Commit 5b993c8a authored by Alice MAISON's avatar Alice MAISON

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!-------------------------------------------------------------------------------
!VERS
! This file is part of Code_Saturne, a general-purpose CFD tool.
!
! Copyright (C) 1998-2019 EDF S.A.
!
! This program is free software; you can redistribute it and/or modify it under
! the terms of the GNU General Public License as published by the Free Software
! Foundation; either version 2 of the License, or (at your option) any later
! version.
!
! This program is distributed in the hope that it will be useful, but WITHOUT
! ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
! FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
! details.
!
! You should have received a copy of the GNU General Public License along with
! this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
! Street, Fifth Floor, Boston, MA 02110-1301, USA.
!-------------------------------------------------------------------------------
!===============================================================================
!> \file cs_user_physical_properties.f90
!>
!> \brief Definition of physical variable laws.
!>
!> See \subpage physical_properties for examples.
!>
!===============================================================================
!> \brief Definition of physical variable laws.
!>
!> \section Warning
!>
!> It is \b forbidden to modify turbulent viscosity \c visct here
!> (a specific subroutine is dedicated to that: \ref usvist)
!>
!> - icp = 0 must <b> have been specified </b>
!> in \ref usipsu if we wish to define a variable specific heat
!> cpro_cp (otherwise: memory overwrite).
!>
!> - the kivisl field integer key (diffusivity_id)
!> must <b> have been specified </b>
!> in \ref usipsu if we wish to define a variable viscosity
!> \c viscls.
!>
!>
!> \remarks
!> - This routine is called at the beginning of each time step
!> Thus, <b> AT THE FIRST TIME STEP </b> (non-restart case), the only
!> values initialized before this call are those defined
!> - in the GUI or \ref usipsu (cs_user_parameters.f90)
!> - density (initialized at \c ro0)
!> - viscosity (initialized at \c viscl0)
!> - in the GUI or \ref cs_user_initialization
!> - calculation variables (initialized at 0 by defaut
!> or to the value given in the GUI or in \ref cs_user_initialization)
!>
!> - We may define here variation laws for cell properties, for:
!> - density: rom kg/m3
!> - density at boundary faces: romb kg/m3)
!> - molecular viscosity: cpro_viscl kg/(m s)
!> - specific heat: cpro_cp J/(kg degrees)
!> - diffusivities associated with scalars: cpro_vscalt kg/(m s)
!>
!> \b Warning: if the scalar is the temperature, cpro_vscalt corresponds
!> to its conductivity (Lambda) in W/(m K)
!>
!>
!> The types of boundary faces at the previous time step are available
!> (except at the first time step, where arrays \c itypfb and \c itrifb have
!> not been initialized yet)
!>
!> It is recommended to keep only the minimum necessary in this file
!> (i.e. remove all unused example code)
!>
!>
!> \section usphyv_cell_id Cells identification
!>
!> Cells may be identified using the \ref getcel subroutine.
!> The syntax of this subroutine is described in the
!> \ref cs_user_boundary_conditions subroutine,
!> but a more thorough description can be found in the user guide.
!
!-------------------------------------------------------------------------------
!-------------------------------------------------------------------------------
! Arguments
!______________________________________________________________________________.
! mode name role !
!______________________________________________________________________________!
!> \param[in] nvar total number of variables
!> \param[in] nscal total number of scalars
!> \param[in] mbrom indicator of filling of romb array
!> \param[in] dt time step (per cell)
!_______________________________________________________________________________
subroutine usphyv &
( nvar , nscal , &
mbrom , &
dt )
!===============================================================================
!===============================================================================
! Module files
!===============================================================================
use atincl
use paramx
use pointe
use numvar
use optcal
use cstphy
use cstnum
use entsor
use parall
use period
use ppppar
use ppthch
use ppincl
use field
use mesh
use lagran
use cs_c_bindings
!===============================================================================
implicit none
! Arguments
integer nvar , nscal
integer mbrom
double precision dt(ncelet)
! Local variables
integer ivart, iel
double precision xvart, rhum, rscp, pp, zent
double precision lrhum, lrscp
double precision qsl, deltaq
double precision qliq, qwt, tliq, dum
double precision, dimension(:), pointer :: brom, crom
double precision, dimension(:), pointer :: cvar_vart, cvar_totwt
double precision, dimension(:), pointer :: cpro_tempc, cpro_liqwt
double precision, dimension(:), pointer :: cpro_beta
logical activate
!===============================================================================
! 0. INITIALISATIONS A CONSERVER
!===============================================================================
activate = .false.
