Schema_Cahn_Hilliard_Navier_Stokes.cpp

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#include <Schema_Cahn_Hilliard_Navier_Stokes.h>
 
// XD schema_cahn_hilliard_navier_stokes schema_cahn_hilliard schema_cahn_hilliard_navier_stokes INHERITS_BRACE
// XD_CONT Time-integration scheme coupling the semi-implicit Cahn-Hilliard step with a dedicated convection sub-scheme
// XD_CONT for the Navier-Stokes equation.
Implemente_instanciable( Schema_Cahn_Hilliard_Navier_Stokes, "Schema_Cahn_Hilliard_Navier_Stokes", Schema_Cahn_Hilliard ) ;
 
Sortie& Schema_Cahn_Hilliard_Navier_Stokes::printOn( Sortie& os ) const
{
  Schema_Cahn_Hilliard::printOn( os );
  return os;
}
 
void Schema_Cahn_Hilliard_Navier_Stokes::set_param(Param& param) const
{
  param.ajouter_non_std("Schema_convection", this);  // XD_ADD_P schema_temps_base
  // XD_CONT Time sub-scheme used to advance the Navier-Stokes convection (e.g. Runge_Kutta_ordre_3,
  // XD_CONT Schema_Euler_implicite).
  Schema_Cahn_Hilliard::set_param(param);
}
 
int Schema_Cahn_Hilliard_Navier_Stokes::lire_motcle_non_standard(const Motcle& mot, Entree& is)
{
  if (mot == "Schema_convection")
    {
      Nom type_sch;
      is >> type_sch;
      schema_convection_.typer(type_sch);
      is >> schema_convection_.valeur();
    }
  else
    return Schema_Cahn_Hilliard::lire_motcle_non_standard(mot, is);
  return 1;
}
 
void Schema_Cahn_Hilliard_Navier_Stokes::completer()
{
  Schema_Temps_base& sch = schema_convection_.valeur();
  sch.set_temps_init() = temps_init();
  sch.set_temps_max() = temps_max();
  sch.set_temps_courant() = temps_courant();
  sch.set_nb_pas_dt() = nb_pas_dt();
  sch.set_nb_pas_dt_max() = nb_pas_dt_max();
  sch.set_dt_min() = pas_temps_min();
  sch.set_dt_max() = pas_temps_max();
  sch.set_dt_sauv() = temps_sauv();
  sch.set_dt_impr() = temps_impr();
  sch.set_facsec() = facteur_securite_pas();
  sch.set_seuil_statio() = seuil_statio();
  sch.set_stationnaire_atteint() = isStationary();
  //sch.set_diffusion_implicite() = diffusion_implicite();
  //sch.set_seuil_diffusion_implicite() = seuil_diffusion_implicite();
  //sch.set_niter_max_diffusion_implicite() = niter_max_diffusion_implicite();
  sch.set_dt() = pas_de_temps();
  sch.set_mode_dt_start() = mode_dt_start();
  sch.set_indice_tps_final_atteint() = indice_tps_final_atteint();
  sch.set_indice_nb_pas_dt_max_atteint() = indice_nb_pas_dt_max_atteint();
  sch.set_lu() = lu();
  sch.schema_impr() = 0; // in such a way that schema_ does not write in dt_ev output file
  Schema_Cahn_Hilliard::completer();
}
 
void Schema_Cahn_Hilliard_Navier_Stokes::associer_pb(const Probleme_base& un_probleme)
{
  schema_convection_->associer_pb(un_probleme);
  Schema_Cahn_Hilliard::associer_pb(un_probleme);
}
 
Entree& Schema_Cahn_Hilliard_Navier_Stokes::readOn( Entree& is )
{
  Schema_Cahn_Hilliard::readOn( is );
  return is;
}
 
void Schema_Cahn_Hilliard_Navier_Stokes::initialize()
{
  schema_convection_->initialize();
  Schema_Cahn_Hilliard::initialize();
}
 
bool Schema_Cahn_Hilliard_Navier_Stokes::initTimeStep(double dt)
{
  schema_convection_->initTimeStep(dt);
  return Schema_Cahn_Hilliard::initTimeStep(dt);
 
}
 
void Schema_Cahn_Hilliard_Navier_Stokes::changer_temps_courant(const double t)
{
  schema_convection_->changer_temps_courant(t);
  Schema_Cahn_Hilliard::changer_temps_courant(t);
}
 
bool Schema_Cahn_Hilliard_Navier_Stokes::iterateTimeStep(bool& converged)
{
  Probleme_base& prob = pb_base();
  double temps = temps_courant_ + dt_;
  int nb_eqn = prob.nombre_d_equations();
  for (int i = nb_eqn - 1; i > -1; i--) // Cahn-Hilliard equation first, Navier-Stokes equation afterwards
    {
      Equation_base& eqn_i = prob.equation(i);
      if (eqn_i.equation_non_resolue())
        {
          Cout << "====================================================" << finl;
          Cout << eqn_i.que_suis_je() << " equation is not solved." << finl;
          Cout << "====================================================" << finl;
          if (eqn_i.schema_temps().nb_pas_dt() == 0)
            {
              DoubleTab inconnue_valeurs(eqn_i.inconnue().valeurs());
              eqn_i.derivee_en_temps_inco(inconnue_valeurs);
            }
        }
      else
        {
          eqn_i.domaine_Cl_dis().mettre_a_jour(temps);
          faire_un_pas_de_temps_eqn_base(eqn_i);
        }
    }
  converged = true;
  return true;
}
 
int Schema_Cahn_Hilliard_Navier_Stokes::faire_un_pas_de_temps_eqn_base(Equation_base& eqn)
{
  if (eqn.que_suis_je() == "Cahn_Hilliard_Convection")
    {
      return Schema_Cahn_Hilliard::faire_un_pas_de_temps_eqn_base(eqn);
    }
  else
    {
      eqn.milieu().mettre_a_jour(eqn.inconnue().temps());
      schema_convection_->set_dt() = pas_de_temps();
      schema_convection_->faire_un_pas_de_temps_eqn_base(eqn);
      set_stationnaire_atteint() = schema_convection_->isStationary();
      return 1;
    }
}
 
bool Schema_Cahn_Hilliard_Navier_Stokes::corriger_dt_calcule(double& dt) const
{
  bool ok = schema_convection_->corriger_dt_calcule(dt);
  ok = ok && Schema_Cahn_Hilliard::corriger_dt_calcule(dt);
  return ok;
}
 
int Schema_Cahn_Hilliard_Navier_Stokes::mettre_a_jour()
{
  schema_convection_->mettre_a_jour();
  return Schema_Cahn_Hilliard::mettre_a_jour();
}
 
int Schema_Cahn_Hilliard_Navier_Stokes::stop() const
{
  return (schema_convection_->stop() | Schema_Cahn_Hilliard::stop());
}
 
void Schema_Cahn_Hilliard_Navier_Stokes::imprimer(Sortie& os) const
{
  schema_convection_->imprimer(os);
  Schema_Cahn_Hilliard::imprimer(os);
}