source: palm/trunk/SOURCE/user_init_grid.f90 @ 1683

Last change on this file since 1683 was 1683, checked in by knoop, 6 years ago

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1!> @file user_init_grid.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 1997-2014 Leibniz Universitaet Hannover
17!--------------------------------------------------------------------------------!
18!
19! Current revisions:
20! -----------------
21!
22!
23! Former revisions:
24! -----------------
25! $Id: user_init_grid.f90 1683 2015-10-07 23:57:51Z knoop $
26!
27! 1682 2015-10-07 23:56:08Z knoop
28! Code annotations made doxygen readable
29!
30! 1320 2014-03-20 08:40:49Z raasch
31! kind-parameters added to all INTEGER and REAL declaration statements,
32! kinds are defined in new module kinds,
33! old module precision_kind is removed,
34! revision history before 2012 removed,
35! comment fields (!:) to be used for variable explanations added to
36! all variable declaration statements
37!
38! 1036 2012-10-22 13:43:42Z raasch
39! code put under GPL (PALM 3.9)
40!
41! 217 2008-12-09 18:00:48Z letzel
42! +topography_grid_convention
43! Former file user_interface.f90 split into one file per subroutine
44!
45! Description:
46! ------------
47!> Execution of user-defined grid initializing actions
48!> First argument gls contains the number of ghost layers, which is > 1 if the
49!> multigrid method for the pressure solver is used
50!------------------------------------------------------------------------------!
51 SUBROUTINE user_init_grid( gls, nzb_local )
52 
53
54    USE control_parameters
55   
56    USE indices
57   
58    USE kinds
59   
60    USE user
61
62    IMPLICIT NONE
63
64    INTEGER(iwp) ::  gls   !<
65
66    INTEGER(iwp),                                                              &
67       DIMENSION(-gls:ny+gls,-gls:nx+gls) ::                                   &
68          nzb_local   !<
69
70!
71!-- Here the user-defined grid initializing actions follow:
72
73!
74!-- Set the index array nzb_local for non-flat topography.
75!-- Here consistency checks concerning domain size and periodicity are necessary
76    SELECT CASE ( TRIM( topography ) )
77
78       CASE ( 'flat', 'single_building', 'single_street_canyon' )
79!
80!--       Not allowed here since these are the standard cases used in init_grid.
81
82       CASE ( 'user_defined_topography_1' )
83!
84!--       Here the user can define his own topography.
85!--       After definition, please remove the following three lines!
86          message_string = 'topography "' // topography // '" not available yet'
87          CALL message( 'user_init_grid', 'UI0005', 1, 2, 0, 6, 0 )
88
89       CASE DEFAULT
90!
91!--       The DEFAULT case is reached if the parameter topography contains a
92!--       wrong character string that is neither recognized in init_grid nor
93!--       here in user_init_grid.
94          message_string = 'unknown topography "' // topography // '"'
95          CALL message( 'user_init_grid', 'UI0006', 1, 2, 0, 6, 0 )
96
97    END SELECT
98
99
100 END SUBROUTINE user_init_grid
101
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