Variation_rho_PolyMAC_MPFA.cpp

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#include <Variation_rho_PolyMAC_MPFA.h>
#include <Domaine_PolyMAC_MPFA.h>
#include <Pb_Multiphase.h>
#include <Champ_Elem_PolyMAC_MPFA.h>
#include <Matrix_tools.h>
#include <Array_tools.h>
#include <math.h>
 
Implemente_instanciable(Variation_rho, "Variation_rho_Elem_PolyMAC_MPFA", Source_base);
 
Sortie& Variation_rho::printOn(Sortie& os) const
{
  return os;
}
 
Entree& Variation_rho::readOn(Entree& is)
{
  return is;
}
 
void Variation_rho::dimensionner_blocs(matrices_t matrices, const tabs_t& semi_impl) const
{
  const Champ_base& ch_rho = equation().milieu().masse_volumique();
  const Champ_Inc_base *pch_rho = sub_type(Champ_Inc_base, ch_rho) ? &ref_cast(Champ_Inc_base, ch_rho) : nullptr;
 
  if (!(pch_rho))
    return; // Nothing to do if the term is null
 
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, equation().domaine_dis());
  const int ne = domaine.nb_elem(), ne_tot = domaine.nb_elem_tot(), N = equation().inconnue().valeurs().line_size();
 
  for (auto &&n_m : matrices)
    if (n_m.first == "interfacial_area" || n_m.first == "temperature" || n_m.first == "pression")
      {
        Matrice_Morse& mat = *n_m.second, mat2;
        const DoubleTab& dep = equation().probleme().get_champ(n_m.first.c_str()).valeurs();
        const int nc = dep.dimension_tot(0);
        const int M  = dep.line_size();
        Stencil sten(0, 2);
        if (n_m.first == "interfacial_area" || n_m.first == "temperature") // N <= M
          for (int e = 0; e < ne; e++)
            for (int n = 0; n < N; n++)
              sten.append_line(N * e + n, M * e + n);
 
        if (n_m.first == "pression" )
          for (int e = 0; e < ne; e++)
            for (int n = 0, m = 0; n < N; n++, m+=(M>1))
              sten.append_line(N * e + n, M * e + m);
 
        Matrix_tools::allocate_morse_matrix(N * ne_tot, M * nc, sten, mat2);
        mat.nb_colonnes() ? mat += mat2 : mat = mat2;
      }
}
 
void Variation_rho::ajouter_blocs(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl) const
{
  const Champ_base& ch_rho = equation().milieu().masse_volumique();
  const Champ_Inc_base *pch_rho = sub_type(Champ_Inc_base, ch_rho) ? &ref_cast(Champ_Inc_base, ch_rho) : nullptr;
 
  if (!(pch_rho))
    return; // Nothing to do if the term is null
 
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, equation().domaine_dis());
  const DoubleVect& pe = equation().milieu().porosite_elem(), &ve = domaine.volumes();
 
  const DoubleTab& inco = equation().inconnue().valeurs();
  const DoubleTab& rho = (*pch_rho).valeurs();
  const DoubleTab& rho_p = (*pch_rho).passe();
  const DoubleTab& dP_rho = pch_rho->derivees().at("pression");
  const DoubleTab& dT_rho = pch_rho->derivees().at("temperature");
 
  const double pas_tps = equation().probleme().schema_temps().pas_de_temps();
  const int N = ref_cast(Pb_Multiphase, equation().probleme()).nb_phases();
 
  Matrice_Morse *Mp = matrices.count("pression")    ? matrices.at("pression")    : nullptr,
                 *Mt = matrices.count("temperature") ? matrices.at("temperature") : nullptr,
                  *Mai = matrices.count("interfacial_area") ? matrices.at("interfacial_area") : nullptr;
 
  /* elements */
  const int n_l = 0 ; // phase porteuse
  for (int e = 0; e < domaine.nb_elem(); e++)
    for (int k = 0; k < N; k++)
      if (k != n_l) //phase gazeuse
        {
          const double fac = 2./3.*1/pas_tps * pe(e) * ve(e) ;
          secmem(e , k) += fac * inco(e, k) * (1 - rho_p(e, k)/rho(e, k));
          if (Mp) (*Mp)(N * e + k , e) -= fac * inco(e, k) * rho_p(e, k) * -dP_rho(e, k)/(rho(e, k)*rho(e, k));
          if (Mt) (*Mt)(N * e + k , N * e + k) -= fac * inco(e, k) * rho_p(e, k) * -dT_rho(e, k)/(rho(e, k)*rho(e, k));
          if (Mai)(*Mai)(N * e + k, N * e + k) -= fac * ( 1 - rho_p(e, k)/rho(e, k));
        }
}