Milieu_composite_Euler.cpp

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#include <Interface_Baer_Nunziato.h>
#include <Milieu_composite_Euler.h>
#include <Discretisation_base.h>
#include <Fluide_reel_base.h>
#include <Champ_Uniforme.h>
#include <Momentum_Euler.h>
#include <Pb_Euler.h>
 
Implemente_instanciable(Milieu_composite_Euler, "Milieu_composite_Euler", Milieu_composite);
// XD Milieu_composite_Euler Milieu_composite Milieu_composite_Euler INHERITS_BRACE Composite medium made of several sub
// XD_CONT mediums.
 
Sortie& Milieu_composite_Euler::printOn(Sortie& os) const { return os; }
Entree& Milieu_composite_Euler::readOn(Entree& is)
{
  Milieu_composite::readOn(is);
 
  // XXX pour le moment on force ca .. a retirer apres
  if (has_saturation_)
    Process::exit("We dont accept at present a saturation object in Milieu_composite_Euler ... But we will soon !\n");
 
  if (static_cast<int>(fluides_.size()) == 1 && inter_lu_)
    {
      Cerr << "Error while reading Milieu_composite_Euler !!" << finl;
      Cerr << "You are simulating a Single-Phase Euler problem. No need to define an interface !" << finl;
      Cerr << "Please remove the object " << inter_lu_->que_suis_je() << " from your data file !" << finl;
      Process::exit();
    }
 
  if (inter_lu_ && !sub_type(Interface_Baer_Nunziato, inter_lu_.valeur()))
    Process::exit("We dont accept at present an interface object with a type different than Interface_Baer_Nunziato !\n");
 
  return is;
}
 
void Milieu_composite_Euler::discretiser(const Probleme_base& pb, const  Discretisation_base& dis)
{
  Cerr << "Composite Euler medium discretization" << finl;
  // on discretise seulement la porosite
  Milieu_base::discretiser_porosite(pb,dis);
 
  res_en_T_ = true;
 
  if (inter_lu_)
    {
      inter_lu_->assoscier_pb(pb);
      inter_lu_->completer();
    }
}
 
void Milieu_composite_Euler::init_energie_tot(DoubleTab& alpha_energie_tot_jdd) const
{
  const Momentum_Euler& qdm = ref_cast(Momentum_Euler, equation("alpha_rho_u"));
  const DoubleTab& rho = ref_cast(Density_Euler,equation("alpha_rho")).densite().valeurs();
  const DoubleTab& alpha = equation("alpha").inconnue().valeurs();
  const DoubleTab& p = qdm.pression().valeurs();
  const int Nb_phase = static_cast<int>(fluides_.size());
  const int Nb_elem = qdm.domaine_dis().nb_elem();
 
  for (int n = 0; n < Nb_phase; n++)
    {
      const DoubleTab& vit_phase = qdm.vitesse_phase(n).valeurs();
      const Fluide_reel_base& phase = ref_cast(Fluide_reel_base, get_fluid(n));
 
      for (int i = 0; i < Nb_elem; i++)
        {
          double nom_u2 = 0;
          for (int d = 0; d < Objet_U::dimension; d++)
            nom_u2 += vit_phase(i, d) * vit_phase(i, d);
 
          alpha_energie_tot_jdd(i, n) = alpha(i, n) * phase.init_energie_tot(rho(i, n), nom_u2, p(i, n));
        }
    }
 
  alpha_energie_tot_jdd.echange_espace_virtuel();
}
 
void Milieu_composite_Euler::calculer_pression(DoubleTab& p) const
{
  const Momentum_Euler& qdm = ref_cast(Momentum_Euler, equation("alpha_rho_u"));
  const DoubleTab& rho = ref_cast(Density_Euler,equation("alpha_rho")).densite().valeurs();
  const DoubleTab& alpha = equation("alpha").inconnue().valeurs();
  const DoubleTab& alpha_rhoE = equation("alpha_energie_tot").inconnue().valeurs();
 
  DoubleTrav rhoE(alpha_rhoE);
  rhoE = alpha_rhoE; // XXX
  tab_divide_any_shape(rhoE, alpha); // @suppress("Function cannot be resolved")
 
  const int Nb_phase = static_cast<int>(fluides_.size());
  const int Nb_elem = qdm.domaine_dis().nb_elem();
 
  for (int n = 0; n < Nb_phase; n++)
    {
      const DoubleTab& vit_phase = qdm.vitesse_phase(n).valeurs();
      const Fluide_reel_base& phase = ref_cast(Fluide_reel_base, get_fluid(n));
 
      for (int e = 0; e < Nb_elem; e++)
        {
          double nom_u2 = 0;
          for (int d = 0; d < Objet_U::dimension; d++)
            nom_u2 += vit_phase(e, d) * vit_phase(e, d);
 
          p(e, n) = phase.calculer_pression(rho(e, n), nom_u2, rhoE(e, n));
          assert(p(e, n) > 0);
        }
    }
 
  p.echange_espace_virtuel();
}
 
void Milieu_composite_Euler::calculer_vitesse_son(DoubleTab& c) const
{
  const Momentum_Euler& qdm = ref_cast(Momentum_Euler, equation("alpha_rho_u"));
  const DoubleTab& rho = ref_cast(Density_Euler,equation("alpha_rho")).densite().valeurs();
  const DoubleTab& p = qdm.pression().valeurs();
 
  const int Nb_phase = static_cast<int>(fluides_.size());
  const int Nb_elem = qdm.domaine_dis().nb_elem();
  assert(c.dimension(0) == Nb_elem && c.line_size() == Nb_phase);
  assert(c.dimension_tot(0) == qdm.domaine_dis().nb_elem_tot());
 
  for (int n = 0; n < Nb_phase; n++)
    {
      const Fluide_reel_base& phase = ref_cast(Fluide_reel_base, get_fluid(n));
      for (int e = 0; e < Nb_elem; e++)
        c(e, n) = phase.calculer_vitesse_son(rho(e, n), p(e, n));
    }
 
  c.echange_espace_virtuel();
}