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! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/enercin.F,v 1.1.1.1 2004/05/19 12:53:06 lmdzadmin Exp $ |
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SUBROUTINE enercin ( vcov, ucov, vcont, ucont, ecin ) |
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use dimens_m |
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use paramet_m |
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use comgeom |
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IMPLICIT NONE |
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c======================================================================= |
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c |
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c Auteur: P. Le Van |
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c ------- |
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c |
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c Objet: |
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c ------ |
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c |
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c ********************************************************************* |
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c .. calcul de l'energie cinetique aux niveaux s ...... |
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c ********************************************************************* |
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c vcov, vcont, ucov et ucont sont des arguments d'entree pour le s-pg . |
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c ecin est un argument de sortie pour le s-pg |
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c |
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c======================================================================= |
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REAL, intent(in):: vcov( ip1jm,llm ), ucov( ip1jmp1,llm ) |
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real vcont( ip1jm,llm ) ,ucont( ip1jmp1,llm ),ecin( ip1jmp1,llm ) |
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REAL ecinni( iip1 ),ecinsi( iip1 ) |
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REAL ecinpn, ecinps |
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INTEGER l,ij,i |
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REAL SSUM |
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c . V |
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c i,j-1 |
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c alpha4 . . alpha1 |
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c U . . P . U |
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c i-1,j i,j i,j |
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c alpha3 . . alpha2 |
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c . V |
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c i,j |
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c |
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c L'energie cinetique au point scalaire P(i,j) ,autre que les poles, est : |
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c Ecin = 0.5 * U(i-1,j)**2 *( alpha3 + alpha4 ) + |
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c 0.5 * U(i ,j)**2 *( alpha1 + alpha2 ) + |
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c 0.5 * V(i,j-1)**2 *( alpha1 + alpha4 ) + |
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c 0.5 * V(i, j)**2 *( alpha2 + alpha3 ) |
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DO 5 l = 1,llm |
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DO 1 ij = iip2, ip1jm -1 |
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ecin( ij+1, l ) = 0.5 * |
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* ( ucov( ij ,l ) * ucont( ij ,l ) * alpha3p4( ij +1 ) + |
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* ucov( ij+1 ,l ) * ucont( ij+1 ,l ) * alpha1p2( ij +1 ) + |
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* vcov(ij-iim,l ) * vcont(ij-iim,l ) * alpha1p4( ij +1 ) + |
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* vcov( ij+ 1,l ) * vcont( ij+ 1,l ) * alpha2p3( ij +1 ) ) |
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1 CONTINUE |
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c ... correction pour ecin(1,j,l) .... |
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c ... ecin(1,j,l)= ecin(iip1,j,l) ... |
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CDIR$ IVDEP |
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DO 2 ij = iip2, ip1jm, iip1 |
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ecin( ij,l ) = ecin( ij + iim, l ) |
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2 CONTINUE |
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c calcul aux poles ....... |
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DO 3 i = 1, iim |
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ecinni(i) = vcov( i , l) * vcont( i ,l) * aire( i ) |
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ecinsi(i) = vcov(i+ip1jmi1,l) * vcont(i+ip1jmi1,l) * aire(i+ip1jm) |
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3 CONTINUE |
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ecinpn = 0.5 * SSUM( iim,ecinni,1 ) / apoln |
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ecinps = 0.5 * SSUM( iim,ecinsi,1 ) / apols |
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DO 4 ij = 1,iip1 |
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ecin( ij , l ) = ecinpn |
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ecin( ij+ ip1jm, l ) = ecinps |
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4 CONTINUE |
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5 CONTINUE |
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RETURN |
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END |