Force_Tchen_PolyMAC_MPFA.cpp

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#include <Force_Tchen_PolyMAC_MPFA.h>
#include <Champ_Face_base.h>
#include <Pb_Multiphase.h>
 
Implemente_instanciable(Force_Tchen_PolyMAC_MPFA, "Force_Tchen_Face_PolyMAC_MPFA|Tchen_force_Face_PolyMAC_MPFA", Source_Force_Tchen_base);
 
Sortie& Force_Tchen_PolyMAC_MPFA::printOn(Sortie& os) const { return os; }
Entree& Force_Tchen_PolyMAC_MPFA::readOn(Entree& is) { return Source_Force_Tchen_base::readOn(is); }
 
void Force_Tchen_PolyMAC_MPFA::dimensionner_blocs_aux(Stencil& stencil) const
{
  const Domaine_VF& domaine = ref_cast(Domaine_VF, equation().domaine_dis());
  const DoubleTab& inco = ref_cast(Champ_Face_base, equation().inconnue()).valeurs();
  int N = inco.line_size(), D = dimension, nf_tot = domaine.nb_faces_tot();
 
  /* elements */
  for (int e = 0; e < domaine.nb_elem_tot(); e++)
    for (int d = 0 ; d <D ; d++)
      for (int k = 0 ; k<N ; k++)
        if (k != n_l) //phase gazeuse
          stencil.append_line(  N *(nf_tot + D * e + d) + k  , N *(nf_tot + D * e + d) + n_l) ;
}
 
void Force_Tchen_PolyMAC_MPFA::ajouter_blocs_aux(matrices_t matrices, DoubleTab& secmem) const
{
  const Champ_Face_base& ch = ref_cast(Champ_Face_base, equation().inconnue());
  Matrice_Morse *mat = matrices.count(ch.le_nom().getString()) ? matrices.at(ch.le_nom().getString()) : nullptr;
  const Domaine_VF& domaine = ref_cast(Domaine_VF, equation().domaine_dis());
  const DoubleTab& inco = ch.valeurs(), &pvit = ch.passe(), &alpha = ref_cast(Pb_Multiphase, equation().probleme()).equation_masse().inconnue().passe(),
                   &rho   = equation().milieu().masse_volumique().passe();
 
  double pas_tps = equation().probleme().schema_temps().pas_de_temps();
  int N = inco.line_size(), D = dimension, nf_tot = domaine.nb_faces_tot();
  const DoubleVect& pe = equation().milieu().porosite_elem(), &ve = domaine.volumes();
 
  /* elements */
  for (int e = 0; e < domaine.nb_elem_tot(); e++)
    for (int d = 0 ; d <D ; d++)
      for (int k = 0 ; k<N ; k++)
        if (k != n_l) //phase gazeuse
          {
            double fac = pe(e) * ve(e) * alpha(e, k) * rho(e, n_l) ;
 
            secmem(nf_tot + D * e + d, k ) += fac * (inco(nf_tot + D * e + d, n_l)-pvit(nf_tot + D * e + d, n_l))/pas_tps;
            secmem(nf_tot + D * e + d,n_l) -= fac * (inco(nf_tot + D * e + d, n_l)-pvit(nf_tot + D * e + d, n_l))/pas_tps;
            if (mat)
              {
                (*mat)( N *(nf_tot + D * e + d) + k  , N *(nf_tot + D * e + d) + n_l) -= fac/pas_tps ;
                (*mat)( N *(nf_tot + D * e + d) + n_l, N *(nf_tot + D * e + d) + n_l) += fac/pas_tps ;
              }
          }
}