PLAG_CalcRhsPosition.F90

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!******************************************************************************
!
! Purpose: compute RHS for Lagrangian particle position field.
!
! Description: none.
!
! Input: region  = data of current region.
!
! Output: region%levels%plag%rhs
!
! Notes: Use negative values of rhs for consistent RK Updating step.
!
!******************************************************************************
!
! $Id: PLAG_CalcRhsPosition.F90,v 1.3 2008/12/06 08:44:33 mtcampbe Exp $
!
! Copyright: (c) 2002 by the University of Illinois
!
!******************************************************************************

SUBROUTINE plag_calcrhsposition( region )

  USE moddatatypes
  USE moddatastruct, ONLY : t_region
  USE modglobal, ONLY     : t_global
  USE modpartlag, ONLY    : t_plag
  USE moderror
  USE modparameters
  USE plag_modparameters
  IMPLICIT NONE

! ... parameters
  TYPE(t_region), INTENT(INOUT), TARGET :: region

! ... loop variables
  INTEGER :: ipcls

! ... local variables
  CHARACTER(CHRLEN) :: rcsidentstring

#ifdef RFLO
  INTEGER :: ilev
#endif
  INTEGER :: npcls
  REAL(RFREAL), POINTER, DIMENSION(:,:) :: pdv, prhs
  
  TYPE(t_plag) ,  POINTER :: pplag  
  TYPE(t_global), POINTER :: global 
   
!******************************************************************************

  rcsidentstring = '$RCSfile: PLAG_CalcRhsPosition.F90,v $ $Revision: 1.3 $'

  global => region%global
  
  CALL registerfunction( global, 'PLAG_calcRhsPosition',&
  'PLAG_CalcRhsPosition.F90' )

! Get dimensions --------------------------------------------------------------

#ifdef RFLO
  ilev  = region%currLevel    
  npcls = region%levels(ilev)%plag%nPcls
#endif
#ifdef RFLU
  npcls = region%plag%nPcls
#endif

! Set pointers ----------------------------------------------------------------

#ifdef RFLO    
  pplag => region%levels(ilev)%plag
#endif
#ifdef RFLU
  pplag => region%plag
#endif
  pdv   => pplag%dv 
  prhs  => pplag%rhs

! Calculate RHS for position vector field -------------------------------------

  DO ipcls = 1, npcls      
    prhs(cv_plag_xpos,ipcls) = -pdv(dv_plag_uvel,ipcls)    
    prhs(cv_plag_ypos,ipcls) = -pdv(dv_plag_vvel,ipcls)       
    prhs(cv_plag_zpos,ipcls) = -pdv(dv_plag_wvel,ipcls)         
  END DO  ! iPcls

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

  CALL deregisterfunction( global )

END SUBROUTINE plag_calcrhsposition

!******************************************************************************
!
! RCS Revision history:
!
! $Log: PLAG_CalcRhsPosition.F90,v $
! Revision 1.3  2008/12/06 08:44:33  mtcampbe
! Updated license.
!
! Revision 1.2  2008/11/19 22:17:45  mtcampbe
! Added Illinois Open Source License/Copyright
!
! Revision 1.1  2004/12/01 20:57:03  fnajjar
! Initial revision after changing case
!
! Revision 1.2  2004/02/06 21:18:20  fnajjar
! Initial Integration of Rocpart with Rocflu
!
! Revision 1.1  2002/10/25 14:14:44  f-najjar
! Initial Import of Rocpart
!
!
!******************************************************************************