AverageVecVar.F90

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!******************************************************************************
!
! Purpose: two point averaging of vector variable
!
! Description: vector variable fvar is averaged from two reference values
!              at location ijkN1 and ijkN2, and the result is stored as
!              fvar at location ijkD
!
! Input: ijkD  = location where averaged vector is stored
!        ijkN1 = location of first referenced vector
!        ijkN2 = location of second referenced vector
!        iFBeg = begin index of vector variable component
!        iFEnd = end index of vector variable component
!        fvar  = vector variable array to be averaged from ijkN1 and ijkN2
!
! Output: fvar = averaged vector variable stored at ijkD
!
! Notes: this routine is meant as service routine for RFLO_CopyEdgeFaceNorm
!        and RFLO_CopyEdgeFaceParal in rocflo/, but can be employed by
!        other routines if needed 
!
!******************************************************************************
!
! $Id: AverageVecVar.F90,v 1.3 2008/12/06 08:44:08 mtcampbe Exp $
!
! Copyright: (c) 2001 by the University of Illinois
!
!******************************************************************************

SUBROUTINE averagevecvar( ijkD,ijkN1,ijkN2,iFBeg,iFEnd,fvar )

  USE moddatatypes
  IMPLICIT NONE

! ... parameters
  INTEGER               :: ijkd, ijkn1, ijkn2, ifbeg, ifend
  REAL(RFREAL), POINTER :: fvar(:,:)

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

  fvar(ifbeg:ifend,ijkd) = 0.5_rfreal*(fvar(ifbeg:ifend,ijkn1)+ &
                                       fvar(ifbeg:ifend,ijkn2))

END SUBROUTINE averagevecvar

!******************************************************************************
!
! RCS Revision history:
!
! $Log: AverageVecVar.F90,v $
! Revision 1.3  2008/12/06 08:44:08  mtcampbe
! Updated license.
!
! Revision 1.2  2008/11/19 22:17:22  mtcampbe
! Added Illinois Open Source License/Copyright
!
! Revision 1.1  2004/12/01 16:47:51  haselbac
! Initial revision after changing case
!
! Revision 1.4  2002/08/30 01:47:58  jblazek
! Added support for moving grids.
!
! Revision 1.3  2002/08/22 01:45:53  jblazek
! And also removed ModError ...
!
! Revision 1.2  2002/08/22 01:43:04  jblazek
! Removed RegisterFunction and DeregisterFunction to speed things up.
!
! Revision 1.1  2002/07/30 02:41:34  wasistho
! promoted from contained routine to own file
!
!******************************************************************************