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! |
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! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/inidissip.F,v 1.1.1.1 2004/05/19 12:53:06 lmdzadmin Exp $ |
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! |
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SUBROUTINE inidissip ( lstardis,nitergdiv,nitergrot,niterh , |
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* tetagdiv,tetagrot,tetatemp ) |
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c======================================================================= |
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c initialisation de la dissipation horizontale |
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c======================================================================= |
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c----------------------------------------------------------------------- |
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c declarations: |
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c ------------- |
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|
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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 comvert |
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use conf_gcm_m |
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IMPLICIT NONE |
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include "comdissipn.h" |
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|
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LOGICAL lstardis |
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INTEGER nitergdiv,nitergrot,niterh |
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REAL tetagdiv,tetagrot,tetatemp |
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REAL fact,zvert(llm),zz |
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REAL zh(ip1jmp1),zu(ip1jmp1),zv(ip1jm),deltap(ip1jmp1,llm) |
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REAL ullm,vllm,umin,vmin,zhmin,zhmax |
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REAL zllm,z1llm |
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|
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INTEGER l,ij,idum,ii |
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REAL tetamin |
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|
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REAL ran1 |
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|
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|
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c----------------------------------------------------------------------- |
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|
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print *, "Call sequence information: inidissip" |
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c |
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c calcul des valeurs propres des operateurs par methode iterrative: |
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c ----------------------------------------------------------------- |
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|
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crot = -1. |
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cdivu = -1. |
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cdivh = -1. |
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|
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c calcul de la valeur propre de divgrad: |
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c -------------------------------------- |
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idum = 0 |
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DO l = 1, llm |
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DO ij = 1, ip1jmp1 |
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deltap(ij,l) = 1. |
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ENDDO |
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ENDDO |
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|
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idum = -1 |
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zh(1) = RAN1(idum)-.5 |
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idum = 0 |
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DO ij = 2, ip1jmp1 |
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zh(ij) = RAN1(idum) -.5 |
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ENDDO |
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|
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CALL filtreg (zh,jjp1,1,2,1,.TRUE.,1) |
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|
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CALL minmax(iip1*jjp1,zh,zhmin,zhmax ) |
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|
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IF ( zhmin .GE. zhmax ) THEN |
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PRINT*,' Inidissip zh min max ',zhmin,zhmax |
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STOP'probleme generateur alleatoire dans inidissip' |
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ENDIF |
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|
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zllm = ABS( zhmax ) |
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DO l = 1,50 |
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IF(lstardis) THEN |
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CALL divgrad2(1,zh,deltap,niterh,zh) |
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ELSE |
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CALL divgrad (1,zh,niterh,zh) |
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ENDIF |
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|
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CALL minmax(iip1*jjp1,zh,zhmin,zhmax ) |
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|
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zllm = ABS( zhmax ) |
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z1llm = 1./zllm |
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DO ij = 1,ip1jmp1 |
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zh(ij) = zh(ij)* z1llm |
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ENDDO |
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ENDDO |
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|
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IF(lstardis) THEN |
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cdivh = 1./ zllm |
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ELSE |
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cdivh = zllm ** ( -1./niterh ) |
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ENDIF |
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|
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c calcul des valeurs propres de gradiv (ii =1) et nxgrarot(ii=2) |
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c ----------------------------------------------------------------- |
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print*,'calcul des valeurs propres' |
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|
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DO 20 ii = 1, 2 |
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c |
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DO ij = 1, ip1jmp1 |
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zu(ij) = RAN1(idum) -.5 |
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ENDDO |
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CALL filtreg (zu,jjp1,1,2,1,.TRUE.,1) |
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DO ij = 1, ip1jm |
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zv(ij) = RAN1(idum) -.5 |
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ENDDO |
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CALL filtreg (zv,jjm,1,2,1,.FALSE.,1) |
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|
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CALL minmax(iip1*jjp1,zu,umin,ullm ) |
