source: LMDZ6/trunk/libf/dyn3d_common/adaptdt.f90 @ 5271

Last change on this file since 5271 was 5271, checked in by abarral, 26 hours ago

Move dimensions.h into a module
Nb: doesn't compile yet

  • Property copyright set to
    Name of program: LMDZ
    Creation date: 1984
    Version: LMDZ5
    License: CeCILL version 2
    Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
    See the license file in the root directory
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 1.1 KB
Line 
1!
2! $Id: adaptdt.f90 5271 2024-10-24 14:25:39Z abarral $
3!
4subroutine adaptdt(nadv,dtbon,n,pbaru, &
5        masse)
6
7  USE comconst_mod, ONLY: dtvr
8  USE dimensions_mod, ONLY: iim, jjm, llm, ndm
9IMPLICIT NONE
10
11
12  include "paramet.h"
13  include "comdissip.h"
14  include "comgeom2.h"
15  include "description.h"
16
17  !----------------------------------------------------------
18  ! Arguments
19  !----------------------------------------------------------
20  INTEGER :: n,nadv
21  REAL :: dtbon
22  REAL :: pbaru(iip1,jjp1,llm)
23  REAL :: masse(iip1,jjp1,llm)
24  !----------------------------------------------------------
25  ! Local
26  !----------------------------------------------------------
27  INTEGER :: i,j,l
28  REAL :: CFLmax,aaa,bbb
29
30    CFLmax=0.
31    do l=1,llm
32     do j=2,jjm
33      do i=1,iim
34         aaa=pbaru(i,j,l)*dtvr/masse(i,j,l)
35         CFLmax=max(CFLmax,aaa)
36         bbb=-pbaru(i,j,l)*dtvr/masse(i+1,j,l)
37         CFLmax=max(CFLmax,bbb)
38      enddo
39     enddo
40    enddo
41    n=int(CFLmax)+1
42  ! pour reproduire cas VL du code qui appele x,y,z,y,x
43     ! if (nadv.eq.30) n=n/2   ! Pour Prather
44    dtbon=dtvr/n
45
46   return
47end subroutine adaptdt
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