Op_Diff_VDF_Elem_base.cpp

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#include <Op_Diff_VDF_Elem_base.h>
#include <Echange_contact_VDF.h>
#include <Champ_P0_VDF.h>
#include <Matrix_tools.h>
#include <Array_tools.h>
#include <Perf_counters.h>
 
Implemente_base_sans_constructeur(Op_Diff_VDF_Elem_base,"Op_Diff_VDF_Elem_base",Op_Diff_VDF_base);
 
Sortie& Op_Diff_VDF_Elem_base::printOn(Sortie& s ) const { return s << que_suis_je() ; }
Entree& Op_Diff_VDF_Elem_base::readOn(Entree& s ) { return s ; }
 
double Op_Diff_VDF_Elem_base::calculer_dt_stab() const
{
  // Computation of the stability time step:
  //
  //  - The diffusivity is uniform, therefore:
  //
  //     dt_stab = 1/(2*diffusivite*Max(coef(elem)))
  //
  //     where:
  //           coef = 1/(dx*dx) + 1/(dy*dy) + 1/(dz*dz)
  //
  //           i ranging over all mesh elements
  //
  // Note: we do not sweep all elements since the max of coeff is reached
  //       on the element that simultaneously realizes the min of dx, dy and dz
  double dt_stab = DMAXFLOAT;
  const Domaine_VDF& domaine_VDF = iter_->domaine();
  const DoubleTab& diffu = has_champ_masse_volumique() ? diffusivite().valeurs() : diffusivite_pour_pas_de_temps().valeurs();
 
  if (sub_type(Champ_Uniforme,diffusivite_pour_pas_de_temps()) && !has_champ_masse_volumique())
    {
      double alpha = -123.;
      if (equation().diffusion_multi_scalaire())
        {
          const int nb_comp = static_cast<int>(std::sqrt(diffu.line_size()));
          std::vector<double> diff_vect(nb_comp);
 
          for (int i = 0; i < nb_comp; i++)
            for (int j = 0; j < nb_comp; j++)
              diff_vect[i] += std::abs(diffu(0, nb_comp * i + j));
 
          alpha = *std::max_element(diff_vect.begin(), diff_vect.end());
        }
      else
        {
          // GF le max permet de traiter le multi_inco
          alpha = max_array(diffu);
        }
 
      double coef = 1 / (domaine_VDF.h_x() * domaine_VDF.h_x()) + 1 / (domaine_VDF.h_y() * domaine_VDF.h_y());
 
      if (dimension == 3)
        coef += 1 / (domaine_VDF.h_z() * domaine_VDF.h_z());
 
      if (alpha == 0)
        dt_stab = DMAXFLOAT;
      else
        dt_stab = 0.5 / (alpha * coef);
 
      return Process::mp_min(dt_stab);
    }
 
  if (equation().diffusion_multi_scalaire())
    return 1e30;
 
  return Op_Diff_VDF_base::calculer_dt_stab_(domaine_VDF);
}
 
void Op_Diff_VDF_Elem_base::contribuer_termes_croises(const DoubleTab& inco, const Probleme_base& autre_pb, const DoubleTab& autre_inco, Matrice_Morse& matrice) const
{
  const Domaine_VDF& domaine = iter_->domaine();
  const IntTab& f_e = domaine.face_voisins();
  const Domaine_Cl_VDF& zcl = iter_->domaine_Cl();
  int l;
 
  // loop over boundary conditions to find a wall contact
  for (int i = 0; i < domaine.nb_front_Cl(); i++)
    {
      const Cond_lim& la_cl = zcl.les_conditions_limites(i);
      if (!la_cl->que_suis_je().debute_par("Paroi_Echange_contact")) continue; //not an Echange_contact
      const Echange_contact_VDF& cl = ref_cast(Echange_contact_VDF, la_cl.valeur());
      if (cl.nom_autre_pb() != autre_pb.le_nom()) continue; //not our problem
 
      std::map<int, std::pair<int, int>> f2e;
      const Front_VF& fvf = ref_cast(Front_VF, cl.frontiere_dis());
      for (int j = 0; j < cl.item.dimension(0); j++)
        if ((l = cl.item(j)) >= 0)
          {
            int f = fvf.num_face(j);
            int e = f_e(f, 0) == -1 ? f_e(f, 1) : f_e(f, 0);
            f2e[f] = std::make_pair(e, l);
          }
      iter_->ajouter_contribution_autre_pb(inco, matrice, la_cl, f2e);
    }
}
 
void Op_Diff_VDF_Elem_base::dimensionner_termes_croises(Matrice_Morse& matrice, const Probleme_base& autre_pb, int nl, int nc) const
{
  const Champ_P0_VDF& ch = ref_cast(Champ_P0_VDF, equation().inconnue());
  const Domaine_VDF& domaine = iter_->domaine();
  const IntTab& f_e = domaine.face_voisins();
  const Conds_lim& cls = iter_->domaine_Cl().les_conditions_limites();
  int i, j, l, f, n, N = ch.valeurs().line_size();
 
