source: LMDZ4/branches/LMDZ4_par_0/libf/dyn3d/adaptdt.F

Last change on this file was 524, checked in by lmdzadmin, 21 years ago

Initial revision
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File size: 1.3 KB
Line 
1!
2! $Header$
3!
4      subroutine adaptdt(nadv,dtbon,n,pbaru,
5     c                   masse)
6
7      IMPLICIT NONE
8
9#include "dimensions.h"
10c#include "paramr2.h"
11#include "paramet.h"
12#include "comconst.h"
13#include "comdissip.h"
14#include "comvert.h"
15#include "comgeom2.h"
16#include "logic.h"
17#include "temps.h"
18#include "control.h"
19#include "ener.h"
20#include "description.h"
21
22c----------------------------------------------------------
23c     Arguments
24c----------------------------------------------------------
25      INTEGER n,nadv
26      REAL dtbon
27      REAL pbaru(iip1,jjp1,llm)
28      REAL masse(iip1,jjp1,llm)
29c----------------------------------------------------------   
30c     Local
31c----------------------------------------------------------
32      INTEGER i,j,l
33      REAL CFLmax,aaa,bbb
34     
35        CFLmax=0.
36        do l=1,llm
37         do j=2,jjm
38          do i=1,iim
39             aaa=pbaru(i,j,l)*dtvr/masse(i,j,l)
40             CFLmax=max(CFLmax,aaa)
41             bbb=-pbaru(i,j,l)*dtvr/masse(i+1,j,l)
42             CFLmax=max(CFLmax,bbb)
43          enddo
44         enddo
45        enddo             
46        n=int(CFLmax)+1
47c pour reproduire cas VL du code qui appele x,y,z,y,x
48c        if (nadv.eq.30) n=n/2   ! Pour Prather
49        dtbon=dtvr/n
50       
51       return
52       end
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