/usr/share/code_saturne/user_examples/cs_user_boundary_conditions-advanced.f90 is in code-saturne-data 4.3.3+repack-1build1.
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! Code_Saturne version 4.3.3
! --------------------------
! This file is part of Code_Saturne, a general-purpose CFD tool.
!
! Copyright (C) 1998-2016 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.
!-------------------------------------------------------------------------------
!===============================================================================
! Function:
! ---------
!> \file cs_user_boundary_conditions-advanced.f90
!>
!> \brief Advanced example of cs_user_boundary_conditions.f90 subroutine
!>
!-------------------------------------------------------------------------------
!-------------------------------------------------------------------------------
! Arguments
!______________________________________________________________________________.
! mode name role !
!______________________________________________________________________________!
!> \param[in] nvar total number of variables
!> \param[in] nscal total number of scalars
!> \param[out] icodcl boundary condition code:
!> - 1 Dirichlet
!> - 2 Radiative outlet
!> - 3 Neumann
!> - 4 sliding and
!> \f$ \vect{u} \cdot \vect{n} = 0 \f$
!> - 5 smooth wall and
!> \f$ \vect{u} \cdot \vect{n} = 0 \f$
!> - 6 rough wall and
!> \f$ \vect{u} \cdot \vect{n} = 0 \f$
!> - 9 free inlet/outlet
!> (input mass flux blocked to 0)
!> \param[in] itrifb indirection for boundary faces ordering
!> \param[in,out] itypfb boundary face types
!> \param[out] izfppp boundary face zone number
!> \param[in] dt time step (per cell)
!> \param[in,out] rcodcl boundary condition values:
!> - rcodcl(1) value of the dirichlet
!> - rcodcl(2) value of the exterior exchange
!> coefficient (infinite if no exchange)
!> - rcodcl(3) value flux density
!> (negative if gain) in w/m2 or roughness
!> in m if icodcl=6
!> -# for the velocity \f$ (\mu+\mu_T)
!> \gradt \, \vect{u} \cdot \vect{n} \f$
!> -# for the pressure \f$ \Delta t
!> \grad P \cdot \vect{n} \f$
!> -# for a scalar \f$ cp \left( K +
!> \dfrac{K_T}{\sigma_T} \right)
!> \grad T \cdot \vect{n} \f$
!_______________________________________________________________________________
subroutine cs_f_user_boundary_conditions &
( nvar , nscal , &
icodcl , itrifb , itypfb , izfppp , &
dt , &
rcodcl )
!===============================================================================
!===============================================================================
! Module files
!===============================================================================
use paramx
use numvar
use optcal
use cstphy
use cstnum
use entsor
use parall
use period
use ihmpre
use ppppar
use ppthch
use coincl
use cpincl
use ppincl
use ppcpfu
use atincl
use ctincl
use cs_fuel_incl
use mesh
use field
!===============================================================================
implicit none
! Arguments
integer nvar , nscal
integer icodcl(nfabor,nvarcl)
integer itrifb(nfabor), itypfb(nfabor)
integer izfppp(nfabor)
double precision dt(ncelet)
double precision rcodcl(nfabor,nvarcl,3)
! Local variables
!< [loc_var_dec]
integer ifac, iel, ii, ivar
integer izone
integer ilelt, nlelt
double precision uref2, d2s3
double precision rhomoy, xdh, xustar2
double precision xitur
double precision xkent, xeent
integer, allocatable, dimension(:) :: lstelt
!< [loc_var_dec]
!===============================================================================
!===============================================================================
! Initialization
!===============================================================================
!< [init]
allocate(lstelt(nfabor)) ! temporary array for boundary faces selection
d2s3 = 2.d0/3.d0
!< [init]
!===============================================================================
! Assign boundary conditions to boundary faces here
! For each subset:
! - use selection criteria to filter boundary faces of a given subset
! - loop on faces from a subset
! - set the boundary condition for each face
!===============================================================================
! Example of specific boundary conditions fully defined by the user,
! on the basis of wall conditions.
! selection (mass flow computation, specific logging, ...)
! We prescribe for group '1234' a wall, with in addition:
! - a Dirichlet condition on velocity (sliding wall with no-slip condition)
! - a Dirichlet condition on the first scalar.
!< [example_1]
call getfbr('1234', nlelt, lstelt)
!==========
do ilelt = 1, nlelt
ifac = lstelt(ilelt)
itypfb(ifac) = iparoi
icodcl(ifac,iu ) = 1
rcodcl(ifac,iu,1) = 1.d0
rcodcl(ifac,iu,2) = rinfin
rcodcl(ifac,iu,3) = 0.d0
icodcl(ifac,iv ) = 1
rcodcl(ifac,iv,1) = 0.d0
rcodcl(ifac,iv,2) = rinfin
rcodcl(ifac,iv,3) = 0.d0
icodcl(ifac,iw ) = 1
rcodcl(ifac,iw,1) = 0.d0
rcodcl(ifac,iw,2) = rinfin
rcodcl(ifac,iw,3) = 0.d0
ivar = isca(1)
icodcl(ifac,ivar ) = 1
rcodcl(ifac,ivar,1) = 10.d0
rcodcl(ifac,ivar,2) = rinfin
rcodcl(ifac,ivar,3) = 0.d0
enddo
!< [example_1]
! Example of specific boundary conditions fully defined by the user,
! with no definition of a specific type.
! We prescribe at group '5678' a homogeneous Neumann condition for
! all variables.
!< [example_2]
call getfbr('5678', nlelt, lstelt)
!==========
do ilelt = 1, nlelt
ifac = lstelt(ilelt)
! CAUTION: the value of itypfb must be assigned to iindef
itypfb(ifac) = iindef
do ii = 1, nvar
icodcl(ifac,ii ) = 3
rcodcl(ifac,ii,1) = 0.d0
rcodcl(ifac,ii,2) = rinfin
rcodcl(ifac,ii,3) = 0.d0
enddo
enddo
!< [example_2]
! Example of specific boundary conditions fully defined by the user,
! with the definition of a specific type, for example for future
! selection (mass flow computation, specific logging, ...)
! We prescribe for group '6789' a homogeneous Neumann condition for
! all variables, except for the first
! scalar, for which we select a homogeneous Dirichlet.
!< [example_3]
call getfbr('6789', nlelt, lstelt)
!==========
do ilelt = 1, nlelt
ifac = lstelt(ilelt)
! CAUTION: the value of itypfb must be different from
! iparoi, ientre, isymet, isolib, iindef,
! greater than or equal to 1, and
! less than or equal to ntypmx;
! these integers are defined in paramx.h
itypfb(ifac) = 89
do ii = 1, nvar
icodcl(ifac,ii ) = 3
rcodcl(ifac,ii,1) = 0.d0
rcodcl(ifac,ii,2) = rinfin
rcodcl(ifac,ii,3) = 0.d0
enddo
icodcl(ifac,isca(1) ) = 1
rcodcl(ifac,isca(1),1) = 0.d0
rcodcl(ifac,isca(1),2) = rinfin
rcodcl(ifac,isca(1),3) = 0.d0
enddo
!< [example_3]
!--------
! Formats
!--------
!----
! End
!----
!< [finalize]
deallocate(lstelt) ! temporary array for boundary faces selection
!< [finalize]
return
end subroutine cs_f_user_boundary_conditions
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