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AFiD/ImplicitAndUpdateVZ.F90
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
! ! | |
! FILE: ImplicitAndUpdateVZ.F90 ! | |
! CONTAINS: subroutine ImplicitAndUpdateVZ ! | |
! ! | |
! PURPOSE: Compute the linear terms associated to ! | |
! the velocity in the z (horizontal) dimension ! | |
! and call the implicit solver. ! | |
! After this routine, the velocity field in z has ! | |
! been updated to the new timestep ! | |
! ! | |
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
subroutine ImplicitAndUpdateVZ | |
use param | |
use local_arrays, only: vz,dq,ruz,rhs,pr | |
use decomp_2d, only: xstart,xend | |
implicit none | |
integer :: kc,jc,ic,imm | |
integer :: kmm,kpp | |
real :: alre,amm,acc,app,udz | |
real :: dxxvz,dzp | |
alre=al/ren | |
udz=dz*al | |
!$OMP PARALLEL DO & | |
!$OMP DEFAULT(none) & | |
!$OMP SHARED(xstart,xend,nxm,vz,pr) & | |
!$OMP SHARED(kmv,kpv,am3sk,ac3sk,ap3sk) & | |
!$OMP SHARED(dz,al,ga,ro,alre,dt,dq) & | |
!$OMP SHARED(udx3m,rhs,ruz) & | |
!$OMP PRIVATE(ic,jc,kc,imm,kmm,kpp) & | |
!$OMP PRIVATE(amm,acc,app) & | |
!$OMP PRIVATE(dxxvz,dzp) | |
do ic=xstart(3),xend(3) | |
imm=ic-1 | |
do jc=xstart(2),xend(2) | |
do kc=1,nxm | |
kmm=kmv(kc) | |
kpp=kpv(kc) | |
amm=am3sk(kc) | |
acc=ac3sk(kc) | |
app=ap3sk(kc) | |
! Second derivative in x-direction of vz | |
! | |
dxxvz=vz(kpp,jc,ic)*app & | |
+vz(kc,jc,ic)*acc & | |
+vz(kmm,jc,ic)*amm | |
! component of grad(pr) along z direction | |
! | |
dzp=(pr(kc,jc,ic)-pr(kc,jc,imm))*dz*al | |
! Calculate right hand side of Eq. 5 (VO96) | |
! | |
rhs(kc,jc,ic)=(ga*dq(kc,jc,ic)+ro*ruz(kc,jc,ic) & | |
+alre*dxxvz-dzp)*dt | |
! Store the non-linear terms for the calculation of | |
! the next timestep | |
ruz(kc,jc,ic)=dq(kc,jc,ic) | |
enddo | |
enddo | |
enddo | |
!$OMP END PARALLEL DO | |
call SolveImpEqnUpdate_YZ(vz,rhs) | |
return | |
end |