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jahn |
1.6 |
C $Header: /u/gcmpack/MITgcm/verification/internal_wave/code/obcs_calc.F,v 1.5 2002/08/07 16:55:52 mlosch Exp $ |
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adcroft |
1.3 |
C $Name: $ |
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adcroft |
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#include "OBCS_OPTIONS.h" |
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jahn |
1.6 |
SUBROUTINE OBCS_CALC( futureTime, futureIter, |
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adcroft |
1.2 |
& uVel, vVel, wVel, theta, salt, |
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& myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE OBCS_CALC | |
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C | o Calculate future boundary data at open boundaries | |
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C | at time = futureTime | |
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C |==========================================================| |
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C | | |
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C \==========================================================/ |
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IMPLICIT NONE |
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C === Global variables === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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mlosch |
1.5 |
#include "EOS.h" |
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adcroft |
1.2 |
#include "OBCS.h" |
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C == Routine arguments == |
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jmc |
1.4 |
INTEGER futureIter |
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adcroft |
1.2 |
_RL futureTime |
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_RL uVel (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RL vVel (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RL wVel (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RL theta(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RL salt (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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INTEGER myThid |
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#ifdef ALLOW_OBCS |
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C == Local variables == |
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jahn |
1.6 |
INTEGER bi, bj |
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adcroft |
1.2 |
INTEGER I, J ,K |
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#include "GRID.h" |
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_RL obTimeScale,Uinflow,rampTime2 |
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_RL vertStructWst(Nr) |
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_RL mz,strat,kx |
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_RL tmpsum |
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C Vertical mode number |
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adcroft |
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mz=1.0 _d 0 |
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adcroft |
1.2 |
C Stratification |
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strat = 1.0 _d -6 / (gravity*tAlpha) |
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C Create a vertical structure function with zero mean |
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tmpsum=0. |
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do K=1,Nr |
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vertStructWst(K)=cos(mz*PI* (rC(K)/rF(Nr+1)) ) |
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tmpsum=tmpsum+vertStructWst(K)*drF(K) |
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enddo |
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tmpsum=tmpsum/rF(Nr+1) |
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do K=1,Nr |
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vertStructWst(K)=vertStructWst(K)-tmpsum |
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enddo |
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c |
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adcroft |
1.3 |
obTimeScale = 44567.0 _d 0 |
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kx=mz*2. _d 0*pi/400.0 _d 0 |
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& *sqrt((2.0 _d 0*pi*2.0 _d 0*pi/(obTimeScale*obTimeScale) |
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adcroft |
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& - f0*f0)/(1.0 _d -6 |
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adcroft |
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& - 2.0 _d 0*pi*2.0 _d 0*pi/(obTimeScale*obTimeScale))) |
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Uinflow = 0.024 _d 0 |
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C *NOTE* I have commented out the ramp function below |
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C just to speed things up. You will probably want to use it |
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C for smoother looking solutions. |
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rampTime2 = 4. _d 0*44567.0 _d 0 |
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adcroft |
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jahn |
1.6 |
DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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C Eastern OB |
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IF (useOrlanskiEast) THEN |
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CALL ORLANSKI_EAST( |
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& bi, bj, futureTime, |
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& uVel, vVel, wVel, theta, salt, |
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& myThid ) |
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ELSE |
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DO K=1,Nr |
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DO J=1-Oly,sNy+Oly |
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OBEu(J,K,bi,bj)=0. |
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OBEv(J,K,bi,bj)=0. |
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OBEt(J,K,bi,bj)=tRef(K) |
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OBEs(J,K,bi,bj)=sRef(K) |
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#ifdef ALLOW_NONHYDROSTATIC |
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OBEw(J,K,bi,bj)=0. |
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#endif |
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ENDDO |
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ENDDO |
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ENDIF |
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C Western OB |
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IF (useOrlanskiWest) THEN |
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CALL ORLANSKI_WEST( |
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& bi, bj, futureTime, |
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& uVel, vVel, wVel, theta, salt, |
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& myThid ) |
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ELSE |
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DO K=1,Nr |
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DO J=1-Oly,sNy+Oly |
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adcroft |
