Frottement_interfacial_VDF.cpp

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#include <Frottement_interfacial_base.h>
#include <Frottement_interfacial_VDF.h>
#include <Milieu_composite.h>
#include <Champ_Face_VDF.h>
#include <Pb_Multiphase.h>
 
Implemente_instanciable(Frottement_interfacial_VDF, "Frottement_interfacial_VDF_Face", Source_Frottement_interfacial_base);
 
Sortie& Frottement_interfacial_VDF::printOn(Sortie& os) const { return os; }
Entree& Frottement_interfacial_VDF::readOn(Entree& is) { return Source_Frottement_interfacial_base::readOn(is); }
 
void Frottement_interfacial_VDF::ajouter_blocs(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl) const
{
  const Pb_Multiphase& pbm = ref_cast(Pb_Multiphase, equation().probleme());
  const bool res_en_T = pbm.resolution_en_T();
  if (!res_en_T) Process::exit("Frottement_interfacial_VDF::ajouter_blocs NOT YET PORTED TO ENTHALPY EQUATION ! TODO FIXME !!");
 
  const Champ_Face_VDF& ch = ref_cast(Champ_Face_VDF, equation().inconnue());
  Matrice_Morse *mat = matrices.count(ch.le_nom().getString()) ? matrices.at(ch.le_nom().getString()) : nullptr;
  const Domaine_VDF& domaine = ref_cast(Domaine_VDF, equation().domaine_dis());
  const IntTab& f_e = domaine.face_voisins(), &fcl = ch.fcl();
  const DoubleVect& pf = equation().milieu().porosite_face(), &vf = domaine.volumes_entrelaces(),
                    &dh_e = equation().milieu().diametre_hydraulique_elem();
  const DoubleTab& inco = ch.valeurs(), &pvit = ch.passe(), &vfd = domaine.volumes_entrelaces_dir(),
                   &alpha = pbm.equation_masse().inconnue().passe(),
                    &press = ref_cast(QDM_Multiphase, equation()).pression().passe(),
                     &temp = pbm.equation_energie().inconnue().passe(),
                      &rho = equation().milieu().masse_volumique().passe(),
                       &mu = ref_cast(Fluide_base, equation().milieu()).viscosite_dynamique().passe();
 
  const Milieu_composite& milc = ref_cast(Milieu_composite, equation().milieu());
 
  DoubleTab const *d_bulles = (equation().probleme().has_champ("diametre_bulles")) ? &equation().probleme().get_champ("diametre_bulles").valeurs() : nullptr;
 
  int e, f, c, i, j, k, l, n, N = inco.line_size(), Np = press.line_size(), cR = (rho.dimension_tot(0) == 1), cM = (mu.dimension_tot(0) == 1);
  DoubleTrav a_l(N), p_l(N), T_l(N), rho_l(N), mu_l(N), sigma_l(N*(N-1)/2), dv(N, N), ddv(N, N, 4), d_bulles_l(N), coeff(N, N, 2); //arguments for coeff
  double ddv_c[4] = {0., 0., 0., 0. };
  double dh;
  const Frottement_interfacial_base& correlation_fi = ref_cast(Frottement_interfacial_base, correlation_.valeur());
 
  DoubleTab pvit_elem(0, N * dimension);
  domaine.domaine().creer_tableau_elements(pvit_elem);
  ch.get_elem_vector_field(pvit_elem, true);
 
  // For the span methods of the Saturation class
  const int ne_tot = domaine.nb_elem_tot(), nb_max_sat =  N * (N-1) /2; // yes!! arithmetic sequence!!
  DoubleTrav Sigma_tab(ne_tot,nb_max_sat);
 
