| 1 |
C $Header: /u/gcmpack/models/MITgcmUV/verification/exp4/set_obcs.F,v 1.2 1998/12/09 16:11:54 adcroft Exp $ |
| 2 |
|
| 3 |
#include "CPP_OPTIONS.h" |
| 4 |
|
| 5 |
CStartOfInterface |
| 6 |
SUBROUTINE SET_OBCS( myCurrentTime, myThid ) |
| 7 |
C /==========================================================\ |
| 8 |
C | SUBROUTINE SET_OBCS | |
| 9 |
C | o Set boundary conditions at open boundaries | |
| 10 |
C |==========================================================| |
| 11 |
C | | |
| 12 |
C \==========================================================/ |
| 13 |
IMPLICIT NONE |
| 14 |
|
| 15 |
C === Global variables === |
| 16 |
#include "SIZE.h" |
| 17 |
#include "EEPARAMS.h" |
| 18 |
#include "PARAMS.h" |
| 19 |
#include "DYNVARS.h" |
| 20 |
#include "OBCS.h" |
| 21 |
|
| 22 |
C == Routine arguments == |
| 23 |
C myThid - Number of this instance of INI_DEPTHS |
| 24 |
_RL myCurrentTime |
| 25 |
INTEGER myThid |
| 26 |
CEndOfInterface |
| 27 |
|
| 28 |
C == Local variables == |
| 29 |
C xG, yG - Global coordinate location. |
| 30 |
C zG |
| 31 |
C zUpper - Work arrays for upper and lower |
| 32 |
C zLower cell-face heights. |
| 33 |
C phi - Temporary scalar |
| 34 |
C iG, jG - Global coordinate index |
| 35 |
C bi,bj - Loop counters |
| 36 |
C zUpper - Temporary arrays holding z coordinates of |
| 37 |
C zLower upper and lower faces. |
| 38 |
C I,i,K |
| 39 |
INTEGER iG, jG |
| 40 |
INTEGER bi, bj |
| 41 |
INTEGER I, J, K |
| 42 |
_RL obTimeScale,Uinflow |
| 43 |
c |
| 44 |
obTimeScale = 2000.0 |
| 45 |
Uinflow = 0.25 |
| 46 |
|
| 47 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 48 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 49 |
DO K=1,Nr |
| 50 |
DO J=1-Oly,sNy+Oly |
| 51 |
OBEu(J,K,bi,bj)=Uinflow |
| 52 |
c & *sin(2.*PI*myCurrentTime/obTimeScale) |
| 53 |
c & *max(myCurrentTime/obTimeScale,1.) |
| 54 |
OBEv(J,K,bi,bj)=0. |
| 55 |
OBEt(J,K,bi,bj)=tRef(K) |
| 56 |
OBWu(J,K,bi,bj)=Uinflow |
| 57 |
c & *sin(2.*PI*myCurrentTime/obTimeScale) |
| 58 |
c & *max(myCurrentTime/obTimeScale,1.) |
| 59 |
OBWv(J,K,bi,bj)=0. |
| 60 |
OBWt(J,K,bi,bj)=tRef(K) |
| 61 |
ENDDO |
| 62 |
DO I=1-Olx,sNx+Olx |
| 63 |
OBNu(I,K,bi,bj)=Uinflow |
| 64 |
OBNv(I,K,bi,bj)=0. |
| 65 |
OBNt(I,K,bi,bj)=tRef(K) |
| 66 |
OBSu(I,K,bi,bj)=Uinflow |
| 67 |
OBSv(I,K,bi,bj)=0. |
| 68 |
OBSt(I,K,bi,bj)=tRef(K) |
| 69 |
ENDDO |
| 70 |
ENDDO |
| 71 |
ENDDO |
| 72 |
ENDDO |
| 73 |
