TURB_floRansSARoe1stFlux.F90

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!******************************************************************************
!
! Purpose: compute SA convective fluxes based on 1st-order Roe upwind scheme.
!
! Description: none.
!
! Input: region = data of current region.
!
! Output: region%levels%turb%rhs = convective fluxes added to the residual.
!
! Notes: none.
!
!******************************************************************************
!
! $Id: TURB_floRansSARoe1stFlux.F90,v 1.4 2008/12/06 08:44:44 mtcampbe Exp $
!
! Copyright: (c) 2003 by the University of Illinois
!
!******************************************************************************

SUBROUTINE turb_floranssaroe1stflux( region )

  USE moddatatypes
  USE moddatastruct, ONLY : t_region
  USE modinterfaces, ONLY : rflo_getdimensphys, rflo_getcelloffset, &
                            rflo_getnodeoffset
  USE turb_modinterfaces, ONLY : turb_floranssaroefluxpatch
  USE moderror
  USE modparameters
  USE turb_modparameters
  IMPLICIT NONE

#include "Indexing.h"

! ... parameters
  TYPE(t_region) :: region

! ... loop variables
  INTEGER :: i, j, k, ipatch

! ... local variables
  INTEGER :: ipcbeg, ipcend, jpcbeg, jpcend, kpcbeg, kpcend
  INTEGER :: ilev, icoff, ijcoff, inoff, ijnoff, ijkc0, ijkc1, ijkn, indsvel

  REAL(RFREAL)          :: qsl, qsr, fc
  REAL(RFREAL), POINTER :: cv(:,:), dv(:,:), si(:,:), sj(:,:), sk(:,:)
  REAL(RFREAL), POINTER :: tcv(:,:), trhs(:,:), sivel(:), sjvel(:), skvel(:)

!******************************************************************************

  CALL registerfunction( region%global,'TURB_FloRansSARoe1stFlux',&
  'TURB_floRansSARoe1stFlux.F90' )

! get dimensions and pointers -------------------------------------------------

  ilev = region%currLevel

  CALL rflo_getdimensphys( region,ilev,ipcbeg,ipcend, &
                           jpcbeg,jpcend,kpcbeg,kpcend )
  CALL rflo_getcelloffset( region,ilev,icoff,ijcoff )
  CALL rflo_getnodeoffset( region,ilev,inoff,ijnoff )

  cv     => region%levels(ilev)%mixt%cv
  dv     => region%levels(ilev)%mixt%dv
  tcv    => region%levels(ilev)%turb%cv
  trhs   => region%levels(ilev)%turb%rhs
  si     => region%levels(ilev)%grid%si
  sj     => region%levels(ilev)%grid%sj
  sk     => region%levels(ilev)%grid%sk
  sivel  => region%levels(ilev)%grid%siVel
  sjvel  => region%levels(ilev)%grid%sjVel
  skvel  => region%levels(ilev)%grid%skVel
  indsvel = region%levels(ilev)%grid%indSvel

! flux in i-direction (except through boundary) -------------------------------

  DO k=kpcbeg,kpcend
    DO j=jpcbeg,jpcend
      DO i=ipcbeg+1,ipcend
        ijkc0 = indijk(i  ,j,k,icoff,ijcoff)
        ijkc1 = indijk(i-1,j,k,icoff,ijcoff)
        ijkn  = indijk(i  ,j,k,inoff,ijnoff)

        qsl   = dv(dv_mixt_uvel,ijkc1)*si(xcoord,ijkn) + &
                dv(dv_mixt_vvel,ijkc1)*si(ycoord,ijkn) + &
                dv(dv_mixt_wvel,ijkc1)*si(zcoord,ijkn) - sivel(ijkn*indsvel)
        qsr   = dv(dv_mixt_uvel,ijkc0)*si(xcoord,ijkn) + &
                dv(dv_mixt_vvel,ijkc0)*si(ycoord,ijkn) + &
                dv(dv_mixt_wvel,ijkc0)*si(zcoord,ijkn) - sivel(ijkn*indsvel)

        fc    = 0.5_rfreal*(qsl*tcv(cv_sa_nutil,ijkc1)+ &
                            qsr*tcv(cv_sa_nutil,ijkc0))

        trhs(cv_sa_nutil,ijkc0) = trhs(cv_sa_nutil,ijkc0) + fc
        trhs(cv_sa_nutil,ijkc1) = trhs(cv_sa_nutil,ijkc1) - fc
      ENDDO   ! i
    ENDDO     ! j
  ENDDO       ! k

