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/usr/share/code_saturne/user/cs_user_radiative_transfer.c is in code-saturne-data 4.3.3+repack-1build1.

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/*============================================================================
 * Radiation solver operations.
 *============================================================================*/

/* 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.
 */

/*----------------------------------------------------------------------------*/

#include "cs_defs.h"

/*----------------------------------------------------------------------------
 * Standard C library headers
 *----------------------------------------------------------------------------*/

#include <assert.h>
#include <string.h>
#include <math.h>

#if defined(HAVE_MPI)
#include <mpi.h>
#endif

/*----------------------------------------------------------------------------
 *  Local headers
 *----------------------------------------------------------------------------*/

#include "bft_mem.h"
#include "bft_error.h"
#include "bft_printf.h"

#include "fvm_writer.h"

#include "cs_base.h"
#include "cs_field.h"
#include "cs_field_pointer.h"
#include "cs_field_operator.h"
#include "cs_math.h"
#include "cs_mesh.h"
#include "cs_mesh_location.h"
#include "cs_mesh_quantities.h"
#include "cs_halo.h"
#include "cs_log.h"
#include "cs_parall.h"
#include "cs_parameters.h"
#include "cs_physical_constants.h"
#include "cs_physical_model.h"
#include "cs_prototypes.h"
#include "cs_restart.h"
#include "cs_rotation.h"
#include "cs_time_step.h"
#include "cs_selector.h"
#include "cs_rad_transfer.h"

#include "cs_post.h"

/*----------------------------------------------------------------------------
 *  Header for the current file
 *----------------------------------------------------------------------------*/

#include "cs_prototypes.h"

/*----------------------------------------------------------------------------*/

BEGIN_C_DECLS

/*=============================================================================
 * Additional Doxygen documentation
 *============================================================================*/

/*! \file cs_user_radiative_transfer.c
 *
 * \brief User subroutine for input of radiative transfer parameters : absorption
 *  coefficient and net radiation flux.
 *
 *  See \subpage cs_user_radiative_transfer for examples.
 */

/*! \cond DOXYGEN_SHOULD_SKIP_THIS */

/*! (DOXYGEN_SHOULD_SKIP_THIS) \endcond */

/*=============================================================================
 * Public function definitions
 *============================================================================*/

/*----------------------------------------------------------------------------*/
/*!
 * \brief User function for input of radiative transfer module options.
 */
/*----------------------------------------------------------------------------*/

void
cs_user_radiative_transfer_parameters(void)
{
}

/*-------------------------------------------------------------------------------*/
/*!
 * \brief Absorption coefficient for radiative module
 *
 * It is necessary to define the value of the fluid's absorption coefficient Ck.
 *
 * This value is defined automatically for specific physical models, such
 * as gas and coal combustion, so this function should not be used with
 * these models.
 *
 * For a transparent medium, the coefficient should be set to 0.
 *
 * In the case of the P-1 model, we check that the optical length is at
 * least of the order of 1.
 *
 * \param[in]     bc_type       boundary face types
 * \param[in]     izfrdp        zone number for boundary faces
 * \param[in]     dt            time step (per cell)
 * \param[out]    ck            medium's absorption coefficient
 *                              (zero if transparent)
 */
/*-------------------------------------------------------------------------------*/

void
cs_user_rad_transfer_absorption(const int         bc_type[],
                                const int         izfrdp[],
                                const cs_real_t   dt[],
                                cs_real_t         ck[])
{

}

/*-------------------------------------------------------------------------------*/
/*!
 * \brief Compute the net radiation flux.
 *
 * The density of net radiation flux must be calculated
 * consistently with the boundary conditions of the intensity.
 * The density of net flux is the balance between the radiative
 * emiting part of a boudary face (and not the reflecting one)
 * and the radiative absorbing part.
 *
 * \param[in]   bc_type   boundary face types
 * \param[in]   izfrdp    boundary faces -> zone number
 * \param[in]   dt        time step (per cell)
 * \param[in]   coefap    boundary condition work array for the luminance
 *                         (explicit part)
 * \param[in]   coefbp    boundary condition work array for the luminance
 *                         (implicit part)
 * \param[in]   cofafp    boundary condition work array for the diffusion
 *                        of the luminance (explicit part)
 * \param[in]   cofbfp    boundary condition work array for the diffusion
 *                        of the luminance (implicit part)
 * \param[in]   twall     inside current wall temperature (K)
 * \param[in]   qincid    radiative incident flux  (W/m2)
 * \param[in]   xlamp     conductivity (W/m/K)
 * \param[in]   epap      thickness (m)
 * \param[in]   epsp      emissivity (>0)
 * \param[in]   ck        absorption coefficient
 * \param[out]  net_flux  net flux (W/m2)
 */
/*-------------------------------------------------------------------------------*/

void
cs_user_rad_transfer_net_flux(const int        itypfb[],
                              const int        izfrdp[],
                              const cs_real_t  dt[],
                              const cs_real_t  coefap[],
                              const cs_real_t  coefbp[],
                              const cs_real_t  cofafp[],
                              const cs_real_t  cofbfp[],
                              const cs_real_t  twall[],
                              const cs_real_t  qincid[],
                              const cs_real_t  xlam[],
                              const cs_real_t  epa[],
                              const cs_real_t  eps[],
                              const cs_real_t  ck[],
                              cs_real_t        net_flux[])
{

}

/*----------------------------------------------------------------------------*/

END_C_DECLS