|
| 74 |
#ifdef SIMPLE_OBCS |
| 75 |
C This is an example of some rudimentary OBCs. |
| 76 |
C These work but aren't very sophisticated... |
| 77 |
C (The above specified OBCs produce nicer results!) |
| 78 |
C [Remove the CPP #ifdef and #endif to use this code] |
| 79 |
|
| 80 |
C Simple upwind-type radiation OBCs |
| 81 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 82 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 83 |
|
| 84 |
DO K=1,Nr |
| 85 |
DO J=1-Oly,sNy+Oly |
| 86 |
C Eastern boundary |
| 87 |
IF (uVel( OB_Ie(J,bi,bj) ,J,K,bi,bj).LE.0.) THEN |
| 88 |
C Incoming flow or forced in-flow |
| 89 |
OBEu(J,K,bi,bj)=Uinflow |
| 90 |
OBEt(J,K,bi,bj)=tRef(K) |
| 91 |
ELSE |
| 92 |
C Outgoing flow |
| 93 |
OBEu(J,K,bi,bj)=uVel( OB_Ie(J,bi,bj)-1 ,J,K,bi,bj) |
| 94 |
OBEt(J,K,bi,bj)=theta( OB_Ie(J,bi,bj)-1 ,J,K,bi,bj) |
| 95 |
ENDIF |
| 96 |
OBEv(J,K,bi,bj)=0. |
| 97 |
C Western boundary |
| 98 |
IF (uVel( OB_Iw(J,bi,bj)+1 ,J,K,bi,bj).GE.0.) THEN |
| 99 |
C Incoming flow or forced in-flow |
| 100 |
OBWu(J,K,bi,bj)=Uinflow |
| 101 |
OBWt(J,K,bi,bj)=tRef(K) |
| 102 |
ELSE |
| 103 |
C Outgoing flow |
| 104 |
OBEu(J,K,bi,bj)=uVel( OB_Iw(J,bi,bj)+1 ,J,K,bi,bj) |
| 105 |
OBEt(J,K,bi,bj)=theta( OB_Iw(J,bi,bj)+1 ,J,K,bi,bj) |
| 106 |
ENDIF |
| 107 |
OBWv(J,K,bi,bj)=0. |
| 108 |
ENDDO |
| 109 |
ENDDO |
| 110 |
|
| 111 |
DO K=1,Nr |
| 112 |
DO I=1-Olx,sNx+Olx |
| 113 |
C Northern boundary |
| 114 |
IF (vVel(I, OB_Jn(I,bi,bj) ,K,bi,bj).LE.0.) THEN |
| 115 |
C Incoming flow or forced in-flow |
| 116 |
OBNv(I,K,bi,bj)=0. |
| 117 |
OBNt(I,K,bi,bj)=tRef(K) |
| 118 |
ELSE |
| 119 |
C Outgoing |
| 120 |
OBNv(I,K,bi,bj)=vVel(I, OB_Jn(I,bi,bj)-1 ,K,bi,bj) |
| 121 |
OBNt(I,K,bi,bj)=theta(I, OB_Jn(I,bi,bj)-1 ,K,bi,bj) |
| 122 |
ENDIF |
| 123 |
OBNu(I,K,bi,bj)=Uinflow |
| 124 |
C Southern boundary |
| 125 |
IF (vVel(I, OB_Js(I,bi,bj)+1 ,K,bi,bj).GE.0.) THEN |
| 126 |
C Incoming flow or forced in-flow |
| 127 |
OBSv(I,K,bi,bj)=0. |
| 128 |
OBSt(I,K,bi,bj)=tRef(K) |
| 129 |
ELSE |
| 130 |
C Outgoing |
| 131 |
OBSv(I,K,bi,bj)=vVel(I, OB_Js(I,bi,bj)+1 ,K,bi,bj) |
| 132 |
OBSt(I,K,bi,bj)=theta(I, OB_Js(I,bi,bj)+1 ,K,bi,bj) |
| 133 |
ENDIF |
| 134 |
OBSu(I,K,bi,bj)=Uinflow |
| 135 |
ENDDO |
| 136 |
ENDDO |
| 137 |
|
| 138 |
ENDDO |
| 139 |
ENDDO |
| 140 |
#endif |
| 141 |
|
| 142 |
|
| 143 |
C |
| 144 |
RETURN |
| 145 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph