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module diverg_gam_m |
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IMPLICIT NONE |
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contains |
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SUBROUTINE diverg_gam(klevel, cuvscvgam, cvuscugam, unsairegam, unsapolnga, & |
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unsapolsga, x, y, div) |
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! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/diverg_gam.F,v 1.1.1.1 2004/05/19 |
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! 12:53:05 lmdzadmin Exp $ |
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! P. Le Van |
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! ********************************************************************* |
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! ... calcule la divergence a tous les niveaux d'1 vecteur de compos. |
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! x et y... |
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! x et y etant des composantes covariantes ... |
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! ********************************************************************* |
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USE dimens_m |
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USE paramet_m |
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USE comgeom |
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! x et y sont des arguments d'entree pour le s-prog |
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! div est un argument de sortie pour le s-prog |
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! --------------------------------------------------------------------- |
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! ATTENTION : pendant ce s-pg , ne pas toucher au COMMON/scratch/ . |
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! --------------------------------------------------------------------- |
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! .......... variables en arguments ................... |
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INTEGER, INTENT (IN) :: klevel |
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REAL x(ip1jmp1, klevel), y(ip1jm, klevel), div(ip1jmp1, klevel) |
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REAL cuvscvgam(ip1jm), cvuscugam(ip1jmp1), unsairegam(ip1jmp1) |
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REAL unsapolnga, unsapolsga |
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! ............... variables locales ......................... |
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REAL aiy1(iip1), aiy2(iip1) |
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REAL sumypn, sumyps |
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INTEGER l, ij |
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! ................................................................... |
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REAL ssum |
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DO l = 1, klevel |
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DO ij = iip2, ip1jm - 1 |
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div(ij+1, l) = (cvuscugam(ij+1)*x(ij+1,l)-cvuscugam(ij)*x(ij,l)+ & |
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cuvscvgam(ij-iim)*y(ij-iim,l)-cuvscvgam(ij+1)*y(ij+1,l))* & |
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unsairegam(ij+1) |
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END DO |
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! .... correction pour div( 1,j,l) ...... |
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! .... div(1,j,l)= div(iip1,j,l) .... |
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! DIR$ IVDEP |
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DO ij = iip2, ip1jm, iip1 |
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div(ij, l) = div(ij+iim, l) |
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END DO |
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! .... calcul aux poles ..... |
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DO ij = 1, iim |
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aiy1(ij) = cuvscvgam(ij)*y(ij, l) |
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aiy2(ij) = cuvscvgam(ij+ip1jmi1)*y(ij+ip1jmi1, l) |
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END DO |
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sumypn = ssum(iim, aiy1, 1)*unsapolnga |
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sumyps = ssum(iim, aiy2, 1)*unsapolsga |
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DO ij = 1, iip1 |
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div(ij, l) = -sumypn |
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div(ij+ip1jm, l) = sumyps |
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END DO |
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END DO |
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END SUBROUTINE diverg_gam |
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end module diverg_gam_m |
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