Op_Diff_PolyMAC_CDO_base.h

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#ifndef Op_Diff_PolyMAC_CDO_base_included
#define Op_Diff_PolyMAC_CDO_base_included
 
#include <Op_Diff_PolyMAC_CDO_Gen_base.h>
#include <Op_Diff_Turbulent_base.h>
#include <Domaine_PolyMAC_CDO.h>
 
class Op_Diff_PolyMAC_CDO_base: public Op_Diff_PolyMAC_CDO_Gen_base, public Op_Diff_Turbulent_base
{
  Declare_base(Op_Diff_PolyMAC_CDO_base);
public:
  double calculer_dt_stab() const override;
 
  void completer() override;
  void mettre_a_jour(double t) override
  {
    Operateur_base::mettre_a_jour(t);
    nu_a_jour_ = 0;
  }
 
  void update_nu() const override; // met a jour nu et nu_fac
  const DoubleTab& get_nu() const { return nu_; }
  const DoubleTab& get_nu_fac() const { return nu_fac_; }
 
  inline void remplir_nu_ef(int e, DoubleTab& nu_ef) const;
 
protected:
  mutable DoubleTab nu_fac_mod; //facteur multiplicatif "utilisateur" a appliquer a nu_fac
  mutable DoubleTab nu_fac_; //conductivite aux elements, facteur multiplicatif a appliquer par face
};
 
/* diffusivite a l'interieur d'un element e : nu_ef(i, n) : diffusivite de la composante n entre le centre de l'element et celui de la face i */
inline void Op_Diff_PolyMAC_CDO_base::remplir_nu_ef(int e, DoubleTab& nu_ef) const
{
  const Domaine_PolyMAC_CDO& domaine = le_dom_poly_.valeur();
  const IntTab& e_f = domaine.elem_faces();
  const DoubleTab& xp = domaine.xp(), &xv = domaine.xv();
  int i, j, k, f, n, N = nu_ef.dimension(1), N_nu = nu_.line_size();
  double fac;
 
  for (i = 0; i < domaine.m2d(e + 1) - domaine.m2d(e); i++)
    {
      f = e_f(e, i);
      /* diffusivite de chaque composante dans la direction (xf - xe) */
      if (N_nu == N)
        for (n = 0; n < N; n++)
          nu_ef(i, n) = nu_(e, n); //isotrope
      else if (N_nu == N * dimension)
        for (n = 0; n < N; n++)
          for (j = 0, nu_ef(i, n) = 0; j < dimension; j++) //anisotrope diagonal
            nu_ef(i, n) += nu_.addr()[dimension * (N * e + n) + j] * std::pow(xv(f, j) - xp(e, j), 2);
      else if (N_nu == N * dimension * dimension)
        for (n = 0; n < N; n++)
          for (j = 0, nu_ef(i, n) = 0; j < dimension; j++)
            for (k = 0; k < dimension; k++)
              nu_ef(i, n) += nu_.addr()[dimension * (dimension * (N * e + n) + j) + k] * (xv(f, j) - xp(e, j)) * (xv(f, k) - xp(e, k)); //anisotrope complet
      else
        abort();
      for (n = 0, fac = nu_fac_.addr()[f] * (N_nu > N ? 1. / domaine.dot(&xv(f, 0), &xv(f, 0), &xp(e, 0), &xp(e, 0)) : 1); n < N; n++)
        nu_ef(i, n) *= fac;
    }
}
 
#endif /* Op_Diff_PolyMAC_CDO_base_included */