  // fill the arrays ...
  for (k = 0; k < N; k++)
    for (l = k + 1; l < N; l++)
      {
        if (milc.has_saturation(k, l))
          {
            Saturation_base& z_sat = milc.get_saturation(k, l);
            const int ind_trav = (k*(N-1)-(k-1)*(k)/2) + (l-k-1); // Yes! upper triangular matrix!
            // retrieve sigma ...
            const DoubleTab& sig = z_sat.get_sigma_tab();
            // fill in the good case
            for (int ii = 0; ii < ne_tot; ii++) Sigma_tab(ii, ind_trav) = sig(ii);
          }
        else if (milc.has_interface(k, l))
          {
            Interface_base& sat = milc.get_interface(k,l);
            const int ind_trav = (k*(N-1)-(k-1)*(k)/2) + (l-k-1); // Yes! upper triangular matrix!
            for (i = 0 ; i<ne_tot ; i++)
              Sigma_tab(i,ind_trav) = res_en_T ? sat.sigma(temp(i,k),press(i,k * (Np > 1))) : sat.sigma_h(temp(i,k),press(i,k * (Np > 1)));
          }
      }
 
  /* faces */
  for (f = 0; f < domaine.nb_faces(); f++)
    if (fcl(f, 0) < 2)
      {
        a_l = 0, p_l = 0, T_l = 0, rho_l = 0, mu_l = 0, dh = 0, sigma_l = 0, dv = dv_min, ddv = 0, d_bulles_l = 0;
        for (c = 0; c < 2 ; c++)
          if( (e = f_e(f, c)) >= 0 )
            for (n = 0; n < N; n++)
              {
                a_l(n) += vfd(f, c) / vf(f) * alpha(e, n);
                p_l(n) += vfd(f, c) / vf(f) * press(e, n * (Np > 1));
                T_l(n) += vfd(f, c) / vf(f) * temp(e, n); // FIXME SI res_en_T
                rho_l(n) += vfd(f, c) / vf(f) * rho(!cR * e, n);
                mu_l(n) += vfd(f, c) / vf(f) * mu(!cM * e, n);
                for (k = n+1; k < N; k++)
                  if (milc.has_interface(n, k))
                    {
                      const int ind_trav = (n*(N-1)-(n-1)*(n)/2) + (k-n-1);
                      sigma_l(ind_trav) += vfd(f, c) / vf(f) * Sigma_tab(e, ind_trav);
                    }
                dh += vfd(f, c) / vf(f) * alpha(e, n) * dh_e(e);
 
                for (k = 0; k < N; k++)
                  {
                    double dv_c = ch.v_norm(pvit_elem, pvit, e, f, k, n, nullptr, &ddv_c[0]);
                    if (dv_c > dv(k, n))
                      for (dv(k, n) = dv_c, i = 0; i < 4; i++)
                        ddv(k, n, i) = ddv_c[i];
                  }
                d_bulles_l(n) += (d_bulles) ? vfd(f, c) / vf(f) * (*d_bulles)(e, n) : 0;
              }
 
        correlation_fi.coefficient(a_l, p_l, T_l, rho_l, mu_l, sigma_l, dh, dv, d_bulles_l, coeff);
        for (k = 0; k < N; k++)
          for (l = 0; l < N; l++)
            for (j = 0; j < 2; j++)
              coeff(k, l, j) *= 1 + (a_l(k) > 1e-8 ? std::pow(a_l(k) / a_res_, -exp_res) : 0) + (a_l(l) > 1e-8 ? std::pow(a_l(l) / a_res_, -exp_res) : 0);
 
        /* contributions: take the max between the two sides */
        for (k = 0; k < N; k++)
          for (l = 0; l < N; l++)
            if (k != l)
              {
                double fac = pf(f) * vf(f);
                /* attempt to implicitize coeff without slowing convergence by performing a limited expansion around pvit (in the direction of interest only) */
                secmem(f, k) -= fac * (coeff(k, l, 0) * (inco(f, k) - inco(f, l)) + coeff(k, l, 1) * ddv(k, l, 3) * (pvit(f, k) - pvit(f, l)) * ((inco(f, k) - inco(f, l)) - (pvit(f, k) - pvit(f, l))));
                if (mat)
                  for (j = 0; j < 2; j++)
                    (*mat)(N * f + k, N * f + (j ? l : k)) += fac * (j ? -1 : 1) * (coeff(k, l, 0) + coeff(k, l, 1) * ddv(k, l, 3) * (pvit(f, k) - pvit(f, l)));
              }
 
      }
}