source: palm/trunk/SOURCE/advec_u_pw.f90 @ 3768

Last change on this file since 3768 was 3655, checked in by knoop, 3 years ago

Bugfix: made "unit" and "found" intend INOUT in module interface subroutines + automatic copyright update

  • Property svn:keywords set to Id
File size: 6.6 KB
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1!> @file advec_u_pw.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 1997-2019 Leibniz Universitaet Hannover
18!------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22!
23!
24! Former revisions:
25! -----------------
26! $Id: advec_u_pw.f90 3655 2019-01-07 16:51:22Z raasch $
27! variables documented
28!
29! 3538 2018-11-20 10:55:41Z suehring
30! Remove unnecessary double-masking of topography
31!
32! 2718 2018-01-02 08:49:38Z maronga
33! Corrected "Former revisions" section
34!
35! 2696 2017-12-14 17:12:51Z kanani
36! Change in file header (GPL part)
37!
38! 2233 2017-05-30 18:08:54Z suehring
39!
40! 2232 2017-05-30 17:47:52Z suehring
41! topography representation via flags
42!
43! 2000 2016-08-20 18:09:15Z knoop
44! Forced header and separation lines into 80 columns
45!
46! 1873 2016-04-18 14:50:06Z maronga
47! Module renamed (removed _mod)
48!
49!
50! 1850 2016-04-08 13:29:27Z maronga
51! Module renamed
52!
53!
54! 1682 2015-10-07 23:56:08Z knoop
55! Code annotations made doxygen readable
56!
57! 1353 2014-04-08 15:21:23Z heinze
58! REAL constants provided with KIND-attribute
59!
60! 1320 2014-03-20 08:40:49Z raasch
61! ONLY-attribute added to USE-statements,
62! kind-parameters added to all INTEGER and REAL declaration statements,
63! kinds are defined in new module kinds,
64! revision history before 2012 removed,
65! comment fields (!:) to be used for variable explanations added to
66! all variable declaration statements
67!
68! 1036 2012-10-22 13:43:42Z raasch
69! code put under GPL (PALM 3.9)
70!
71! Revision 1.1  1997/08/11 06:09:21  raasch
72! Initial revision
73!
74!
75! Description:
76! ------------
77!> Advection term for u velocity-component using Piacsek and Williams.
78!> Vertical advection at the first grid point above the surface is done with
79!> normal centred differences, because otherwise no information from the surface
80!> would be communicated upwards due to w=0 at K=nzb.
81!------------------------------------------------------------------------------!
82 MODULE advec_u_pw_mod
83 
84
85    PRIVATE
86    PUBLIC advec_u_pw
87
88    INTERFACE advec_u_pw
89       MODULE PROCEDURE advec_u_pw
90       MODULE PROCEDURE advec_u_pw_ij
91    END INTERFACE advec_u_pw
92 
93 CONTAINS
94
95
96!------------------------------------------------------------------------------!
97! Description:
98! ------------
99!> Call for all grid points
100!------------------------------------------------------------------------------!
101    SUBROUTINE advec_u_pw
102
103       USE arrays_3d,                                                          &
104           ONLY:  ddzw, tend, u, v, w
105
106       USE control_parameters,                                                 &
107           ONLY:  u_gtrans, v_gtrans
108
109       USE grid_variables,                                                     &
110           ONLY:  ddx, ddy
111
112       USE indices,                                                            &
113           ONLY:  nxlu, nxr, nyn, nys, nzb, nzt
114
115       USE kinds
116
117
118       IMPLICIT NONE
119
120       INTEGER(iwp) ::  i !< grid index along x-direction
121       INTEGER(iwp) ::  j !< grid index along y-direction
122       INTEGER(iwp) ::  k !< grid index along z-direction
123       
124       REAL(wp)    ::  gu !< Galilei-transformation velocity along x
125       REAL(wp)    ::  gv !< Galilei-transformation velocity along y
126 
127       gu = 2.0_wp * u_gtrans
128       gv = 2.0_wp * v_gtrans
129       DO  i = nxlu, nxr
130          DO  j = nys, nyn
131             DO  k = nzb+1, nzt
132                tend(k,j,i) = tend(k,j,i) - 0.25_wp * (                        &
133                         ( u(k,j,i+1) * ( u(k,j,i+1) + u(k,j,i) - gu )         &
134                         - u(k,j,i-1) * ( u(k,j,i) + u(k,j,i-1) - gu ) ) * ddx &
135                       + ( u(k,j+1,i) * ( v(k,j+1,i) + v(k,j+1,i-1) - gv )     &
136                         - u(k,j-1,i) * ( v(k,j,i) + v(k,j,i-1) - gv ) ) * ddy &
137                       + ( u(k+1,j,i) * ( w(k,j,i) + w(k,j,i-1) )              &
138                         - u(k-1,j,i) * ( w(k-1,j,i) + w(k-1,j,i-1) ) )        &
139                                                                  * ddzw(k)    &
140                                                      )
141             ENDDO
142          ENDDO
143       ENDDO
144
145    END SUBROUTINE advec_u_pw
146
147
148!------------------------------------------------------------------------------!
149! Description:
150! ------------
151!> Call for grid point i,j
152!------------------------------------------------------------------------------!
153    SUBROUTINE advec_u_pw_ij( i, j )
154
155       USE arrays_3d,                                                          &
156           ONLY:  ddzw, tend, u, v, w
157
158       USE control_parameters,                                                 &
159           ONLY:  u_gtrans, v_gtrans
160
161       USE grid_variables,                                                     &
162           ONLY:  ddx, ddy
163
164       USE indices,                                                            &
165           ONLY:  nzb, nzt
166
167       USE kinds
168
169
170       IMPLICIT NONE
171
172       INTEGER(iwp) ::  i !< grid index along x-direction
173       INTEGER(iwp) ::  j !< grid index along y-direction
174       INTEGER(iwp) ::  k !< grid index along z-direction
175       
176       REAL(wp)    ::  gu !< Galilei-transformation velocity along x
177       REAL(wp)    ::  gv !< Galilei-transformation velocity along y
178
179       gu = 2.0_wp * u_gtrans
180       gv = 2.0_wp * v_gtrans
181       DO  k = nzb+1, nzt
182          tend(k,j,i) = tend(k,j,i) - 0.25_wp * (                              &
183                         ( u(k,j,i+1) * ( u(k,j,i+1) + u(k,j,i) - gu )         &
184                         - u(k,j,i-1) * ( u(k,j,i) + u(k,j,i-1) - gu ) ) * ddx &
185                       + ( u(k,j+1,i) * ( v(k,j+1,i) + v(k,j+1,i-1) - gv )     &
186                         - u(k,j-1,i) * ( v(k,j,i) + v(k,j,i-1) - gv ) ) * ddy &
187                       + ( u(k+1,j,i) * ( w(k,j,i) + w(k,j,i-1) )              &
188                         - u(k-1,j,i) * ( w(k-1,j,i) + w(k-1,j,i-1) ) )        &
189                                                                  * ddzw(k)    &
190                                                )
191       ENDDO
192
193    END SUBROUTINE advec_u_pw_ij
194
195 END MODULE advec_u_pw_mod
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