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source: palm/trunk/SOURCE/advec_u_up.f90 @ 3424

Last change on this file since 3424 was 2718, checked in by maronga, 7 years ago
deleting of deprecated files; headers updated where needed
Property svn:keywords set to `Id`
File size: 9.6 KB

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1	!> @file advec_u_up.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of the PALM model system.
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 1997-2018 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: advec_u_up.f90 2718 2018-01-02 08:49:38Z gronemeier $
27	! Corrected "Former revisions" section
28	!
29	! 2696 2017-12-14 17:12:51Z kanani
30	! Change in file header (GPL part)
31	!
32	! 2233 2017-05-30 18:08:54Z suehring
33	!
34	! 2232 2017-05-30 17:47:52Z suehring
35	! topography representation via flags
36	!
37	! 2000 2016-08-20 18:09:15Z knoop
38	! Forced header and separation lines into 80 columns
39	!
40	! 1873 2016-04-18 14:50:06Z maronga
41	! Module renamed (removed _mod)
42	!
43	!
44	! 1850 2016-04-08 13:29:27Z maronga
45	! Module renamed
46	!
47	!
48	! 1682 2015-10-07 23:56:08Z knoop
49	! Code annotations made doxygen readable
50	!
51	! 1353 2014-04-08 15:21:23Z heinze
52	! REAL constants provided with KIND-attribute
53	!
54	! 1320 2014-03-20 08:40:49Z raasch
55	! ONLY-attribute added to USE-statements,
56	! kind-parameters added to all INTEGER and REAL declaration statements,
57	! kinds are defined in new module kinds,
58	! revision history before 2012 removed,
59	! comment fields (!:) to be used for variable explanations added to
60	! all variable declaration statements
61	!
62	! 1036 2012-10-22 13:43:42Z raasch
63	! code put under GPL (PALM 3.9)
64	!
65	! Revision 1.1 1997/08/29 08:55:25 raasch
66	! Initial revision
67	!
68	!
69	! Description:
70	! ------------
71	!> Advection term for the u velocity-component using upstream scheme.
72	!> NOTE: vertical advection at k=1 still has wrong grid spacing for w>0!
73	!> The same problem occurs for all topography boundaries!
74	!------------------------------------------------------------------------------!
75	MODULE advec_u_up_mod
76
77
78	PRIVATE
79	PUBLIC advec_u_up
80
81	INTERFACE advec_u_up
82	MODULE PROCEDURE advec_u_up
83	MODULE PROCEDURE advec_u_up_ij
84	END INTERFACE advec_u_up
85
86	CONTAINS
87
88
89	!------------------------------------------------------------------------------!
90	! Description:
91	! ------------
92	!> Call for all grid points
93	!------------------------------------------------------------------------------!
94	SUBROUTINE advec_u_up
95
96	USE arrays_3d, &
97	ONLY: ddzu, tend, u, v, w
98
99	USE control_parameters, &
100	ONLY: u_gtrans, v_gtrans
101
102	USE grid_variables, &
103	ONLY: ddx, ddy
104
105	USE indices, &
106	ONLY: nxlu, nxr, nyn, nys, nzb, nzt, wall_flags_0
107
108	USE kinds
109
110
111	IMPLICIT NONE
112
113	INTEGER(iwp) :: i !<
114	INTEGER(iwp) :: j !<
115	INTEGER(iwp) :: k !<
116
117	REAL(wp) :: ukomp !<
118	REAL(wp) :: vkomp !<
119	REAL(wp) :: wkomp !<
120
121
122	DO i = nxlu, nxr
123	DO j = nys, nyn
124	DO k = nzb+1, nzt
125	!
126	!-- x-direction
127	ukomp = u(k,j,i) - u_gtrans
128	IF ( ukomp > 0.0_wp ) THEN
129	tend(k,j,i) = tend(k,j,i) - ukomp * &
130	( u(k,j,i) - u(k,j,i-1) ) * ddx &
131	* MERGE( 1.0_wp, 0.0_wp, &
132	BTEST( wall_flags_0(k,j,i), 1 ) )
133	ELSE
134	tend(k,j,i) = tend(k,j,i) - ukomp * &