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OBWu(J,K,bi,bj)=0. _d 0 |
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adcroft |
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& +Uinflow |
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& *vertStructWst(K) |
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adcroft |
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& *sin(2. _d 0*PI*futureTime/obTimeScale) |
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c & *(exp(futureTime/rampTime2) |
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c & - exp(-futureTime/rampTime2)) |
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c & /(exp(futureTime/rampTime2) |
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c & + exp(-futureTime/rampTime2)) |
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& *cos(kx*(3. _d 0-2. _d 0-0.5 _d 0)*delX(1)) |
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OBWv(J,K,bi,bj)=0. _d 0 |
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adcroft |
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& +Uinflow |
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adcroft |
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& *f0/(2.0 _d 0*PI/obTimeScale) |
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adcroft |
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& *vertStructWst(K) |
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adcroft |
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& *cos(2. _d 0*PI*futureTime/obTimeScale ) |
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adcroft |
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& * (exp(futureTime/rampTime2) |
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& - exp(-futureTime/rampTime2)) |
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& /(exp(futureTime/rampTime2) |
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& + exp(-futureTime/rampTime2)) |
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OBWt(J,K,bi,bj)=tRef(K) |
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& + Uinflow*sin(mz*PI*(float(k)-0.5 _d 0)/float(Nr)) |
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& * sin(2.0 _d 0*PI*futureTime/obTimeScale) |
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& *sqrt(strat/(tAlpha*gravity)) |
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adcroft |
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& *sqrt(2.0 _d 0*PI/obTimeScale*2.0*PI/obTimeScale - f0*f0) |
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& /(2.0 _d 0*PI/obTimeScale) |
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c & * (exp(futureTime/rampTime2) |
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c & - exp(-futureTime/rampTime2)) |
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c & /(exp(futureTime/rampTime2) |
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c & + exp(-futureTime/rampTime2)) |
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adcroft |
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#ifdef ALLOW_NONHYDROSTATIC |
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OBWw(J,K,bi,bj)=-Uinflow |
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adcroft |
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& *sqrt(2.0 _d 0*PI/obTimeScale*2.0 _d 0*PI/obTimeScale - f0*f0) |
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& /sqrt(strat*strat - |
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& 2.0 _d 0*PI/obTimeScale*2.0 _d 0*PI/obTimeScale) |
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& *sin(mz*PI*(float(k)-0.5 _d 0)/float(Nr)) |
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& *cos(2. _d 0*PI*futureTime/obTimeScale) |
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c & *(exp(futureTime/rampTime2) |
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c & - exp(-futureTime/rampTime2)) |
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c & /(exp(futureTime/rampTime2) |
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c & + exp(-futureTime/rampTime2)) |
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adcroft |
1.2 |
#endif |
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ENDDO |
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ENDDO |
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ENDIF |
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C Northern OB, template for forcing |
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IF (useOrlanskiNorth) THEN |
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CALL ORLANSKI_NORTH( |
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& bi, bj, futureTime, |
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& uVel, vVel, wVel, theta, salt, |
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& myThid ) |
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ELSE |
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DO K=1,Nr |
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DO I=1-Olx,sNx+Olx |
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OBNv(I,K,bi,bj)=0. |
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OBNu(I,K,bi,bj)=0. |
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OBNt(I,K,bi,bj)=tRef(K) |
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OBNs(I,K,bi,bj)=sRef(K) |
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#ifdef ALLOW_NONHYDROSTATIC |
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OBNw(I,K,bi,bj)=0. |
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#endif |
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ENDDO |
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ENDDO |
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ENDIF |
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C Southern OB, template for forcing |
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IF (useOrlanskiSouth) THEN |
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CALL ORLANSKI_SOUTH( |
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& bi, bj, futureTime, |
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& uVel, vVel, wVel, theta, salt, |
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& myThid ) |
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ELSE |
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DO K=1,Nr |
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DO I=1-Olx,sNx+Olx |
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OBSu(I,K,bi,bj)=0. |
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OBSv(I,K,bi,bj)=0. |
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OBSt(I,K,bi,bj)=tRef(K) |
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OBSs(I,K,bi,bj)=sRef(K) |
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#ifdef ALLOW_NONHYDROSTATIC |
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OBSw(I,K,bi,bj)=0. |
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#endif |
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ENDDO |
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ENDDO |
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ENDIF |
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jahn |
1.6 |
C-- end bi,bj loops. |
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ENDDO |
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ENDDO |
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adcroft |
1.2 |
#endif /* ALLOW_OBCS */ |
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RETURN |
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END |
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