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adcroft |
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C $Header: /u/gcmpack/models/MITgcmUV/pkg/mom_vecinv/Attic/mom_u_sidedrag.F,v 1.1.2.1 2001/03/30 21:13:33 adcroft Exp $ |
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C $Name: pre38-close $ |
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#include "CPP_OPTIONS.h" |
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SUBROUTINE MOM_U_SIDEDRAG( |
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I bi,bj,k, |
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I uFld, del2u, hFacZ, |
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O uDragTerms, |
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I myThid) |
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IMPLICIT NONE |
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C |
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C Calculate side drag terms for U eqn |
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C - is not vector invariant ... |
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C |
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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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#include "GRID.h" |
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C == Routine arguments == |
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INTEGER bi,bj,k |
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_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL del2u(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL uDragTerms(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER myThid |
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C == Local variables == |
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INTEGER I,J |
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_RS hFacZClosedS,hFacZClosedN |
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C - Laplacian and bi-harmonic terms |
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DO j=1-Oly,sNy+Oly-1 |
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DO i=1-Olx,sNx+Olx-1 |
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hFacZClosedS = _hFacW(i,j,k,bi,bj) - hFacZ(i,j) |
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hFacZClosedN = _hFacW(i,j,k,bi,bj) - hFacZ(i,j+1) |
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uDragTerms(i,j) = |
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& -_recip_hFacW(i,j,k,bi,bj) |
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& *recip_drF(k)*recip_rAw(i,j,bi,bj) |
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& *( hFacZClosedS*_dxV(i, j ,bi,bj) |
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& *_recip_dyU(i, j ,bi,bj) |
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& +hFacZClosedN*_dxV(i,j+1,bi,bj) |
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& *_recip_dyU(i,j+1,bi,bj) ) |
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& *drF(k)*2.*( |
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#ifdef ISOTROPIC_COS_SCALING |
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& viscAh*uFld(i,j)*cosFacU(J,bi,bj) |
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#ifdef COSINEMETH_III |
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& -viscA4*del2u(i,j)*sqcosFacU(J,bi,bj) |
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#else |
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& -viscA4*del2u(i,j)*cosFacU(J,bi,bj) |
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#endif |
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#else |
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& viscAh*uFld(i,j) |
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& -viscA4*del2u(i,j) |
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#endif |
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& ) |
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ENDDO |
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ENDDO |
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RETURN |
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END |