PerfgasGasVars.F90

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!******************************************************************************
!
! Purpose: compute gas variables for a thermally and calorically
!          perfect gas.
!
! Description: none.
!
! Input: inBeg    = first value to update
!        inEnd    = last value to update
!        indCp    = indicates if cp varies over cells (=1) or is constant (=0)
!        indMol   = indicates if the mol mass varies over cells (=1) or is
!                   constant (=0)
!        refCp    = reference value of specific heat at const. pressure
!        refGamma = reference value of the specific heat ratio
!        cv       = conservative variables
!
! Output: gv = gas variables (cp, molecular mass)
!
! Notes: it is assumed that the values are constant and given by the
!        reference values.
!
!******************************************************************************
!
! $Id: PerfgasGasVars.F90,v 1.3 2008/12/06 08:44:09 mtcampbe Exp $
!
! Copyright: (c) 2001 by the University of Illinois
!
!******************************************************************************

SUBROUTINE perfgasgasvars( inBeg,inEnd,indCp,indMol,refCp,refGamma,cv,gv )

  USE moddatatypes
  USE modglobal, ONLY : t_global
  USE modparameters
  USE modinterfaces, ONLY: mixtperf_m_r, mixtperf_r_cpg
  IMPLICIT NONE

! ... parameters
  INTEGER :: inbeg, inend, indcp, indmol

  TYPE(t_global), POINTER :: global

  REAL(RFREAL)          :: refcp, refgamma
  REAL(RFREAL), POINTER :: cv(:,:), gv(:,:)

! ... loop variables
  INTEGER :: ic

! ... local variables
  REAL(RFREAL) :: rgas

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

  rgas = mixtperf_r_cpg( refcp,refgamma )

  DO ic=inbeg,inend
    gv(gv_mixt_mol,ic*indmol) = mixtperf_m_r( rgas )
    gv(gv_mixt_cp ,ic*indcp ) = refcp
  ENDDO

END SUBROUTINE perfgasgasvars

!******************************************************************************
!
! RCS Revision history:
!
! $Log: PerfgasGasVars.F90,v $
! Revision 1.3  2008/12/06 08:44:09  mtcampbe
! Updated license.
!
! Revision 1.2  2008/11/19 22:17:23  mtcampbe
! Added Illinois Open Source License/Copyright
!
! Revision 1.1  2004/12/01 16:50:00  haselbac
! Initial revision after changing case
!
! Revision 1.8  2003/11/20 16:40:35  mdbrandy
! Backing out RocfluidMP changes from 11-17-03
!
! Revision 1.5  2002/09/05 17:40:20  jblazek
! Variable global moved into regions().
!
! Revision 1.4  2002/07/05 23:20:46  jblazek
! Corrected bug in perfgasDependentVars.F90; did some cosmetics.
!
! Revision 1.3  2002/06/05 18:33:39  haselbac
! Converted to use of mixtPerf routines
!
! Revision 1.2  2002/01/23 03:51:24  jblazek
! Added low-level time-stepping routines.
!
! Revision 1.1  2002/01/10 00:02:06  jblazek
! Added calculation of mixture properties.
!
!******************************************************************************