1 |
jmc |
1.3 |
C $Header: /u/gcmpack/MITgcm/verification/solid-body.cs-32x32x1/code/ini_vel.F,v 1.2 2003/02/11 04:02:24 jmc Exp $ |
2 |
adcroft |
1.1 |
C $Name: $ |
3 |
|
|
|
4 |
|
|
#include "CPP_OPTIONS.h" |
5 |
|
|
|
6 |
jmc |
1.2 |
CBOP |
7 |
|
|
C !ROUTINE: INI_VEL |
8 |
|
|
C !INTERFACE: |
9 |
adcroft |
1.1 |
SUBROUTINE INI_VEL( myThid ) |
10 |
|
|
|
11 |
jmc |
1.2 |
C !DESCRIPTION: \bv |
12 |
|
|
C *================================================================= |
13 |
|
|
C | SUBROUTINE INI_VEL |
14 |
|
|
C | o Initialize flow field (either to zero or from input files) |
15 |
|
|
C *================================================================= |
16 |
|
|
C \ev |
17 |
adcroft |
1.1 |
|
18 |
jmc |
1.2 |
C !USES: |
19 |
|
|
IMPLICIT NONE |
20 |
adcroft |
1.1 |
C === Global variables === |
21 |
|
|
#include "SIZE.h" |
22 |
|
|
#include "EEPARAMS.h" |
23 |
|
|
#include "PARAMS.h" |
24 |
|
|
#include "GRID.h" |
25 |
|
|
#include "DYNVARS.h" |
26 |
|
|
|
27 |
jmc |
1.2 |
C !INPUT/OUTPUT PARAMETERS: |
28 |
adcroft |
1.1 |
C == Routine arguments == |
29 |
jmc |
1.2 |
C myThid - Number of this instance of INI_VEL |
30 |
adcroft |
1.1 |
INTEGER myThid |
31 |
|
|
|
32 |
|
|
C == Local variables == |
33 |
|
|
C bi,bj,i,j,k - Loop counters |
34 |
|
|
INTEGER bi,bj,i,j,k |
35 |
jmc |
1.2 |
INTEGER ip1,jp1 |
36 |
adcroft |
1.1 |
_RL psi,omegaprime,fac |
37 |
|
|
|
38 |
|
|
psi(i,j,bi,bj)=fac*fCoriG(i,j,bi,bj) |
39 |
|
|
|
40 |
|
|
C-- Initialise velocity fields to zero |
41 |
|
|
C |
42 |
|
|
C If you want to specify an analytic initial state for the flow |
43 |
|
|
C field then customize the following section of code. |
44 |
|
|
C It is, however, often easier to generate initial conditions |
45 |
|
|
C off-line and read them from input files... |
46 |
|
|
C |
47 |
|
|
omegaprime=38.60328935834681d0/rSphere |
48 |
|
|
fac=-(rSphere**2)*omegaprime/(2.d0*Omega) |
49 |
|
|
DO bj = myByLo(myThid), myByHi(myThid) |
50 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
51 |
|
|
DO k=1,Nr |
52 |
|
|
DO j=1-Oly,sNy+Oly |
53 |
jmc |
1.2 |
jp1=MIN(j+1,sNy+Oly) |
54 |
adcroft |
1.1 |
DO i=1-Olx,sNx+Olx |
55 |
jmc |
1.2 |
ip1=MIN(i+1,sNx+Olx) |
56 |
adcroft |
1.1 |
uVel(i,j,k,bi,bj)=0. |
57 |
jmc |
1.2 |
& +(psi(i,j,bi,bj)-psi(i,jp1,bi,bj))*recip_dyg(i,j,bi,bj) |
58 |
adcroft |
1.1 |
vVel(i,j,k,bi,bj)=0. |
59 |
jmc |
1.2 |
& +(psi(ip1,j,bi,bj)-psi(i,j,bi,bj))*recip_dxg(i,j,bi,bj) |
60 |
adcroft |
1.1 |
wVel(i,j,k,bi,bj)=0. |
61 |
|
|
ENDDO |
62 |
|
|
ENDDO |
63 |
|
|
ENDDO |
64 |
|
|
ENDDO |
65 |
|
|
ENDDO |
66 |
|
|
|
67 |
|
|
C Read an initial state for each component if required |
68 |
|
|
IF (uVelInitFile .NE. ' ') THEN |
69 |
|
|
_BEGIN_MASTER( myThid ) |
70 |
|
|
CALL READ_FLD_XYZ_RL( uVelInitFile, ' ', uVel, 0, myThid ) |
71 |
|
|
_END_MASTER(myThid) |
72 |
jmc |
1.3 |
c _EXCH_XYZ_RL(uVel , myThid ) |
73 |
adcroft |
1.1 |
ENDIF |
74 |
|
|
|
75 |
|
|
IF (vVelInitFile .NE. ' ') THEN |
76 |
|
|
_BEGIN_MASTER( myThid ) |
77 |
|
|
CALL READ_FLD_XYZ_RL( vVelInitFile, ' ', vVel, 0, myThid ) |
78 |
|
|
_END_MASTER(myThid) |
79 |
jmc |
1.3 |
c _EXCH_XYZ_RL(vVel , myThid ) |
80 |
adcroft |
1.1 |
ENDIF |
81 |
|
|
|
82 |
jmc |
1.2 |
c IF (uVelInitFile .NE. ' ' .OR. vVelInitFile .NE. ' ') THEN |
83 |
|
|
CALL EXCH_UV_XYZ_RL(uVel,vVel,.TRUE.,myThid) |
84 |
|
|
c ENDIF |
85 |
|
|
|
86 |
adcroft |
1.1 |
DO bj = myByLo(myThid), myByHi(myThid) |
87 |
|
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
88 |
|
|
DO k=1,Nr |
89 |
|
|
DO j=1-Oly,sNy+Oly |
90 |
|
|
DO i=1-Olx,sNx+Olx |
91 |
|
|
uVel(i,j,k,bi,bj)=uVel(i,j,k,bi,bj)*_maskW(i,j,k,bi,bj) |
92 |
|
|
vVel(i,j,k,bi,bj)=vVel(i,j,k,bi,bj)*_maskS(i,j,k,bi,bj) |
93 |
|
|
ENDDO |
94 |
|
|
ENDDO |
95 |
|
|
ENDDO |
96 |
|
|
ENDDO |
97 |
|
|
ENDDO |
98 |
|
|
|
99 |
|
|
RETURN |
100 |
|
|
END |