acc
84
85	CONTAINS
86
87
88	!------------------------------------------------------------------------------!
89	! Description:
90	! ------------
91	!> Call for all grid points
92	!------------------------------------------------------------------------------!
93	SUBROUTINE coriolis( component )
94
95	USE arrays_3d, &
96	ONLY: tend, u, ug, v, vg, w
97
98	USE control_parameters, &
99	ONLY: f, fs, message_string
100
101	USE indices, &
102	ONLY: nxl, nxlu, nxr, nyn, nys, nysv, nzb_u_inner, nzb_v_inner, &
103	nzb_w_inner, nzt
104
105	USE kinds
106
107	IMPLICIT NONE
108
109	INTEGER(iwp) :: component !<
110	INTEGER(iwp) :: i !<
111	INTEGER(iwp) :: j !<
112	INTEGER(iwp) :: k !<
113
114
115	!
116	!-- Compute Coriolis terms for the three velocity components
117	SELECT CASE ( component )
118
119	!
120	!-- u-component
121	CASE ( 1 )
122	DO i = nxlu, nxr
123	DO j = nys, nyn
124	DO k = nzb_u_inner(j,i)+1, nzt
125	tend(k,j,i) = tend(k,j,i) + f * ( 0.25_wp * &
126	( v(k,j,i-1) + v(k,j,i) + v(k,j+1,i-1) + &
127	v(k,j+1,i) ) - vg(k) ) &
128	- fs * ( 0.25_wp * &
129	( w(k-1,j,i-1) + w(k-1,j,i) + w(k,j,i-1) + &
130	w(k,j,i) ) &
131	)
132	ENDDO
133	ENDDO
134	ENDDO
135
136	!
137	!-- v-component
138	CASE ( 2 )
139	DO i = nxl, nxr
140	DO j = nysv, nyn
141	DO k = nzb_v_inner(j,i)+1, nzt
142	tend(k,j,i) = tend(k,j,i) - f * ( 0.25_wp * &
143	( u(k,j-1,i) + u(k,j,i) + u(k,j-1,i+1) + &
144	u(k,j,i+1) ) - ug(k) )
145	ENDDO
146	ENDDO
147	ENDDO
148
149	!
150	!-- w-component
151	CASE ( 3 )
152	DO i = nxl, nxr
153	DO j = nys, nyn
154	DO k = nzb_w_inner(j,i)+1, nzt
155	tend(k,j,i) = tend(k,j,i) + fs * 0.25_wp * &
156	( u(k,j,i) + u(k+1,j,i) + u(k,j,i+1) + &
157	u(k+1,j,i+1) )
158	ENDDO
159	ENDDO
160	ENDDO
161
162	CASE DEFAULT
163
164	WRITE( message_string, * ) ' wrong component: ', component
165	CALL message( 'coriolis', 'PA0173', 1, 2, 0, 6, 0 )
166
167	END SELECT
168
169	END SUBROUTINE coriolis
170
171
172	!------------------------------------------------------------------------------!
173	! Description:
174	! ------------
175	!> Call for all grid points - accelerator version
176	!------------------------------------------------------------------------------!
177	SUBROUTINE coriolis_acc( component )
178
179	USE arrays_3d, &
180	ONLY: tend, u, ug, v, vg, w
181
182	USE control_parameters, &
183	ONLY: f, fs, message_string
184
185	USE indices, &
186	ONLY: i_left, i_right, j_north, j_south, nzb_u_inner, &
187	nzb_v_inner, nzb_w_inner, nzt
188
189	USE kinds
190
191	IMPLICIT NONE
192
193	INTEGER(iwp) :: component !<
194	INTEGER(iwp) :: i !<
195	INTEGER(iwp) :: j !<
196	INTEGER(iwp) :: k !<
197
198
199	!
200	!-- Compute Coriolis terms for the three velocity components
201	SELECT CASE ( component )
202
203	!
204	!-- u-component
205	CASE ( 1 )
206	!$acc kernels present( nzb_u_inner, tend, v, vg, w )
207	DO i = i_left, i_right
208	DO j = j_south, j_north
209	DO k = 1, nzt
210	IF ( k > nzb_u_inner(j,i) ) THEN
211	tend(k,j,i) = tend(k,j,i) + f * ( 0.25_wp * &
212	( v(k,j,i-1) + v(k,j,i) + v(k,j+1,i-1) + &
213	v(k,j+1,i) ) - vg(k) ) &
214	- fs * ( 0.25_wp * &
215	( w(k-1,j,i-1) + w(k-1,j,i) + w(k,j,i-1) &
216	+ w(k,j,i) ) &
217	)
218	ENDIF
219	ENDDO
220	ENDDO
221	ENDDO
222	!$acc end kernels
223
224	!