! Initialize variables to avoid compiler warnings
ivart = -1
if (idilat.eq.0) then
call field_get_val_s_by_name("thermal_expansion", cpro_beta)
endif
! This routine computes the density and the thermodynamic temperature.
! The computations require the pressure profile which is here taken from
! the meteo file. If no meteo file is used, the user should
! give the laws for RHO and T in cs_user_physical_properties.f90
if (imeteo.ne.0) return
!===============================================================================
! Positions des variables, coefficients
! -------------------------------------
! --- Numero de variable thermique
! (et de ses conditions limites)
! (Pour utiliser le scalaire utilisateur 2 a la place, ecrire
! IVART = ISCA(2)
if (iscalt.gt.0) then
ivart = isca(iscalt)
else
write(nfecra,9010) iscalt
call csexit (1)
endif
! --- Masse volumique
call field_get_val_s(icrom, crom)
call field_get_val_s(ibrom, brom)
call field_get_val_s(itempc,cpro_tempc)
call field_get_val_s(ivarfl(ivart), cvar_vart)
! From potential temperature, compute:
! - Temperature in Celsius
! - Density
! ----------------------
! Computes the perfect gaz constants according to the physics
rhum = rair
rscp = rair/cp0
lrhum = rair
lrscp = rair/cp0
do iel = 1, ncel
xvart = cvar_vart(iel) ! The thermal scalar is potential temperature
zent = xyzcen(3,iel)
pp = p0
! Temperature in Celsius in cell centers:
! ---------------------------------------
! law: T = theta * (p/ps) ** (Rair/Cp0)
cpro_tempc(iel) = xvart*(pp/ps)**lrscp
cpro_tempc(iel) = cpro_tempc(iel) - tkelvi
! Density in cell centers:
! ------------------------
! law: RHO = P / ( Rair * T(K) )
if (idilat.eq.0) then
crom(iel) = ro0
! "delta rho = - beta rho0 delta theta" gives
! "beta = 1 / theta"
cpro_beta(iel) = 1.d0 / xvart
else
crom(iel) = pp/(lrhum*xvart)*(ps/pp)**lrscp
endif
enddo
!===============================================================================
! FORMATS
!----
9010 format( &
'@ ',/,&
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@',/,&
'@ ',/,&
'@ @@ ATTENTION : ARRET LORS DU CALCUL DES GRANDEURS PHYSIQUES',/,&
'@ ========= ',/,&
'@ APPEL A csexit DANS LE SOUS PROGRAMME atphyv ',/,&
'@ ',/,&
'@ La variable dont dependent les proprietes physiques ne ',/,&
'@ semble pas etre une variable de calcul. ',/,&
'@ En effet, on cherche a utiliser la temperature alors que',/,&
'@ ISCALT = ',I10 ,/,&
'@ Le calcul ne sera pas execute. ',/,&
'@ ',/,&
'@ Verifier le codage de cs_user_physical_properties,', /,&
'@ (et le test lors de la definition de IVART).' ,/,&
'@ Verifier la definition des variables de calcul dans ',/,&
'@ usipsu. Si un scalaire doit jouer le role de la ',/,&
'@ temperature, verifier que ISCALT a ete renseigne. ',/,&
'@ ',/,&
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@',/,&
'@ ',/)
!----
! FIN
!----
return
end subroutine usphyv
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