  Stencil stencil(0, 2);
 
  for (i = 0; i < cls.size(); i++)
    if (sub_type(Echange_contact_VDF, cls[i].valeur()))
      {
        const Echange_contact_VDF& cl = ref_cast(Echange_contact_VDF, cls[i].valeur());
        if (cl.nom_autre_pb() != autre_pb.le_nom()) continue; //not our problem
 
        /* stencil */
        const Front_VF& fvf = ref_cast(Front_VF, cl.frontiere_dis());
        for (j = 0; j < cl.item.dimension(0); j++)
          if ((l = cl.item(j)) >= 0)
            {
              f = fvf.num_face(j);
              int e = f_e(f, 0) == -1 ? f_e(f, 1) : f_e(f, 0);
              for (n = 0; n < N; n++) stencil.append_line(N * e + n, N * l + n);
            }
      }
 
  tableau_trier_retirer_doublons(stencil);
  Matrix_tools::allocate_morse_matrix(nl, nc, stencil, matrice);
}
 
void Op_Diff_VDF_Elem_base::dimensionner_blocs(matrices_t matrices, const tabs_t& semi_impl) const
{
  const std::string nom_inco = equation().inconnue().le_nom().getString();
  if (semi_impl.count(nom_inco)) return; //semi-implicit -> nothing to dimension
 
  if (!op_ext_init_) init_op_ext();
  int n_ext = (int)op_ext.size(); //for monolithic thermics
 
  std::vector<Matrice_Morse *> mat(n_ext);
  std::vector<int> N(n_ext); //number of components per problem in op_ext
  for (int i = 0; i < n_ext; i++)
    {
      N[i] = op_ext[i]->equation().inconnue().valeurs().line_size();
 
      std::string nom_mat = i ? nom_inco + "/" + op_ext[i]->equation().probleme().le_nom().getString() : nom_inco;
      mat[i] = matrices.count(nom_mat) ? matrices.at(nom_mat) : nullptr;
      if(!mat[i]) continue;
      Matrice_Morse mat2;
      if(i==0) Op_VDF_Elem::dimensionner(iter_->domaine(), iter_->domaine_Cl(), mat2, equation().diffusion_multi_scalaire());
      else
        {
          int nl = N[0] * iter_->domaine().nb_elem_tot();
          int nc = N[i] * op_ext[i]->equation().domaine_dis().nb_elem_tot();
          dimensionner_termes_croises(mat2, op_ext[i]->equation().probleme(),nl, nc);
        }
      mat[i]->nb_colonnes() ? *mat[i] += mat2 : *mat[i] = mat2;
    }
}
 
void Op_Diff_VDF_Elem_base::ajouter_blocs(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl) const
{
  if (!op_ext_init_) init_op_ext();
 
  // Start with the local operator; i.e. *this!
  iter_->ajouter_blocs(matrices, secmem, semi_impl);
 
  // Add extra terms if axisymmetric ...
  Op_Diff_VDF_base::ajoute_terme_pour_axi(matrices, secmem, semi_impl);
 
  // Add contribution if monolithic
  if ((int) op_ext.size() > 1) ajouter_blocs_pour_monolithique(matrices, secmem, semi_impl);
}
 
void Op_Diff_VDF_Elem_base::ajouter_blocs_pour_monolithique(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl) const
{
  const std::string& nom_inco = equation().inconnue().le_nom().getString();
  int n_ext = (int)op_ext.size() - 1; // for monolithic thermics, -1 because 1st (i.e. *this) is already handled via ajouter_blocs
  std::vector<Matrice_Morse *> mat(n_ext);
  std::vector<const DoubleTab *> inco(n_ext); //unknowns
 
  for (int i = 0; i < n_ext; i++)
    {
      std::string nom_mat = nom_inco + "/" + op_ext[i + 1]->equation().probleme().le_nom().getString();
      mat[i] = matrices.count(nom_mat) ? matrices.at(nom_mat) : nullptr;
      if(mat[i])
        {
          inco[i] = semi_impl.count(nom_mat) ? &semi_impl.at(nom_mat) : &op_ext[i + 1]->equation().inconnue().valeurs();
          contribuer_termes_croises(*inco[i], op_ext[i + 1]->equation().probleme(), op_ext[i + 1]->equation().inconnue().valeurs(), *mat[i]);
        }
    }
}