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source: palm/trunk/SOURCE/plant_canopy_model.f90 @ 145

Last change on this file since 145 was 142, checked in by letzel, 17 years ago
Bugfix in plant_canopy_model: remove IF statement in plant_canopy_model_ij Bugfix in flow_statistics: divide sums(k,8) (e) and sums(k,34) (e*) by ngp_2dh_s_inner(k,sr) (like other scalars)
Property svn:keywords set to `Id`
File size: 10.2 KB

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1	MODULE plant_canopy_model_mod
2
3	!------------------------------------------------------------------------------!
4	! Actual revisions:
5	! -----------------
6	! Bugfix: remove IF statement in plant_canopy_model_ij
7	!
8	! Former revisions:
9	! -----------------
10	! $Id: plant_canopy_model.f90 142 2007-12-04 12:36:44Z raasch $
11	!
12	! 138 2007-11-28 10:03:58Z letzel
13	! Initial revision
14	!
15	! Description:
16	! ------------
17	! Evaluation of the drag due to vegetation
18	!------------------------------------------------------------------------------!
19
20	PRIVATE
21	PUBLIC plant_canopy_model
22
23	INTERFACE plant_canopy_model
24	MODULE PROCEDURE plant_canopy_model
25	MODULE PROCEDURE plant_canopy_model_ij
26	END INTERFACE plant_canopy_model
27
28	CONTAINS
29
30
31	!------------------------------------------------------------------------------!
32	! Call for all grid points
33	!------------------------------------------------------------------------------!
34	SUBROUTINE plant_canopy_model( component )
35
36	USE arrays_3d
37	USE control_parameters
38	USE indices
39	USE pegrid
40
41	IMPLICIT NONE
42
43	INTEGER :: component, i, j, k
44
45	!
46	!-- Compute drag for the three velocity components and the SGS-TKE
47	SELECT CASE ( component )
48
49	!
50	!-- u-component
51	CASE ( 1 )
52	DO i = nxlu, nxr
53	DO j = nys, nyn
54	DO k = nzb_u_inner(j,i)+1, pch_index
55	tend(k,j,i) = tend(k,j,i) - &
56	cdc(k,j,i) * lad_u(k,j,i) * &
57	SQRT( u(k,j,i)**2 + &
58	( ( v(k,j,i-1) + &
59	v(k,j,i) + &
60	v(k,j+1,i) + &
61	v(k,j+1,i+1) ) &
62	/ 4.0 )**2 + &
63	( ( w(k-1,j,i-1) + &
64	w(k-1,j,i) + &
65	w(k,j,i-1) + &
66	w(k,j,i) ) &
67	/ 4.0 )*2 ) &
68	u(k,j,i)
69	ENDDO
70	ENDDO
71	ENDDO
72
73	!
74	!-- v-component
75	CASE ( 2 )
76	DO i = nxl, nxr
77	DO j = nysv, nyn
78	DO k = nzb_v_inner(j,i)+1, pch_index
79	tend(k,j,i) = tend(k,j,i) - &
80	cdc(k,j,i) * lad_v(k,j,i) * &
81	SQRT( ( ( u(k,j-1,i) + &
82	u(k,j-1,i+1) + &
83	u(k,j,i) + &
84	u(k,j,i+1) ) &
85	/ 4.0 )**2 + &
86	v(k,j,i)**2 + &
87	( ( w(k-1,j-1,i) + &
88	w(k-1,j,i) + &
89	w(k,j-1,i) + &
90	w(k,j,i) ) &
91	/ 4.0 )*2 ) &
92	v(k,j,i)
93	ENDDO
94	ENDDO
95	ENDDO
96
97	!
98	!-- w-component
99	CASE ( 3 )
100	DO i = nxl, nxr
101	DO j = nys, nyn
102	DO k = nzb_w_inner(j,i)+1, pch_index
103	tend(k,j,i) = tend(k,j,i) - &
104	cdc(k,j,i) * lad_w(k,j,i) * &
105	SQRT( ( ( u(k,j,i) + &
106	u(k,j,i+1) + &
107	u(k+1,j,i) + &
108	u(k+1,j,i+1) ) &
109	/ 4.0 )**2 + &
110	( ( v(k,j,i) + &
111	v(k,j+1,i) + &
112	v(k+1,j,i) + &
113	v(k+1,j+1,i) ) &
114	/ 4.0 )**2 + &
