INRT_DefineDrag.F90

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!******************************************************************************
!
! Purpose: Defines the interaction Drag.
!
! Description: none.
!
! Input: region = data of current region.
!
! Output: modifies region%inrtInput%inrts
!
! Notes:
!
!   Whereas INRT_Initialize sets up everything generic to all interactions,
!   this routine sets up things specific to this interaction.
!
!   In particular, this is where the designer
!
!   (a) gives values for all the interactions parameters (or leaves them
!       as default values given in INRT_Initialize).  These parameters are
!       described in ModInteract.
!
!   (b) defines the Edges of the interaction.  Here the type of an Edge is
!       given (i.e., whether it transports mass, momentum, or energy), as well
!       as the indices of the Nodes at either end.  For each momentum Edge
!       he must call the routine INRT_FinishMomentumEdge.
!
!******************************************************************************
!
! $Id: INRT_DefineDrag.F90,v 1.3 2008/12/06 08:44:31 mtcampbe Exp $
!
! Copyright: (c) 2003 by the University of Illinois
!
!******************************************************************************

SUBROUTINE inrt_definedrag( region )

  USE moddatatypes
  USE moddatastruct, ONLY : t_region
  USE modglobal,     ONLY : t_global
  USE modinteract
  USE moderror
  USE inrt_modparameters

  USE inrt_modinterfaces, ONLY : inrt_allocateauxillary,inrt_finishmomentumedge
  IMPLICIT NONE

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

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

  INTEGER :: nedges,nplag01

  TYPE(t_inrt_input),    POINTER :: input
  TYPE(t_inrt_interact), POINTER :: inrt
  TYPE(t_inrt_edge),     POINTER :: edge
  TYPE(t_global),        POINTER :: global

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

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

  global => region%global

  CALL registerfunction( global,'INRT_DefineDrag',&
  'INRT_DefineDrag.F90' )

! begin -----------------------------------------------------------------------

! allocate memory for edges, switches and data

  input => region%inrtInput
  inrt  => input%inrts(inrt_type_drag)

  inrt%name = "Drag"

  nplag01 = 1
  IF (input%nPlag == 0) nplag01 = 0

  nedges = nplag01 * inrt_drag_nedges

  CALL inrt_allocateauxillary(global,inrt,nedges, &
    inrt_swi_drag_total,inrt_dat_drag_total)

! set parameters for this interaction:  see comment in ModInteract

! ** for this interaction, all parameters keep their default values **

! define Edges

  IF (nedges > 0) THEN

    edge => inrt%edges(inrt_drag_l_xmom_g)

    edge%tEdge    = inrt_edge_mome
    edge%iNode(1) = input%indPlagJoint
    edge%iNode(2) = input%indMixt

! - the Insulate Token for this Edge is placed on the Lagrangian particle
! - end of the Edge, i.e., end number 1.

    CALL inrt_finishmomentumedge(global,inrt,inrt_drag_l_xmom_g,1)

  END IF ! nEdges

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

  CALL deregisterfunction( global )

END SUBROUTINE inrt_definedrag

!******************************************************************************
!
! RCS Revision history:
!
! $Log: INRT_DefineDrag.F90,v $
! Revision 1.3  2008/12/06 08:44:31  mtcampbe
! Updated license.
!
! Revision 1.2  2008/11/19 22:17:44  mtcampbe
! Added Illinois Open Source License/Copyright
!
! Revision 1.1  2004/12/01 21:56:22  fnajjar
! Initial revision after changing case
!
! Revision 1.4  2003/04/02 22:32:03  jferry
! codified Activeness and Permission structures for rocinteract
!
! Revision 1.3  2003/03/24 23:30:52  jferry
! overhauled rocinteract to allow interaction design to use user input
!
! Revision 1.2  2003/03/11 16:09:39  jferry
! Added comments
!
! Revision 1.1  2003/03/04 22:12:35  jferry
! Initial import of Rocinteract
!
!******************************************************************************