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source: palm/trunk/SOURCE/plant_canopy_model.f90 @ 1207

Last change on this file since 1207 was 1037, checked in by raasch, 12 years ago
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1	MODULE plant_canopy_model_mod
2
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	!
17	! Copyright 1997-2012 Leibniz University Hannover
18	!--------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: plant_canopy_model.f90 1037 2012-10-22 14:10:22Z witha $
27	!
28	! 1036 2012-10-22 13:43:42Z raasch
29	! code put under GPL (PALM 3.9)
30	!
31	! 257 2009-03-11 15:17:42Z heinze
32	! Output of messages replaced by message handling routine.
33	! Bugfix: remove IF statement in plant_canopy_model_ij
34	!
35	! 153 2008-03-19 09:41:30Z steinfeld
36	! heat sources within the forest canopy are added, which represent the
37	! rate of heat input into the air from the forest leaves, evaluation of sinks
38	! and sources for scalar concentration due to canopy elements
39	!
40	! 138 2007-11-28 10:03:58Z letzel
41	! Initial revision
42	!
43	! Description:
44	! ------------
45	! Evaluation of sinks and sources of momentum, heat and scalar concentration
46	! due to canopy elements
47	!------------------------------------------------------------------------------!
48
49	PRIVATE
50	PUBLIC plant_canopy_model
51
52	INTERFACE plant_canopy_model
53	MODULE PROCEDURE plant_canopy_model
54	MODULE PROCEDURE plant_canopy_model_ij
55	END INTERFACE plant_canopy_model
56
57	CONTAINS
58
59
60	!------------------------------------------------------------------------------!
61	! Call for all grid points
62	!------------------------------------------------------------------------------!
63	SUBROUTINE plant_canopy_model( component )
64
65	USE arrays_3d
66	USE control_parameters
67	USE indices
68	USE pegrid
69
70	IMPLICIT NONE
71
72	INTEGER :: component, i, j, k
73
74	!
75	!-- Compute drag for the three velocity components and the SGS-TKE
76	SELECT CASE ( component )
77
78	!
79	!-- u-component
80	CASE ( 1 )
81	DO i = nxlu, nxr
82	DO j = nys, nyn
83	DO k = nzb_u_inner(j,i)+1, pch_index
84	tend(k,j,i) = tend(k,j,i) - &
85	cdc(k,j,i) * lad_u(k,j,i) * &
86	SQRT( u(k,j,i)**2 + &
87	( ( v(k,j,i-1) + &
88	v(k,j,i) + &
89	v(k,j+1,i) + &
90	v(k,j+1,i-1) ) &
91	/ 4.0 )**2 + &
92	( ( w(k-1,j,i-1) + &
93	w(k-1,j,i) + &
94	w(k,j,i-1) + &
95	w(k,j,i) ) &
96	/ 4.0 )*2 ) &
97	u(k,j,i)
98	ENDDO
99	ENDDO
100	ENDDO
101
102	!
103	!-- v-component
104	CASE ( 2 )
105	DO i = nxl, nxr
106	DO j = nysv, nyn
107	DO k = nzb_v_inner(j,i)+1, pch_index
108	tend(k,j,i) = tend(k,j,i) - &
109	cdc(k,j,i) * lad_v(k,j,i) * &
110	SQRT( ( ( u(k,j-1,i) + &
111	u(k,j-1,i+1) + &
112	u(k,j,i) + &
113	u(k,j,i+1) ) &
114	/ 4.0 )**2 + &
115	v(k,j,i)**2 + &
116	( ( w(k-1,j-1,i) + &
117	w(k-1,j,i) + &
118	w(k,j-1,i) + &
119	w(k,j,i) ) &
120	/ 4.0 )*2 ) &
121	v(k,j,i)
122	ENDDO
123	ENDDO
124	ENDDO
125
126	!
