QDM_Multiphase.h

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#ifndef QDM_Multiphase_included
#define QDM_Multiphase_included
 
#include <Operateur_Evanescence.h>
#include <Navier_Stokes_std.h>
#include <vector>
 
/*! @brief classe QDM_Multiphase Cette classe porte les termes de l'equation de la dynamique
 *
 *     pour un fluide sans modelisation de la turbulence.
 *     On suppose l'hypothese de fluide quasi compressible.
 *     Sous ces hypotheses, on utilise la forme suivante des equations de
 *     Navier_Stokes:
 *        DU/dt = div(terme visqueux) - gradP/rho + sources/rho
 *        div U = W
 *     avec DU/dt : derivee particulaire de la vitesse
 *          rho   : masse volumique
 *     Rq : l'implementation de la classe permet bien sur de negliger
 *          certains termes de l'equation (le terme visqueux, le terme
 *          convectif, tel ou tel terme source).
 *     L'inconnue est le champ de vitesse.
 *
 * @sa Equation_base Pb_Thermohydraulique_QC Navier_Stokes_std
 */
class QDM_Multiphase : public Navier_Stokes_std
{
  Declare_instanciable(QDM_Multiphase);
 
public :
 
  void set_param(Param& param) const override;
  int lire_motcle_non_standard(const Motcle&, Entree&) override;
  void completer() override;
  void discretiser_vitesse() override;
  void discretiser_grad_p() override;
  void mettre_a_jour(double temps) override;
  int impr(Sortie& os) const override
  {
    return Equation_base::impr(os); //idem
  }
  bool initTimeStep(double dt) override;
  void abortTimeStep() override;
 
  void dimensionner_matrice_sans_mem(Matrice_Morse& matrice) override;
 
  /*
    interface {dimensionner,assembler}_blocs
    specificites : prend en compte l'evanescence (en dernier)
  */
  int has_interface_blocs() const override;
  void dimensionner_blocs(matrices_t matrices, const tabs_t& semi_impl = {}) const override;
  const Champ_Don_base& diffusivite_pour_transport() const override;
  const Champ_base& diffusivite_pour_pas_de_temps() const override;
  const Champ_base& vitesse_pour_transport() const override;
  void assembler_blocs_avec_inertie(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl = {}) override;
  void creer_champ(const Motcle& motlu) override;
  void get_noms_champs_postraitables(Noms& nom,Option opt=NONE) const override;
 
  double alpha_res() const ;
 
protected:
  Entree& lire_cond_init(Entree&) override; //pour lire la pression
  int preparer_calcul() override; //appelle la methode de Equation_base
 
  std::vector<OWN_PTR(Champ_Inc_base)> vit_phases_; //vitesses de chaque phase
  Motcles noms_vit_phases_; //leurs noms
 
  std::vector<OWN_PTR(Champ_Fonc_base)> grad_vit_phases_; //gradient des vitesses de chaque phase
  Motcles noms_grad_vit_phases_; //leurs noms
 
  Operateur_Evanescence evanescence_;
};
 
#endif /* QDM_Multiphase_included */