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guez |
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SUBROUTINE fyppm(vc, p, dc, flux, imr, jnp, j1, j2, a6, ar, al, jord) |
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PARAMETER (r3=1./3., r23=2./3.) |
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REAL vc(imr, *), flux(imr, *), p(imr, *), dc(imr, *) |
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! Local work arrays. |
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REAL ar(imr, jnp), al(imr, jnp), a6(imr, jnp) |
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INTEGER lmt |
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! logical first |
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! data first /.true./ |
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! SAVE LMT |
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imh = imr/2 |
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jmr = jnp - 1 |
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j11 = j1 - 1 |
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imjm1 = imr*(j2-j1+2) |
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len = imr*(j2-j1+3) |
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! if(first) then |
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! IF(JORD.LE.0) then |
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! if(JMR.GE.90) then |
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! LMT = 0 |
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! elseif(JMR.GE.45) then |
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! LMT = 1 |
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! else |
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! LMT = 2 |
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! endif |
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! else |
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! LMT = JORD - 3 |
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! endif |
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! first = .false. |
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! endif |
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! modifs pour pouvoir choisir plusieurs schemas PPM |
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lmt = jord - 3 |
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DO i = 1, imr*jmr |
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al(i, 2) = 0.5*(p(i,1)+p(i,2)) + (dc(i,1)-dc(i,2))*r3 |
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ar(i, 1) = al(i, 2) |
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END DO |
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! Poles: |
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DO i = 1, imh |
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al(i, 1) = al(i+imh, 2) |
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al(i+imh, 1) = al(i, 2) |
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ar(i, jnp) = ar(i+imh, jmr) |
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ar(i+imh, jnp) = ar(i, jmr) |
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END DO |
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! cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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! Rajout pour LMDZ.3.3 |
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! ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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ar(imr, 1) = al(1, 1) |
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ar(imr, jnp) = al(1, jnp) |
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! cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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DO i = 1, len |
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a6(i, j11) = 3.*(p(i,j11)+p(i,j11)-(al(i,j11)+ar(i,j11))) |
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END DO |
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IF (lmt<=2) CALL lmtppm(dc(1,j11), a6(1,j11), ar(1,j11), al(1,j11), & |
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p(1,j11), len, lmt) |
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DO i = 1, imjm1 |
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IF (vc(i,j1)>0.) THEN |
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flux(i, j1) = ar(i, j11) + 0.5*vc(i, j1)*(al(i,j11)-ar(i,j11)+a6(i,j11) & |
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*(1.-r23*vc(i,j1))) |
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ELSE |
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flux(i, j1) = al(i, j1) - 0.5*vc(i, j1)*(ar(i,j1)-al(i,j1)+a6(i,j1)*(1. & |
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+r23*vc(i,j1))) |
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END IF |
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END DO |
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RETURN |
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END SUBROUTINE fyppm |
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