Op_Evanescence_Homogene_VDF_Face.cpp

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#include <Op_Evanescence_Homogene_VDF_Face.h>
#include <Vitesse_relative_base.h>
#include <Pb_Multiphase.h>
 
Implemente_instanciable(Op_Evanescence_Homogene_VDF_Face, "Op_Evanescence_HOMOGENE_VDF_Face", Op_Evanescence_Homogene_Face_base);
 
Sortie& Op_Evanescence_Homogene_VDF_Face::printOn(Sortie& os) const { return os; }
Entree& Op_Evanescence_Homogene_VDF_Face::readOn(Entree& is) { return Op_Evanescence_Homogene_Face_base::readOn(is); }
 
void Op_Evanescence_Homogene_VDF_Face::preparer_calcul()
{
  Op_Evanescence_Homogene_Face_base::preparer_calcul();
 
  const Pb_Multiphase& pbm = ref_cast(Pb_Multiphase, equation().probleme());
  const Vitesse_relative_base* correlation_vd = pbm.has_correlation("vitesse_relative") ? &ref_cast(Vitesse_relative_base, pbm.get_correlation("vitesse_relative")) : nullptr;
 
  if (correlation_vd && correlation_vd->needs_grad_alpha())
    {
      Cerr << "Typing gradient operator useful for the correlation " << correlation_vd->que_suis_je() << finl;
      const Equation_base& eq_masse = pbm.equation_masse();
      grad_vdf_faces_.associer_eqn(eq_masse);
      grad_vdf_faces_.typer();
      grad_vdf_faces_.l_op_base().associer_eqn(eq_masse);
      const Domaine_dis_base& zdis = eq_masse.domaine_dis();
      const Domaine_Cl_dis_base& zcl = eq_masse.domaine_Cl_dis();
      const Champ_Inc_base& inco = eq_masse.inconnue();
      grad_vdf_faces_->associer(zdis, zcl, inco);
    }
}
 
void Op_Evanescence_Homogene_VDF_Face::calc_grad_alpha_faces(DoubleTab& gradAlphaFaces) const
{
  assert (grad_vdf_faces_);
 
  const Pb_Multiphase& pbm = ref_cast(Pb_Multiphase, equation().probleme());
  const DoubleTab& alpha = pbm.equation_masse().inconnue().passe();
  const Domaine_VF& domaine = ref_cast(Domaine_VF, equation().domaine_dis());
  const DoubleTab& xp = domaine.xp(), &xv = domaine.xv();
  const DoubleTab& n_f = domaine.face_normales(), &vf_dir = domaine.volumes_entrelaces_dir();
  const DoubleVect& vf = domaine.volumes_entrelaces(), &fs = domaine.face_surfaces(), &ve = domaine.volumes();
  const IntTab& f_e = domaine.face_voisins(), &e_f = domaine.elem_faces();
  const int N = alpha.line_size(), nf_tot = domaine.nb_faces_tot(), D = dimension, ne_tot = domaine.nb_elem_tot(), nf = domaine.nb_faces();
 
  /* calculaiton of the gradient of alpha at the face */
  DoubleTrav grad_f_a(nf_tot, N);
  grad_vdf_faces_->calculer(alpha, grad_f_a);
 
  DoubleTrav gradAlphaElem(ne_tot, D, N);
  /* Calcul du grad aux elems */
  for (int n = 0; n < N; n++)
    for (int e = 0; e < ne_tot; e++)
      for (int d = 0; d < D; d++)
        for (int j = 0 ; j < e_f.dimension(1); j++)
          {
            const int f = e_f(e, j);
 
            if (f < 0 ) continue;
 
            gradAlphaElem(e, d, n) += (e == f_e(f, 0) ? 1 : -1) * fs(f) * (xv(f, d) - xp(e, d)) / ve(e) * grad_f_a(f, n);
          }
 
  /* Calcul du grad vectoriel aux faces */
  double scalGradElem = 0.;
  for (int n = 0; n < N; n++)
    for (int f = 0; f < nf; f++)
      {
        for (int c = 0; c < 2; c++)
          for (int d = 0; d < D; d++)
            {
              const int e = f_e(f, c);
 
              if (e < 0) continue;
 
              gradAlphaFaces(f, d, n) += vf_dir(f, c) / vf(f) * gradAlphaElem(e, d, n);
            }
 
        scalGradElem = 0.;
        for (int d = 0; d < D; d++)
          scalGradElem += gradAlphaFaces(f, d, n) * n_f(f, d) / fs(f);
 
        for (int d = 0; d < D; d++)
          gradAlphaFaces(f, d, n) += (grad_f_a(f, n) - scalGradElem) * n_f(f, d) / fs(f);
      }
}