Champ_front_contact_rayo_transp_VEF.cpp

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#include <Champ_front_contact_rayo_transp_VEF.h>
#include <Schema_Temps_base.h>
#include <Pb_Fluide_base.h>
#include <Champ_Inc_base.h>
#include <Pb_Conduction.h>
#include <Equation_base.h>
#include <Domaine_VEF.h>
 
Implemente_instanciable(Champ_front_contact_rayo_transp_VEF, "Champ_front_contact_rayo_transp_VEF", Champ_front_contact_VEF);
 
Sortie& Champ_front_contact_rayo_transp_VEF::printOn(Sortie& os) const { return os; }
 
Entree& Champ_front_contact_rayo_transp_VEF::readOn(Entree& is)
{
  fixer_nb_comp(1);
  return Champ_front_contact_VEF::readOn(is);
}
 
int Champ_front_contact_rayo_transp_VEF::initialiser(double temps, const Champ_Inc_base& inco)
{
  assert (!le_modele_rayo_);
 
  // retrieve the rayo model ... but we need the right problem !
  // XXX not yet entered Champ_front_contact_VEF::initialiser ... so some things must be done manually here ...
  const Probleme_base& pb1 = ref_cast(Probleme_base, Interprete::objet(nom_pb1));
  if (pb1.milieu().is_rayo_transp()) // good, we are on the fluid side !!
    {
      assert (sub_type(Pb_Fluide_base, pb1));
      le_modele_rayo_ =ref_cast(Pb_Fluide_base, pb1).get_mod_rayo_transp();
    }
  else // the other problem...
    {
      const Probleme_base& pb2 = ref_cast(Probleme_base, Interprete::objet(nom_pb2));
      if (pb2.milieu().is_rayo_transp()) // pb fluide trouve !!
        {
          assert (sub_type(Pb_Fluide_base, pb2));
          le_modele_rayo_ =ref_cast(Pb_Fluide_base, pb2).get_mod_rayo_transp();
        }
      else
        {
          Cerr << finl << "Big issue in Champ_front_contact_rayo_transp_VEF::initialiser !!!" << finl;
          Cerr << "It seems that you defined a radiation contact BC between the boundaries " << nom_bord1 << " and " << nom_bord2 << finl;
          Cerr << "of problems " << nom_pb1 << " and " << nom_pb2 << " , but neither is a fluid radiation problem !!!" << finl;
          Process::exit("Please fix your data file and use a classical paroi_contact BC for these boundaries ... \n");
        }
    }
 
  int nb_faces = frontiere_dis().frontiere().nb_faces();
  flux_radiatif_.resize(nb_faces);
  return Champ_front_contact_VEF::initialiser(temps, inco);
}
 
Champ_front_base& Champ_front_contact_rayo_transp_VEF::affecter_(const Champ_front_base& ch)
{
  return *this;
}
 
void Champ_front_contact_rayo_transp_VEF::mettre_a_jour_flux_radiatif()
{
  if (is_conduction)   // The model is known by the other problem
    {
      // Computation of the radiative flux on the boundary of the other problem
      DoubleTab flux_radiatif_autre_pb;
      int nb_faces = fr_vf_autre_pb->frontiere().nb_faces();
      int ndeb = fr_vf_autre_pb->frontiere().num_premiere_face();
      flux_radiatif_autre_pb.resize(nb_faces);
      for (int fac_front = 0; fac_front < nb_faces; fac_front++)
        flux_radiatif_autre_pb(fac_front) = le_modele_rayo_->flux_radiatif(fac_front + ndeb);
      // Fetch it from the other problem
      trace_face_raccord(fr_vf_autre_pb.valeur(), flux_radiatif_autre_pb, flux_radiatif_);
    }
  else
    {
      int nb_faces = frontiere_dis().frontiere().nb_faces();
      int ndeb = frontiere_dis().frontiere().num_premiere_face();
      flux_radiatif_.resize(nb_faces);
      for (int fac_front = 0; fac_front < nb_faces; fac_front++)
        flux_radiatif_(fac_front) = le_modele_rayo_->flux_radiatif(fac_front + ndeb);
    }
}
 
void Champ_front_contact_rayo_transp_VEF::mettre_a_jour(double temps)
{
  Champ_front_contact_VEF::mettre_a_jour(temps);
}
 
void Champ_front_contact_rayo_transp_VEF::calculer_coeffs_echange(double temps)
{
  Champ_front_contact_VEF::calculer_coeffs_echange(temps);
 
