Fluide_Quasi_Compressible.h

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#ifndef Fluide_Quasi_Compressible_included
#define Fluide_Quasi_Compressible_included
 
#include <Fluide_Dilatable_base.h>
 
/*! @brief classe Fluide_Quasi_Compressible Cette classe represente un d'un fluide quasi compressible
 *
 *     c'est a dire heritant de fluide dilatable
 *
 * @sa Milieu_base Fluide_Dilatable_base
 */
 
class Fluide_Quasi_Compressible : public Fluide_Dilatable_base
{
  Declare_instanciable(Fluide_Quasi_Compressible);
public :
  void set_param(Param& param) const override;
  void completer(const Probleme_base&) override;
  void discretiser(const Probleme_base& pb, const  Discretisation_base& dis) override;
  int lire_motcle_non_standard(const Motcle&, Entree&) override;
 
  // Methodes inlines
  inline void Resoudre_EDO_PT() override;
  inline void secmembre_divU_Z(DoubleTab& ) const override;
  inline int get_traitement_rho_gravite() const { return traitement_rho_gravite_; }
 
protected :
  int traitement_rho_gravite_ = 0; // 0 : gravite = rho*g, 1 : gravite =(rho-rho_moy)*g
  double temps_debut_prise_en_compte_drho_dt_ = -DMAXFLOAT,omega_drho_dt_ = 1.;
  mutable DoubleTab tab_W_old_;
 
private :
  public_for_cuda
  void remplir_champ_pression_tot(int n, const DoubleTab& PHydro, DoubleTab& PTot) override;
};
 
inline void Fluide_Quasi_Compressible::Resoudre_EDO_PT()
{
  Pth_n_ = Pth_;
 
  if (traitement_PTh_ != 2)
    {
      Pth_ = EDO_Pth_->resoudre(Pth_);
 
      if (Pth_<=0)
        {
          Cerr<<"Error : the pressure calculated by Resoudre_EDO_PT method is negative : "<< Pth_ << finl;
          abort();
        }
 
      EDO_Pth_->mettre_a_jour_CL(Pth_);
    }
}
 
//Calcule W=-dZ/dt, 2nd membre de l'equation div(rhoU) = W
inline void Fluide_Quasi_Compressible::secmembre_divU_Z(DoubleTab& tab_W) const
{
  double temps=ch_vitesse_->temps();
  if (temps>temps_debut_prise_en_compte_drho_dt_)
    {
      eos_tools_->secmembre_divU_Z(tab_W);
      if (tab_W_old_.size_totale() > 0) // Relaxation eventuelle:
        {
          tab_W *= omega_drho_dt_;
          tab_W.ajoute_sans_ech_esp_virt(1-omega_drho_dt_, tab_W_old_);
        }
      tab_W_old_ = tab_W;
    }
  else
    {
      if (je_suis_maitre())
        Cerr<<" The drho_dt term is not taken into account for time smaller than " <<temps_debut_prise_en_compte_drho_dt_<<finl;
      tab_W=0;
    }
}
 
#endif /* Fluide_Quasi_Compressible_included */