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mom_u_yviscflux.F
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mom_u_yviscflux.F
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#include "MOM_FLUXFORM_OPTIONS.h"
CBOP
C !ROUTINE: MOM_U_YVISCFLUX
C !INTERFACE: ==========================================================
SUBROUTINE MOM_U_YVISCFLUX(
I bi,bj,k,
I uFld, del2u, hFacZ,
O yViscFluxU,
I viscAh_Z,viscA4_Z,
I myThid )
C !DESCRIPTION:
C Calculates the area integrated meridional viscous fluxes of U:
C \begin{equation*}
C F^y = - \frac{ \Delta y_v \Delta r_f h_z }{\Delta y_u}
C ( A_h \delta_j u - A_4 \delta_j \nabla^2 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 del2u :: Laplacian of zonal flow
C myThid :: thread number
INTEGER bi,bj,k
_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
_RL del2u(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
_RL viscAh_Z(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
_RL viscA4_Z(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
INTEGER myThid
C !OUTPUT PARAMETERS: ==================================================
C yViscFluxU :: viscous fluxes
_RL yViscFluxU(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
C !LOCAL VARIABLES: ====================================================
C i,j :: loop indices
INTEGER I,J
CEOP
C - Laplacian and bi-harmonic terms
DO j=1-Oly+1,sNy+Oly
DO i=1-Olx,sNx+Olx
yViscFluxU(i,j) =
& _dxV(i,j,bi,bj)*drF(k)*hFacZ(i,j)
& *(
& -viscAh_Z(i,j)*( uFld(i,j)-uFld(i,j-1) )
#ifdef ISOTROPIC_COS_SCALING
& *cosFacV(J,bi,bj)
#endif
& +viscA4_Z(i,j)*(del2u(i,j)-del2u(i,j-1))
#ifdef ISOTROPIC_COS_SCALING
#ifdef COSINEMETH_III
& *sqCosFacV(J,bi,bj)
#else
& *cosFacV(J,bi,bj)
#endif
#endif
& )*_recip_dyU(i,j,bi,bj)
c & *deepFacC(k) ! dxV scaling factor
c & *recip_deepFacC(k) ! recip_dyU scaling factor
ENDDO
ENDDO
RETURN
END