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! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/massdair.F,v 1.1.1.1 2004/05/19 12:53:07 lmdzadmin Exp $ |
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SUBROUTINE massdair( p, masse ) |
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c |
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c ********************************************************************* |
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c .... Calcule la masse d'air dans chaque maille .... |
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c ********************************************************************* |
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c |
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c Auteurs : P. Le Van , Fr. Hourdin . |
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c .......... |
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c |
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c .. p est un argum. d'entree pour le s-pg ... |
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c .. masse est un argum.de sortie pour le s-pg ... |
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c |
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c .... p est defini aux interfaces des llm couches ..... |
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c |
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use dimens_m |
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use paramet_m |
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use comconst |
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use comgeom, only: airesurg |
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IMPLICIT NONE |
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c |
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c |
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c ..... arguments .... |
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c |
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REAL,intent(in):: p(ip1jmp1,llmp1) |
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real masse(ip1jmp1,llm) |
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c .... Variables locales ..... |
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INTEGER l,ij |
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REAL massemoyn, massemoys |
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REAL SSUM |
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c |
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c |
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c Methode pour calculer massebx et masseby . |
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c ---------------------------------------- |
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c |
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c A chaque point scalaire P (i,j) est affecte 4 coefficients d'aires |
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c alpha1(i,j) calcule au point ( i+1/4,j-1/4 ) |
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c alpha2(i,j) calcule au point ( i+1/4,j+1/4 ) |
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c alpha3(i,j) calcule au point ( i-1/4,j+1/4 ) |
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c alpha4(i,j) calcule au point ( i-1/4,j-1/4 ) |
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c |
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c Avec alpha1(i,j) = aire(i+1/4,j-1/4)/ aire(i,j) |
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c |
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c N.B . Pour plus de details, voir s-pg ... iniconst ... |
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c |
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c |
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c |
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c alpha4 . . alpha1 . alpha4 |
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c (i,j) (i,j) (i+1,j) |
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c |
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c P . U . . P |
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c (i,j) (i,j) (i+1,j) |
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c |
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c alpha3 . . alpha2 .alpha3 |
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c (i,j) (i,j) (i+1,j) |
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c |
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c V . Z . . V |
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c (i,j) |
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c |
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c alpha4 . . alpha1 .alpha4 |
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c (i,j+1) (i,j+1) (i+1,j+1) |
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c |
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c P . U . . P |
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c (i,j+1) (i+1,j+1) |
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c |
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c |
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c |
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c On a : |
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c |
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c massebx(i,j) = masse(i ,j) * ( alpha1(i ,j) + alpha2(i,j)) + |
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c masse(i+1,j) * ( alpha3(i+1,j) + alpha4(i+1,j) ) |
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c localise au point ... U (i,j) ... |
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c |
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c masseby(i,j) = masse(i,j ) * ( alpha2(i,j ) + alpha3(i,j ) + |
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c masse(i,j+1) * ( alpha1(i,j+1) + alpha4(i,j+1) |
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c localise au point ... V (i,j) ... |
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c |
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c |
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c======================================================================= |
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CC print *, "Call sequence information: massdair" |
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DO 100 l = 1 , llm |
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c |
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DO ij = 1, ip1jmp1 |
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masse(ij,l) = airesurg(ij) * ( p(ij,l) - p(ij,l+1) ) |
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ENDDO |
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c |
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DO ij = 1, ip1jmp1,iip1 |
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masse(ij+ iim,l) = masse(ij,l) |
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ENDDO |
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100 CONTINUE |
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c |
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RETURN |
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END |
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