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module inidissip_m |
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use dimens_m, only: llm |
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IMPLICIT NONE |
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private llm |
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REAL dtdiss |
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integer idissip ! periode de la dissipation (en pas) |
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real tetaudiv(llm),tetaurot(llm),tetah(llm) |
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real cdivu, crot, cdivh |
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contains |
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SUBROUTINE inidissip(lstardis, nitergdiv, nitergrot, niterh, tetagdiv, & |
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tetagrot, tetatemp) |
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! From dyn3d/inidissip.F, version 1.1.1.1 2004/05/19 12:53:06 |
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! Initialisation de la dissipation horizontale |
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USE comconst, ONLY : dtvr |
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USE comvert, ONLY : preff, presnivs |
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USE conf_gcm_m, ONLY : iperiod |
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USE dimens_m, ONLY : jjm, llm |
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USE paramet_m, ONLY : iip1, ip1jm, ip1jmp1, jjp1 |
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use new_unit_m, only: new_unit |
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LOGICAL, intent(in):: lstardis |
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INTEGER, intent(in):: nitergdiv, nitergrot, niterh |
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REAL, intent(in):: tetagdiv, tetagrot, tetatemp |
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! Variables local to the procedure: |
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REAL zvert(llm) |
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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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INTEGER l, ij, idum, ii, unit |
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REAL tetamin |
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REAL ran1 |
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!----------------------------------------------------------------------- |
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PRINT *, 'Call sequence information: inidissip' |
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! calcul des valeurs propres des operateurs par methode iterrative: |
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crot = -1. |
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cdivu = -1. |
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cdivh = -1. |
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! calcul de la valeur propre de divgrad: |
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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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END DO |
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END DO |
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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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END DO |
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CALL filtreg(zh, jjp1, 1, 2, 1, .TRUE., 1) |
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CALL minmax(iip1*jjp1, zh, zhmin, zhmax) |
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IF (zhmin>=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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END IF |
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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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END IF |
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CALL minmax(iip1*jjp1, zh, zhmin, zhmax) |
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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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END DO |
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END DO |
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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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END IF |
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! calcul des valeurs propres de gradiv (ii =1) et nxgrarot(ii=2) |
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PRINT *, 'calcul des valeurs propres' |
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DO ii = 1, 2 |
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DO ij = 1, ip1jmp1 |
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zu(ij) = ran1(idum) - .5 |
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END DO |
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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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END DO |
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CALL filtreg(zv, jjm, 1, 2, 1, .FALSE., 1) |
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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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ullm = abs(ullm) |
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vllm = abs(vllm) |
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DO l = 1, 50 |
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IF (ii==1) THEN |
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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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END IF |
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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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END IF |
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END IF |
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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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ullm = abs(ullm) |
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vllm = abs(vllm) |
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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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END DO |
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DO ij = 1, ip1jm |
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zv(ij) = zv(ij)*z1llm |
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END DO |
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end DO |
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IF (ii==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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END IF |
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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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END IF |
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END IF |
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END DO |
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PRINT *, 'cdivu = ', cdivu |
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PRINT *, 'crot = ', crot |
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PRINT *, 'cdivh = ', cdivh |
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! Variation verticale du coefficient de dissipation : |
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zvert = 2. - 1. / (1. + (1. - preff / presnivs)**2) |
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tetaudiv = zvert / tetagdiv |
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tetaurot = zvert / tetagrot |
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tetah = zvert / tetatemp |
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call new_unit(unit) |
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open(unit, file="inidissip.csv", status="replace", action="write") |
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write(unit, fmt=*) "tetaudiv tetaurot tetah" ! title line |
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do l = 1, llm |
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write(unit, fmt=*) tetaudiv(l), tetaurot(l), tetah(l) |
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end do |
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close(unit) |
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print *, 'Created file "inidissip.csv".' |
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tetamin = min(1E6, minval(1. / tetaudiv), minval(1. / tetaurot), & |
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minval(1. / tetah)) |
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PRINT *, 'tetamin = ', tetamin |
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idissip = max(iperiod, int(tetamin / (2 * dtvr * iperiod)) * iperiod) |
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PRINT *, 'idissip = ', idissip |
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dtdiss = idissip * dtvr |
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PRINT *, 'dtdiss = ', dtdiss |
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END SUBROUTINE inidissip |
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end module inidissip_m |