  // verify that the coupling is indeed radiative
  const Nom& nom_pb_rayonnant = le_modele_rayo_->nom_pb_rayonnant();
 
  // the radiating problem is neither of the 2 problems: the coupling is non-radiative
  if ((nom_pb_rayonnant != nom_pb1) && (nom_pb_rayonnant != nom_pb2))
    Process::exit("Error in Champ_front_contact_rayo_transp_VEF::calculer_coeffs_echange !! You should not be here since the problem is not a radiation problem !!!");
 
  // Computation and storage of the radiative flux
  mettre_a_jour_flux_radiatif();
  // Modify the gradients to account for the radiative flux
  DoubleVect gradient_num_transf_autre_pb(gradient_num_transf);
  modifie_gradients_pour_rayonnement(gradient_num_transf, gradient_num_transf_autre_pb);
}
 
void Champ_front_contact_rayo_transp_VEF::calculer_temperature_bord(double temps)
{
  // coding close to Champ_front_contact_VEF::mettre_a_jour
  const Frontiere& la_front = la_frontiere_dis->frontiere();
  int nb_faces = la_front.nb_faces();
 
  // Retrieve the coefficients gradient_num_transf and gradient_fro_transf from the other problem
  DoubleVect gradient_num_transf_autre_pb(nb_faces);
  DoubleVect gradient_fro_transf_autre_pb(nb_faces);
  trace_face_raccord(fr_vf_autre_pb.valeur(), ch_fr_autre_pb->get_gradient_num_transf(), gradient_num_transf_autre_pb);
  trace_face_raccord(fr_vf_autre_pb.valeur(), ch_fr_autre_pb->get_gradient_fro_transf(), gradient_fro_transf_autre_pb);
 
  // Computation and storage of the radiative flux
 
  // Retrieve the arrays used to compute omega, the damping factor
  DoubleVect coeff_amort_num_autre_pb(nb_faces);
  DoubleVect coeff_amort_denum_autre_pb(nb_faces);
  trace_face_raccord(fr_vf_autre_pb.valeur(), ch_fr_autre_pb->get_coeff_amort_num(), coeff_amort_num_autre_pb);
  trace_face_raccord(fr_vf_autre_pb.valeur(), ch_fr_autre_pb->get_coeff_amort_denum(), coeff_amort_denum_autre_pb);
 
  // Computation of the wall temperature
  DoubleTab& tab = valeurs_au_temps(temps);
  for (int fac_front = 0; fac_front < nb_faces; fac_front++)
    {
      // COMPUTATION OF THE DAMPING TERM
      Schema_Temps_base& sch = l_inconnue->equation().probleme().schema_temps();
      double dt = sch.pas_de_temps();
      double e = coeff_amort_num_autre_pb(fac_front) + coeff_amort_num(fac_front);
      double omega = dt / (dt + e / (coeff_amort_denum_autre_pb(fac_front) + coeff_amort_denum(fac_front)));
      // For now, omega is hard-coded to 1
      omega = 1;
      // END OF DAMPING TERM COMPUTATION
 
      double tab_past = tab(fac_front, 0);
 
      tab(fac_front, 0) = -(gradient_num_local(fac_front) + gradient_num_transf_autre_pb(fac_front)) / (gradient_fro_transf_autre_pb(fac_front) + gradient_fro_local(fac_front));
 
      tab(fac_front, 0) = omega * tab(fac_front, 0) + (1 - omega) * tab_past;
    }
}
 
void Champ_front_contact_rayo_transp_VEF::calcul_grads_locaux(double temps)
{
  Champ_front_contact_VEF::calcul_grads_locaux(temps);
 
  // Computation of the damping coefficients
  calcul_coeff_amort();
}
 
void Champ_front_contact_rayo_transp_VEF::modifie_gradients_pour_rayonnement(DoubleVect& tab_gradient_num_transf, DoubleVect& gradient_num_transf_autre_pb)
{
  const Frontiere& la_front = la_frontiere_dis->frontiere();
  const int nb_faces = la_front.nb_faces();
 
  if (is_conduction)
    {
      for (int fac_front = 0; fac_front < nb_faces; fac_front++)
        gradient_num_local(fac_front) = gradient_num_local(fac_front) + flux_radiatif_(fac_front);
    }
  else
    {
      for (int fac_front = 0; fac_front < nb_faces; fac_front++)
        gradient_num_transf_autre_pb(fac_front) = gradient_num_transf_autre_pb(fac_front) - flux_radiatif_(fac_front);
    }
}