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module divgrad2_m |
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IMPLICIT NONE |
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contains |
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SUBROUTINE divgrad2(klevel, h, deltapres, lh, divgra, cdivh) |
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! From LMDZ4/libf/dyn3d/divgrad2.F, version 1.1.1.1, 2004/05/19 12:53:06 |
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! P. Le Van |
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! Calcul de div(grad) de (pext * h) |
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USE comgeom, ONLY: cuvscvgam2, cvuscugam2, unsair_gam2, unsapolnga2, & |
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unsapolsga2 |
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use dimensions, only: iim, jjm |
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use laplacien_gam_m, only: laplacien_gam |
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USE laplacien_m, ONLY: laplacien |
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INTEGER, intent(in):: klevel |
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REAL, intent(in), dimension(iim + 1, jjm + 1, klevel):: h, deltapres |
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integer, intent(in):: lh |
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REAL, intent(out):: divgra(iim + 1, jjm + 1, klevel) |
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real, intent(in):: cdivh |
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! Variables locales |
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REAL sqrtps(iim + 1, jjm + 1, klevel) |
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INTEGER iter |
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!----------------------------------------------------------------- |
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divgra = h |
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CALL laplacien(klevel, divgra) |
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sqrtps = SQRT(deltapres) |
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divgra = divgra * sqrtps |
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! Itération de l'opérateur laplacien_gam |
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DO iter = 1, lh - 2 |
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CALL laplacien_gam(klevel, cuvscvgam2, cvuscugam2, unsair_gam2, & |
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unsapolnga2, unsapolsga2, divgra, divgra) |
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ENDDO |
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divgra = divgra * sqrtps |
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CALL laplacien(klevel, divgra) |
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divgra = (-1.)**lh * cdivh * divgra / deltapres |
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END SUBROUTINE divgrad2 |
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end module divgrad2_m |