115	w(k,j,i)*2 ) &
116	w(k,j,i)
117	ENDDO
118	ENDDO
119	ENDDO
120
121	!
122	!-- sgs-tke
123	CASE ( 4 )
124	DO i = nxl, nxr
125	DO j = nys, nyn
126	DO k = nzb_s_inner(j,i)+1, pch_index
127	tend(k,j,i) = tend(k,j,i) - &
128	2.0 * cdc(k,j,i) * lad_s(k,j,i) * &
129	SQRT( ( ( u(k,j,i) + &
130	u(k,j,i+1) ) &
131	/ 2.0 )**2 + &
132	( ( v(k,j,i) + &
133	v(k,j+1,i) ) &
134	/ 2.0 )**2 + &
135	( ( w(k,j,i) + &
136	w(k+1,j,i) ) &
137	/ 2.0 )*2 ) &
138	e(k,j,i)
139	ENDDO
140	ENDDO
141	ENDDO
142
143	CASE DEFAULT
144
145	IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', &
146	component
147	CALL local_stop
148
149	END SELECT
150
151	END SUBROUTINE plant_canopy_model
152
153
154	!------------------------------------------------------------------------------!
155	! Call for grid point i,j
156	!------------------------------------------------------------------------------!
157	SUBROUTINE plant_canopy_model_ij( i, j, component )
158
159	USE arrays_3d
160	USE control_parameters
161	USE indices
162	USE pegrid
163
164	IMPLICIT NONE
165
166	INTEGER :: component, i, j, k
167
168	!
169	!-- Compute drag for the three velocity components
170	SELECT CASE ( component )
171
172	!
173	!-- u-component
174	CASE ( 1 )
175	DO k = nzb_u_inner(j,i)+1, pch_index
176	tend(k,j,i) = tend(k,j,i) - &
177	cdc(k,j,i) * lad_u(k,j,i) * &
178	SQRT( u(k,j,i)**2 + &
179	( ( v(k,j,i-1) + &
180	v(k,j,i) + &
181	v(k,j+1,i) + &
182	v(k,j+1,i+1) ) &
183	/ 4.0 )**2 + &
184	( ( w(k-1,j,i-1) + &
185	w(k-1,j,i) + &
186	w(k,j,i-1) + &
187	w(k,j,i) ) &
188	/ 4.0 )*2 ) &
189	u(k,j,i)
190	ENDDO
191
192	!
193	!-- v-component
194	CASE ( 2 )
195	DO k = nzb_v_inner(j,i)+1, pch_index
196	tend(k,j,i) = tend(k,j,i) - &
197	cdc(k,j,i) * lad_v(k,j,i) * &
198	SQRT( ( ( u(k,j-1,i) + &
199	u(k,j-1,i+1) + &
200	u(k,j,i) + &
201	u(k,j,i+1) ) &
202	/ 4.0 )**2 + &
203	v(k,j,i)**2 + &
204	( ( w(k-1,j-1,i) + &
205	w(k-1,j,i) + &
206	w(k,j-1,i) + &
207	w(k,j,i) ) &
208	/ 4.0 )*2 ) &
209	v(k,j,i)
210	ENDDO
211
212	!
213	!-- w-component
214	CASE ( 3 )
215	DO k = nzb_w_inner(j,i)+1, pch_index
216	tend(k,j,i) = tend(k,j,i) - &
217	cdc(k,j,i) * lad_w(k,j,i) * &
218	SQRT( ( ( u(k,j,i) + &
219	u(k,j,i+1) + &
220	u(k+1,j,i) + &
221	u(k+1,j,i+1) ) &
222	/ 4.0 )**2 + &
223	( ( v(k,j,i) + &
224	v(k,j+1,i) + &
225	v(k+1,j,i) + &
226	v(k+1,j+1,i) ) &
227	/ 4.0 )**2 + &
228	w(k,j,i)*2 ) &
229	w(k,j,i)
230
231	ENDDO
232
233	!
234	!-- sgs-tke
235	CASE ( 4 )
236	DO k = nzb_s_inner(j,i)+1, pch_index
237	tend(k,j,i) = tend(k,j,i) - &
238	2.0 * cdc(k,j,i) * lad_s(k,j,i) * &
239	SQRT( ( ( u(k,j,i) + &
240	u(k,j,i+1) ) &
241	/ 2.0 )**2 + &
242	( ( v(k,j,i) + &
243	v(k,j+1,i) ) &
244	/ 2.0 )**2 + &
245	( ( w(k,j,i) + &
246	w(k+1,j,i) ) &
247	/ 2.0 )*2 ) &
248	e(k,j,i)
249	ENDDO
250
251	CASE DEFAULT
252
253	IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', &
254	component
255	CALL local_stop
256
257	END SELECT
258
259	END SUBROUTINE plant_canopy_model_ij
260
261	END MODULE plant_canopy_model_mod

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