! flux in j-direction (except through boundary) -------------------------------

  DO k=kpcbeg,kpcend
    DO j=jpcbeg+1,jpcend
      DO i=ipcbeg,ipcend
        ijkc0 = indijk(i,j  ,k,icoff,ijcoff)
        ijkc1 = indijk(i,j-1,k,icoff,ijcoff)
        ijkn  = indijk(i,j  ,k,inoff,ijnoff)

        qsl   = dv(dv_mixt_uvel,ijkc1)*sj(xcoord,ijkn) + &
                dv(dv_mixt_vvel,ijkc1)*sj(ycoord,ijkn) + &
                dv(dv_mixt_wvel,ijkc1)*sj(zcoord,ijkn) - sjvel(ijkn*indsvel)
        qsr   = dv(dv_mixt_uvel,ijkc0)*sj(xcoord,ijkn) + &
                dv(dv_mixt_vvel,ijkc0)*sj(ycoord,ijkn) + &
                dv(dv_mixt_wvel,ijkc0)*sj(zcoord,ijkn) - sjvel(ijkn*indsvel)

        fc    = 0.5_rfreal*(qsl*tcv(cv_sa_nutil,ijkc1)+ &
                            qsr*tcv(cv_sa_nutil,ijkc0))

        trhs(cv_sa_nutil,ijkc0) = trhs(cv_sa_nutil,ijkc0) + fc
        trhs(cv_sa_nutil,ijkc1) = trhs(cv_sa_nutil,ijkc1) - fc
      ENDDO   ! i
    ENDDO     ! j
  ENDDO       ! k

! flux in k-direction (except through boundary) -------------------------------

  DO k=kpcbeg+1,kpcend
    DO j=jpcbeg,jpcend
      DO i=ipcbeg,ipcend
        ijkc0 = indijk(i,j,k  ,icoff,ijcoff)
        ijkc1 = indijk(i,j,k-1,icoff,ijcoff)
        ijkn  = indijk(i,j,k  ,inoff,ijnoff)

        qsl   = dv(dv_mixt_uvel,ijkc1)*sk(xcoord,ijkn) + &
                dv(dv_mixt_vvel,ijkc1)*sk(ycoord,ijkn) + &
                dv(dv_mixt_wvel,ijkc1)*sk(zcoord,ijkn) - skvel(ijkn*indsvel)
        qsr   = dv(dv_mixt_uvel,ijkc0)*sk(xcoord,ijkn) + &
                dv(dv_mixt_vvel,ijkc0)*sk(ycoord,ijkn) + &
                dv(dv_mixt_wvel,ijkc0)*sk(zcoord,ijkn) - skvel(ijkn*indsvel)

        fc    = 0.5_rfreal*(qsl*tcv(cv_sa_nutil,ijkc1)+ &
                            qsr*tcv(cv_sa_nutil,ijkc0))

        trhs(cv_sa_nutil,ijkc0) = trhs(cv_sa_nutil,ijkc0) + fc
        trhs(cv_sa_nutil,ijkc1) = trhs(cv_sa_nutil,ijkc1) - fc
      ENDDO   ! i
    ENDDO     ! j
  ENDDO       ! k

! fluxes through boundaries ---------------------------------------------------

  DO ipatch=1,region%nPatches
    CALL turb_floranssaroefluxpatch( region, &
                                     region%levels(ilev)%patches(ipatch) )
  ENDDO

! finalize --------------------------------------------------------------------

  CALL deregisterfunction( region%global )

END SUBROUTINE turb_floranssaroe1stflux

!******************************************************************************
!
! RCS Revision history:
!
! $Log: TURB_floRansSARoe1stFlux.F90,v $
! Revision 1.4  2008/12/06 08:44:44  mtcampbe
! Updated license.
!
! Revision 1.3  2008/11/19 22:17:56  mtcampbe
! Added Illinois Open Source License/Copyright
!
! Revision 1.2  2004/03/12 02:55:36  wasistho
! changed rocturb routine names
!
! Revision 1.1  2004/03/08 23:35:46  wasistho
! changed turb nomenclature
!
! Revision 1.1  2003/10/27 04:54:38  wasistho
! added RaNS upwind schemes
!
!
!******************************************************************************