Pb_Multiphase.h

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#ifndef Pb_Multiphase_included
#define Pb_Multiphase_included
 
#include <Energie_Multiphase.h>
#include <Masse_Multiphase.h>
#include <Correlation_base.h>
#include <Pb_Fluide_base.h>
#include <QDM_Multiphase.h>
#include <TRUST_Deriv.h>
#include <TRUST_List.h>
#include <Interprete.h>
#include <Verif_Cl.h>
 
/*! @brief Multiphase thermohydraulics problem of type "3*N equations":
 *
 *       - QDM_Multiphase : Navier-Stokes and continuity equations for each phase
 *                          unknowns : v_k (per-phase velocities)
 *                          auxiliary fields : pressure p, void fractions a_k (sum a_k = 1)
 *       - Energie_Multiphase : energy conservation equations for each phase
 *                              unknowns : T_k (temperatures)
 *     Typical resolution scheme:
 *       1) QDM_Multiphase -> velocity prediction
 *                            mass conservation -> Newton (semi-implicit step)
 *       2) Energie_Multiphase -> implicit advection/diffusion of energy
 *
 * @sa Pb_Fluide_base QDM_Multiphase Masse_Multiphase Energie_Multiphase
 */
 
class Pb_Multiphase : public Pb_Fluide_base
{
  Declare_instanciable(Pb_Multiphase);
public:
  void typer_lire_milieu(Entree& is) override;
  int nombre_d_equations() const override;
  const Equation_base& equation(int) const override ;
  Equation_base& equation(int) override;
  void associer_milieu_base(const Milieu_base& ) override;
  Entree& lire_equations(Entree& is, Motcle& dernier_mot) override;
  int verifier() override;
  void preparer_calcul() override;
 
  /* number of phases in the problem */
  int nb_phases() const { return noms_phases_.size(); }
  const Nom& nom_phase(int i) const { return noms_phases_[i]; }
  const Noms& noms_phases() const { return noms_phases_; }
 
  double calculer_pas_de_temps() const override;
 
  virtual void typer_lire_correlation_hem() { /* Do nothing */}
 
  virtual Equation_base& equation_qdm() { return eq_qdm_; }
  virtual const Equation_base& equation_qdm() const { return eq_qdm_; }
  virtual Equation_base& equation_masse() { return eq_masse_; }
  virtual const Equation_base& equation_masse() const { return eq_masse_; }
  virtual Equation_base& equation_energie() { return eq_energie_; }
  virtual const Equation_base& equation_energie() const { return eq_energie_; }
 
  inline virtual bool resolution_en_T() const { return true; }
 
  double alpha_inf_phase(int i) const { return alpha_inf_phases_[i]; }
  void set_alpha_inf_phase(int i, double value) { alpha_inf_phases_[i] = value; }
 
protected:
  Noms noms_phases_;
  // equations
  QDM_Multiphase eq_qdm_;
  Energie_Multiphase eq_energie_;
  Masse_Multiphase eq_masse_;
  // minimum void fractions for evanescence management (zero by default)
  DoubleVect alpha_inf_phases_;
};
 
#endif /* Pb_Multiphase_included */