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mom_u_rviscflux.F
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mom_u_rviscflux.F
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#include "MOM_COMMON_OPTIONS.h"
CBOP
C !ROUTINE: MOM_U_RVISCFLUX
C !INTERFACE: ==========================================================
SUBROUTINE MOM_U_RVISCFLUX(
I bi,bj,k,
I uFld, KappaRU,
O rViscFluxU,
I myThid)
C !DESCRIPTION:
C Calculates the area integrated vertical viscous fluxes of U
C at vertical interface k (between level k & k-1):
C \begin{equation*}
C F^r = - \frac{ {\cal A}_w }{\Delta r_c} A_r \delta_k u
C \end{equation*}
C !USES: ===============================================================
IMPLICIT NONE
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "GRID.h"
C !INPUT PARAMETERS: ===================================================
C bi,bj :: tile indices
C k :: vertical level
C uFld :: zonal flow
C KappaRU :: vertical viscosity
C myThid :: thread number
INTEGER bi,bj,k
_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
_RL KappaRU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
INTEGER myThid
C !OUTPUT PARAMETERS: ==================================================
C rViscFluxU :: viscous fluxes
_RL rViscFluxU(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
C !LOCAL VARIABLES: ====================================================
C i,j :: loop indices
INTEGER i,j
CEOP
C - Vertical viscous flux
IF ( k.LE.1 .OR. k.GT.Nr ) THEN
DO j=1-Oly,sNy+Oly
DO i=1-Olx,sNx+Olx
rViscFluxU(i,j) = 0. _d 0
ENDDO
ENDDO
ELSE
DO j=1-Oly,sNy+Oly-1
DO i=1-Olx,sNx+Olx-1
rViscFluxU(i,j) =
& -KappaRU(i,j,k)
& *rAw(i,j,bi,bj)*deepFac2F(k)*rhoFacF(k)
& *( uFld(i,j,k,bi,bj)-uFld(i,j,k-1,bi,bj)
& )*rkSign*recip_drC(k)
& *_maskW(i,j,k,bi,bj)
& *_maskW(i,j,k-1,bi,bj)
ENDDO
ENDDO
ENDIF
RETURN
END