Eval_Diff_VDF.h

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#ifndef Eval_Diff_VDF_included
#define Eval_Diff_VDF_included
 
#include <Champ_Uniforme.h>
#include <Pb_Multiphase.h>
#include <Champ_base.h>
#include <TRUST_Ref.h>
 
class Eval_Diff_VDF
{
public:
  virtual ~Eval_Diff_VDF() { }
 
  inline const int& is_var() const { return is_var_; }
 
  inline virtual const Champ_base& diffusivite() const final { return get_diffusivite(); }
 
  inline virtual const Champ_base& get_diffusivite() const final
  {
    assert(ref_diffusivite_);
    return ref_diffusivite_.valeur();
  }
 
  inline virtual void associer_pb(const Probleme_base& pb) final
  {
    ref_probleme_ = pb;
    update_diffusivite();
  }
 
  inline virtual void update_diffusivite() final
  {
    // Pour Pb_multiphase, tab_diffusivite_ = alpha * Mu ou alpha * D
    if (sub_type(Pb_Multiphase, ref_probleme_.valeur()))
      {
        tab_alpha_.ref(ref_cast(Pb_Multiphase, ref_probleme_.valeur()).equation_masse().inconnue().passe());
        tab_diffusivite_ = tab_alpha_;
        for (int e = 0; e < tab_diffusivite_.dimension(0); e++)
          for (int n = 0; n < tab_diffusivite_.dimension(1); n++)
            tab_diffusivite_(e, n) = std::max(tab_alpha_(e, n), 1e-8) * ref_diffusivite_->valeurs()(is_var_ * e, n);
 
        tab_diffusivite_.echange_espace_virtuel();
      }
    else
      tab_diffusivite_.ref(ref_diffusivite_->valeurs());
  }
 
  inline virtual void associer(const Champ_base& diffu)
  {
    ref_diffusivite_ = diffu;
    is_var_ = sub_type(Champ_Uniforme, diffu) ? 0 : 1;
  }
 
  virtual void mettre_a_jour() // surcharger pour Multi-incos ...
  {
    ref_diffusivite_->valeurs().echange_espace_virtuel();
    update_diffusivite();
  }
 
  // Methods used by the flux computation in template class:
  inline double compute_heq_impl(double d0, int i, double d1, int j, int compo) const
  {
    return 1. / (d0 / tab_diffusivite_(is_var_ * i, compo) + d1 / tab_diffusivite_(is_var_ * j, compo));
  }
 
  inline double nu_1_impl(int i, int compo) const { return tab_diffusivite_(is_var_ * i, compo); }
  inline double nu_2_impl(int i, int compo) const { return tab_diffusivite_(is_var_ * i, compo); }
 
  inline double nu_1_impl_face(int i, int j, int compo) const
  {
    return 0.5 * (tab_diffusivite_(is_var_ * i, compo) + tab_diffusivite_(is_var_ * j, compo));
  }
 
  inline double nu_2_impl_face(int i, int j, int k, int l, int compo) const
  {
    return 0.25 * (tab_diffusivite_(is_var_ * i, compo) + tab_diffusivite_(is_var_ * j, compo) + tab_diffusivite_(is_var_ * k, compo) + tab_diffusivite_(is_var_ * l, compo));
  }
 
  inline double nu_lam_impl_face(int i, int j, int k, int l, int compo) const { return nu_2_impl_face(i, j, k, l, compo); }
  inline double nu_lam_impl_face2(int i, int j, int compo) const { return nu_1_impl_face(i, j, compo); }
 
  // These methods will be overloaded in DIFT operators (See Eval_Dift_VDF_const_Elem for example ...)
  inline int get_ind_Fluctu_Term() const { return 0; }
  inline double get_dv_mvol(const int i) const { throw; } /* seulement pour K-Eps */
  inline virtual double get_equivalent_distance(int boundary_index,int local_face) const { return 0; }
  inline double nu_t_impl(int i, int compo) const { return 0.; }
  inline double tau_tan_impl(int i, int j) const { return 0.; }
  inline bool uses_wall() const { return false; }
  inline bool uses_mod() const { return false; }
  inline const DoubleTab& get_k_elem() const { throw; } // pour F5 seulement ...
 
protected:
  int is_var_ = 0;
  OBS_PTR(Probleme_base) ref_probleme_;
  OBS_PTR(Champ_base) ref_diffusivite_;
  DoubleTab tab_diffusivite_, tab_alpha_;
};
 
#endif /* Eval_Diff_VDF_included */