135	( u(k,j,i+1) - u(k,j,i) ) * ddx &
136	* MERGE( 1.0_wp, 0.0_wp, &
137	BTEST( wall_flags_0(k,j,i), 1 ) )
138	ENDIF
139	!
140	!-- y-direction
141	vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + &
142	v(k,j,i-1) + v(k,j+1,i-1) ) - v_gtrans
143	IF ( vkomp > 0.0_wp ) THEN
144	tend(k,j,i) = tend(k,j,i) - vkomp * &
145	( u(k,j,i) - u(k,j-1,i) ) * ddy &
146	* MERGE( 1.0_wp, 0.0_wp, &
147	BTEST( wall_flags_0(k,j,i), 1 ) )
148	ELSE
149	tend(k,j,i) = tend(k,j,i) - vkomp * &
150	( u(k,j+1,i) - u(k,j,i) ) * ddy &
151	* MERGE( 1.0_wp, 0.0_wp, &
152	BTEST( wall_flags_0(k,j,i), 1 ) )
153	ENDIF
154	!
155	!-- z-direction
156	wkomp = 0.25_wp * ( w(k,j,i) + w(k-1,j,i) + &
157	w(k,j,i-1) + w(k-1,j,i-1) )
158	IF ( wkomp > 0.0_wp ) THEN
159	tend(k,j,i) = tend(k,j,i) - wkomp * &
160	( u(k,j,i) - u(k-1,j,i) ) * ddzu(k) &
161	* MERGE( 1.0_wp, 0.0_wp, &
162	BTEST( wall_flags_0(k,j,i), 1 ) )
163	ELSE
164	tend(k,j,i) = tend(k,j,i) - wkomp * &
165	( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) &
166	* MERGE( 1.0_wp, 0.0_wp, &
167	BTEST( wall_flags_0(k,j,i), 1 ) )
168	ENDIF
169
170	ENDDO
171	ENDDO
172	ENDDO
173
174	END SUBROUTINE advec_u_up
175
176
177	!------------------------------------------------------------------------------!
178	! Description:
179	! ------------
180	!> Call for grid point i,j
181	!------------------------------------------------------------------------------!
182	SUBROUTINE advec_u_up_ij( i, j )
183
184	USE arrays_3d, &
185	ONLY: ddzu, tend, u, v, w
186
187	USE control_parameters, &
188	ONLY: u_gtrans, v_gtrans
189
190	USE grid_variables, &
191	ONLY: ddx, ddy
192
193	USE indices, &
194	ONLY: nzb, nzt, wall_flags_0
195
196	USE kinds
197
198
199	IMPLICIT NONE
200
201	INTEGER(iwp) :: i !<
202	INTEGER(iwp) :: j !<
203	INTEGER(iwp) :: k !<
204
205	REAL(wp) :: ukomp !<
206	REAL(wp) :: vkomp !<
207	REAL(wp) :: wkomp !<
208
209
210	DO k = nzb+1, nzt
211	!
212	!-- x-direction
213	ukomp = u(k,j,i) - u_gtrans
214	IF ( ukomp > 0.0_wp ) THEN
215	tend(k,j,i) = tend(k,j,i) - ukomp * &
216	( u(k,j,i) - u(k,j,i-1) ) * ddx &
217	* MERGE( 1.0_wp, 0.0_wp, &
218	BTEST( wall_flags_0(k,j,i), 1 ) )
219	ELSE
220	tend(k,j,i) = tend(k,j,i) - ukomp * &
221	( u(k,j,i+1) - u(k,j,i) ) * ddx &
222	* MERGE( 1.0_wp, 0.0_wp, &
223	BTEST( wall_flags_0(k,j,i), 1 ) )
224	ENDIF
225	!
226	!-- y-direction
227	vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + v(k,j,i-1) + v(k,j+1,i-1) &
228	) - v_gtrans
229	IF ( vkomp > 0.0_wp ) THEN
230	tend(k,j,i) = tend(k,j,i) - vkomp * &
231	( u(k,j,i) - u(k,j-1,i) ) * ddy &
232	* MERGE( 1.0_wp, 0.0_wp, &
233	BTEST( wall_flags_0(k,j,i), 1 ) )
234	ELSE
235	tend(k,j,i) = tend(k,j,i) - vkomp * &
236	( u(k,j+1,i) - u(k,j,i) ) * ddy &
237	* MERGE( 1.0_wp, 0.0_wp, &
238	BTEST( wall_flags_0(k,j,i), 1 ) )
239	ENDIF
240	!
241	!-- z-direction
242	wkomp = 0.25_wp * ( w(k,j,i) + w(k-1,j,i) + w(k,j,i-1) + w(k-1,j,i-1) )
243	IF ( wkomp > 0.0_wp ) THEN
244	tend(k,j,i) = tend(k,j,i) - wkomp * &
245	( u(k,j,i) - u(k-1,j,i) ) * ddzu(k) &
246	* MERGE( 1.0_wp, 0.0_wp, &
247	BTEST( wall_flags_0(k,j,i), 1 ) )
248	ELSE
249	tend(k,j,i) = tend(k,j,i) - wkomp * &
250	( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) &
251	* MERGE( 1.0_wp, 0.0_wp, &
252	BTEST( wall_flags_0(k,j,i), 1 ) )
253	ENDIF
254
255	ENDDO
256
257	END SUBROUTINE advec_u_up_ij
258
259	END MODULE advec_u_up_mod

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