127	!-- w-component
128	CASE ( 3 )
129	DO i = nxl, nxr
130	DO j = nys, nyn
131	DO k = nzb_w_inner(j,i)+1, pch_index
132	tend(k,j,i) = tend(k,j,i) - &
133	cdc(k,j,i) * lad_w(k,j,i) * &
134	SQRT( ( ( u(k,j,i) + &
135	u(k,j,i+1) + &
136	u(k+1,j,i) + &
137	u(k+1,j,i+1) ) &
138	/ 4.0 )**2 + &
139	( ( v(k,j,i) + &
140	v(k,j+1,i) + &
141	v(k+1,j,i) + &
142	v(k+1,j+1,i) ) &
143	/ 4.0 )**2 + &
144	w(k,j,i)*2 ) &
145	w(k,j,i)
146	ENDDO
147	ENDDO
148	ENDDO
149
150	!
151	!-- potential temperature
152	CASE ( 4 )
153	DO i = nxl, nxr
154	DO j = nys, nyn
155	DO k = nzb_s_inner(j,i)+1, pch_index
156	tend(k,j,i) = tend(k,j,i) + &
157	( canopy_heat_flux(k,j,i) - &
158	canopy_heat_flux(k-1,j,i) ) / &
159	dzw(k)
160	ENDDO
161	ENDDO
162	ENDDO
163
164	!
165	!-- scalar concentration
166	CASE ( 5 )
167	DO i = nxl, nxr
168	DO j = nys, nyn
169	DO k = nzb_s_inner(j,i)+1, pch_index
170	tend(k,j,i) = tend(k,j,i) - &
171	sec(k,j,i) * lad_s(k,j,i) * &
172	SQRT( ( ( u(k,j,i) + &
173	u(k,j,i+1) ) &
174	/ 2.0 )**2 + &
175	( ( v(k,j,i) + &
176	v(k,j+1,i) ) &
177	/ 2.0 )**2 + &
178	( ( w(k-1,j,i) + &
179	w(k,j,i) ) &
180	/ 2.0 )*2 ) &
181	( q(k,j,i) - sls(k,j,i) )
182	ENDDO
183	ENDDO
184	ENDDO
185
186	!
187	!-- sgs-tke
188	CASE ( 6 )
189	DO i = nxl, nxr
190	DO j = nys, nyn
191	DO k = nzb_s_inner(j,i)+1, pch_index
192	tend(k,j,i) = tend(k,j,i) - &
193	2.0 * cdc(k,j,i) * lad_s(k,j,i) * &
194	SQRT( ( ( u(k,j,i) + &
195	u(k,j,i+1) ) &
196	/ 2.0 )**2 + &
197	( ( v(k,j,i) + &
198	v(k,j+1,i) ) &
199	/ 2.0 )**2 + &
200	( ( w(k,j,i) + &
201	w(k+1,j,i) ) &
202	/ 2.0 )*2 ) &
203	e(k,j,i)
204	ENDDO
205	ENDDO
206	ENDDO
207
208	CASE DEFAULT
209
210	WRITE( message_string, * ) 'wrong component: ', component
211	CALL message( 'plant_canopy_model', 'PA0279', 1, 2, 0, 6, 0 )
212
213	END SELECT
214
215	END SUBROUTINE plant_canopy_model
216
217
218	!------------------------------------------------------------------------------!
219	! Call for grid point i,j
220	!------------------------------------------------------------------------------!
221	SUBROUTINE plant_canopy_model_ij( i, j, component )
222
223	USE arrays_3d
224	USE control_parameters
225	USE indices
226	USE pegrid
227
228	IMPLICIT NONE
229
230	INTEGER :: component, i, j, k
231
232	!
233	!-- Compute drag for the three velocity components
234	SELECT CASE ( component )
235
236	!
237	!-- u-component
238	CASE ( 1 )
239	DO k = nzb_u_inner(j,i)+1, pch_index
240	tend(k,j,i) = tend(k,j,i) - &
241	cdc(k,j,i) * lad_u(k,j,i) * &
242	SQRT( u(k,j,i)**2 + &
243	( ( v(k,j,i-1) + &
244	v(k,j,i) + &
245	v(k,j+1,i) + &
246	v(k,j+1,i-1) ) &
247	/ 4.0 )**2 + &
248	( ( w(k-1,j,i-1) + &
249	w(k-1,j,i) + &
250	w(k,j,i-1) + &
251	w(k,j,i) ) &
252	/ 4.0 )*2 ) &
253	u(k,j,i)
254	ENDDO
255
256	!
