Dissipation_WIT_PolyMAC_MPFA.cpp

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#include <Dissipation_WIT_PolyMAC_MPFA.h>
 
#include <Domaine_PolyMAC_MPFA.h>
#include <Sources_helpers_Multiphase.h>
 
Implemente_instanciable(Dissipation_WIT_PolyMAC_MPFA,"Dissipation_WIT_Elem_PolyMAC_MPFA", Source_base);
 
Sortie& Dissipation_WIT_PolyMAC_MPFA::printOn(Sortie& os) const
{
  return os;
}
 
Entree& Dissipation_WIT_PolyMAC_MPFA::readOn(Entree& is)
{
  Param param(que_suis_je());
  param.ajouter("C_d_star", &C_d_star_);
  param.ajouter("constante_gravitation", &g_);
  param.ajouter("C_lambda", &C_lambda_);
  param.lire_avec_accolades_depuis(is);
 
  n_l_ = find_liquid_phase(ref_cast(Pb_Multiphase, equation().probleme()), que_suis_je());
 
  return is;
}
 
void Dissipation_WIT_PolyMAC_MPFA::dimensionner_blocs(matrices_t matrices, const tabs_t& semi_impl) const
{
// empty : no derivative to add in the blocks
}
 
void Dissipation_WIT_PolyMAC_MPFA::ajouter_blocs(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl) const
{
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, equation().domaine_dis());
  const DoubleTab& tab_rho = equation().probleme().get_champ("masse_volumique").passe();
  const DoubleTab& vit = equation().probleme().get_champ("vitesse").passe();
  const DoubleTab& diam = equation().probleme().get_champ("diametre_bulles").valeurs();
  const DoubleTab& nu = equation().probleme().get_champ("viscosite_cinematique").passe();
  const DoubleTab& k_WIT = equation().inconnue().passe();
 
  const DoubleVect& pe = equation().milieu().porosite_elem();
  const DoubleVect& ve = domaine.volumes();
  const int Nk = equation().inconnue().valeurs().dimension(1);
  const int N = ref_cast(Pb_Multiphase, equation().probleme()).nb_phases();
  const int ne = domaine.nb_elem();
  const int nf_tot = domaine.nb_faces_tot();
  const int D = dimension;
 
  if (Nk != 1)
    Process::exit("WIT is only in the liquid phase");
  if (D != 3)
    Process::exit("WIT is only coded for 3 dimensions");
 
  // Surface tension table
  const Milieu_composite& milc = ref_cast(Milieu_composite, equation().milieu());
  const DoubleTab& press = equation().probleme().get_champ("pression").passe();
  const DoubleTab& temp = equation().probleme().get_champ("temperature").passe();
  const int nb_max_sat = N * (N - 1) / 2;
  DoubleTrav Sigma_tab(ne, nb_max_sat);
  compute_sigma_table(milc, press, temp, ne, N, Sigma_tab);
 
  for(int e = 0 ; e < ne ; e++)
    for (int k = 0 ; k < N ; k++)
      if (k != n_l_)
        {
          const double u_r = relative_velocity_norm(vit, nf_tot, D, e, k, n_l_);
          const double Reb = diam(e, k) * u_r / nu(e, n_l_);
          const double Eo = g_ * std::abs(tab_rho(e, n_l_) - tab_rho(e, k)) * diam(e, k) * diam(e, k) / Sigma_tab(e, sigma_pair_index(k, n_l_, N));
          const double Cd = Tomiyama_Cd(Reb, Eo);
 
          secmem(e, 0) -= ve(e) * pe(e) * 2. * nu(e, n_l_) * Cd * Reb * k_WIT(e, 0) / (C_lambda_ * C_lambda_ * diam(e, k) * diam(e, k));
        }
}