225	!-- v-component
226	CASE ( 2 )
227	!$acc kernels present( nzb_v_inner, tend, u, ug )
228	DO i = i_left, i_right
229	DO j = j_south, j_north
230	DO k = 1, nzt
231	IF ( k > nzb_v_inner(j,i) ) THEN
232	tend(k,j,i) = tend(k,j,i) - f * ( 0.25_wp * &
233	( u(k,j-1,i) + u(k,j,i) + u(k,j-1,i+1) + &
234	u(k,j,i+1) ) - ug(k) )
235	ENDIF
236	ENDDO
237	ENDDO
238	ENDDO
239	!$acc end kernels
240
241	!
242	!-- w-component
243	CASE ( 3 )
244	!$acc kernels present( nzb_w_inner, tend, u )
245	DO i = i_left, i_right
246	DO j = j_south, j_north
247	DO k = 1, nzt
248	IF ( k > nzb_w_inner(j,i) ) THEN
249	tend(k,j,i) = tend(k,j,i) + fs * 0.25_wp * &
250	( u(k,j,i) + u(k+1,j,i) + u(k,j,i+1) + &
251	u(k+1,j,i+1) )
252	ENDIF
253	ENDDO
254	ENDDO
255	ENDDO
256	!$acc end kernels
257
258	CASE DEFAULT
259
260	WRITE( message_string, * ) ' wrong component: ', component
261	CALL message( 'coriolis', 'PA0173', 1, 2, 0, 6, 0 )
262
263	END SELECT
264
265	END SUBROUTINE coriolis_acc
266
267
268	!------------------------------------------------------------------------------!
269	! Description:
270	! ------------
271	!> Call for grid point i,j
272	!------------------------------------------------------------------------------!
273	SUBROUTINE coriolis_ij( i, j, component )
274
275	USE arrays_3d, &
276	ONLY: tend, u, ug, v, vg, w
277
278	USE control_parameters, &
279	ONLY: f, fs, message_string
280
281	USE indices, &
282	ONLY: nzb_u_inner, nzb_v_inner, nzb_w_inner, nzt
283
284	USE kinds
285
286	IMPLICIT NONE
287
288	INTEGER(iwp) :: component !<
289	INTEGER(iwp) :: i !<
290	INTEGER(iwp) :: j !<
291	INTEGER(iwp) :: k !<
292
293	!
294	!-- Compute Coriolis terms for the three velocity components
295	SELECT CASE ( component )
296
297	!
298	!-- u-component
299	CASE ( 1 )
300	DO k = nzb_u_inner(j,i)+1, nzt
301	tend(k,j,i) = tend(k,j,i) + f * ( 0.25_wp * &
302	( v(k,j,i-1) + v(k,j,i) + v(k,j+1,i-1) + &
303	v(k,j+1,i) ) - vg(k) ) &
304	- fs * ( 0.25_wp * &
305	( w(k-1,j,i-1) + w(k-1,j,i) + w(k,j,i-1) + &
306	w(k,j,i) ) )
307	ENDDO
308
309	!
310	!-- v-component
311	CASE ( 2 )
312	DO k = nzb_v_inner(j,i)+1, nzt
313	tend(k,j,i) = tend(k,j,i) - f * ( 0.25_wp * &
314	( u(k,j-1,i) + u(k,j,i) + u(k,j-1,i+1) + &
315	u(k,j,i+1) ) - ug(k) )
316	ENDDO
317
318	!
319	!-- w-component
320	CASE ( 3 )
321	DO k = nzb_w_inner(j,i)+1, nzt
322	tend(k,j,i) = tend(k,j,i) + fs * 0.25_wp * &
323	( u(k,j,i) + u(k+1,j,i) + u(k,j,i+1) + &
324	u(k+1,j,i+1) )
325	ENDDO
326
327	CASE DEFAULT
328
329	WRITE( message_string, * ) ' wrong component: ', component
330	CALL message( 'coriolis', 'PA0173', 1, 2, 0, 6, 0 )
331
332	END SELECT
333
334	END SUBROUTINE coriolis_ij
335
336	END MODULE coriolis_mod

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