257	!-- v-component
258	CASE ( 2 )
259	DO k = nzb_v_inner(j,i)+1, pch_index
260	tend(k,j,i) = tend(k,j,i) - &
261	cdc(k,j,i) * lad_v(k,j,i) * &
262	SQRT( ( ( u(k,j-1,i) + &
263	u(k,j-1,i+1) + &
264	u(k,j,i) + &
265	u(k,j,i+1) ) &
266	/ 4.0 )**2 + &
267	v(k,j,i)**2 + &
268	( ( w(k-1,j-1,i) + &
269	w(k-1,j,i) + &
270	w(k,j-1,i) + &
271	w(k,j,i) ) &
272	/ 4.0 )*2 ) &
273	v(k,j,i)
274	ENDDO
275
276	!
277	!-- w-component
278	CASE ( 3 )
279	DO k = nzb_w_inner(j,i)+1, pch_index
280	tend(k,j,i) = tend(k,j,i) - &
281	cdc(k,j,i) * lad_w(k,j,i) * &
282	SQRT( ( ( u(k,j,i) + &
283	u(k,j,i+1) + &
284	u(k+1,j,i) + &
285	u(k+1,j,i+1) ) &
286	/ 4.0 )**2 + &
287	( ( v(k,j,i) + &
288	v(k,j+1,i) + &
289	v(k+1,j,i) + &
290	v(k+1,j+1,i) ) &
291	/ 4.0 )**2 + &
292	w(k,j,i)*2 ) &
293	w(k,j,i)
294
295	ENDDO
296
297	!
298	!-- potential temperature
299	CASE ( 4 )
300	DO k = nzb_s_inner(j,i)+1, pch_index
301	tend(k,j,i) = tend(k,j,i) + &
302	( canopy_heat_flux(k,j,i) - &
303	canopy_heat_flux(k-1,j,i) ) / &
304	dzw(k)
305	ENDDO
306
307
308	!
309	!-- scalar concentration
310	CASE ( 5 )
311	DO k = nzb_s_inner(j,i)+1, pch_index
312	tend(k,j,i) = tend(k,j,i) - &
313	sec(k,j,i) * lad_s(k,j,i) * &
314	SQRT( ( ( u(k,j,i) + &
315	u(k,j,i+1) ) &
316	/ 2.0 )**2 + &
317	( ( v(k,j,i) + &
318	v(k,j+1,i) ) &
319	/ 2.0 )**2 + &
320	( ( w(k-1,j,i) + &
321	w(k,j,i) ) &
322	/ 2.0 )*2 ) &
323	( q(k,j,i) - sls(k,j,i) )
324	ENDDO
325
326	!
327	!-- sgs-tke
328	CASE ( 6 )
329	DO k = nzb_s_inner(j,i)+1, pch_index
330	tend(k,j,i) = tend(k,j,i) - &
331	2.0 * cdc(k,j,i) * lad_s(k,j,i) * &
332	SQRT( ( ( u(k,j,i) + &
333	u(k,j,i+1) ) &
334	/ 2.0 )**2 + &
335	( ( v(k,j,i) + &
336	v(k,j+1,i) ) &
337	/ 2.0 )**2 + &
338	( ( w(k,j,i) + &
339	w(k+1,j,i) ) &
340	/ 2.0 )*2 ) &
341	e(k,j,i)
342	ENDDO
343
344	CASE DEFAULT
345
346	WRITE( message_string, * ) 'wrong component: ', component
347	CALL message( 'plant_canopy_model', 'PA0279', 1, 2, 0, 6, 0 )
348
349	END SELECT
350
351	END SUBROUTINE plant_canopy_model_ij
352
353	END MODULE plant_canopy_model_mod

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