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CALL minmax(iip1*jjm, zv,vmin,vllm ) |
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|
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ullm = ABS ( ullm ) |
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vllm = ABS ( vllm ) |
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|
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DO 5 l = 1, 50 |
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IF(ii.EQ.1) THEN |
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ccccc CALL covcont( 1,zu,zv,zu,zv ) |
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IF(lstardis) THEN |
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CALL gradiv2( 1,zu,zv,nitergdiv,zu,zv ) |
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ELSE |
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CALL gradiv ( 1,zu,zv,nitergdiv,zu,zv ) |
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ENDIF |
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ELSE |
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IF(lstardis) THEN |
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CALL nxgraro2( 1,zu,zv,nitergrot,zu,zv ) |
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ELSE |
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CALL nxgrarot( 1,zu,zv,nitergrot,zu,zv ) |
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ENDIF |
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ENDIF |
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|
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CALL minmax(iip1*jjp1,zu,umin,ullm ) |
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CALL minmax(iip1*jjm, zv,vmin,vllm ) |
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|
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ullm = ABS ( ullm ) |
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vllm = ABS ( vllm ) |
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|
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zllm = MAX( ullm,vllm ) |
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z1llm = 1./ zllm |
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DO ij = 1, ip1jmp1 |
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zu(ij) = zu(ij)* z1llm |
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ENDDO |
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DO ij = 1, ip1jm |
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zv(ij) = zv(ij)* z1llm |
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ENDDO |
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5 CONTINUE |
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|
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IF ( ii.EQ.1 ) THEN |
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IF(lstardis) THEN |
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cdivu = 1./zllm |
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ELSE |
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cdivu = zllm **( -1./nitergdiv ) |
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ENDIF |
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ELSE |
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IF(lstardis) THEN |
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crot = 1./ zllm |
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ELSE |
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crot = zllm **( -1./nitergrot ) |
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ENDIF |
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ENDIF |
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|
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20 CONTINUE |
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|
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c petit test pour les operateurs non star: |
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c ---------------------------------------- |
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|
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c IF(.NOT.lstardis) THEN |
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fact = rad*24./float(jjm) |
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fact = fact*fact |
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PRINT*,'coef u ', fact/cdivu, 1./cdivu |
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PRINT*,'coef r ', fact/crot , 1./crot |
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PRINT*,'coef h ', fact/cdivh, 1./cdivh |
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c ENDIF |
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|
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c----------------------------------------------------------------------- |
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c variation verticale du coefficient de dissipation: |
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c -------------------------------------------------- |
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|
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DO l=1,llm |
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zvert(l)=1. |
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ENDDO |
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|
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fact=2. |
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c |
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DO l = 1, llm |
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zz = 1. - preff/presnivs(l) |
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zvert(l)= fact -( fact-1.)/( 1.+zz*zz ) |
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ENDDO |
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|
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|
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PRINT*,'Constantes de temps de la diffusion horizontale' |
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|
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tetamin = 1.e+6 |
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|
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DO l=1,llm |
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tetaudiv(l) = zvert(l)/tetagdiv |
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tetaurot(l) = zvert(l)/tetagrot |
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tetah(l) = zvert(l)/tetatemp |
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|
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IF( tetamin.GT. (1./tetaudiv(l)) ) tetamin = 1./ tetaudiv(l) |
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IF( tetamin.GT. (1./tetaurot(l)) ) tetamin = 1./ tetaurot(l) |
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IF( tetamin.GT. (1./ tetah(l)) ) tetamin = 1./ tetah(l) |
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ENDDO |
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|
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PRINT *,' INIDI tetamin dtvr ',tetamin,dtvr,iperiod |
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idissip = INT( tetamin/( 2.*dtvr*iperiod) ) * iperiod |
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PRINT *,' INIDI tetamin idissip ',tetamin,idissip |
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idissip = MAX(iperiod,idissip) |
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dtdiss = idissip * dtvr |
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PRINT *,' INIDI idissip dtdiss ',idissip,dtdiss |
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|
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DO l = 1,llm |
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PRINT*,zvert(l),dtdiss*tetaudiv(l),dtdiss*tetaurot(l), |
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* dtdiss*tetah(l) |
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ENDDO |
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|
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c |
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RETURN |
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END |
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