Solveur_Masse_Elem_proto.cpp

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#include <Solveur_Masse_Elem_proto.h>
#include <Op_Diff_negligeable.h>
#include <Domaine_Cl_dis_base.h>
#include <Champ_Inc_P0_base.h>
#include <Equation_base.h>
#include <Probleme_base.h>
#include <Neumann_paroi.h>
#include <Matrix_tools.h>
#include <Milieu_base.h>
#include <Operateur.h>
#include <Domaine_VF.h>
 
void Solveur_Masse_Elem_proto::associer_masse_proto(const Solveur_Masse_base& sm, const Domaine_VF& zvf )
{
  solv_mass_ = sm;
  le_dom_ = zvf;
}
 
void Solveur_Masse_Elem_proto::preparer_calcul_proto()
{
  solv_mass_->equation().init_champ_conserve();
}
 
DoubleTab& Solveur_Masse_Elem_proto::appliquer_impl_proto(DoubleTab& sm) const
{
  const Domaine_VF& domaine = le_dom_.valeur();
  const DoubleVect& ve = domaine.volumes(), &pe = solv_mass_->equation().milieu().porosite_elem();
  const DoubleTab& der = solv_mass_->equation().champ_conserve().derivees().at(solv_mass_->equation().inconnue().le_nom().getString());
 
  int e, ne_tot = domaine.nb_elem_tot(), n, N = sm.line_size();
  assert(sm.dimension_tot(0) >= ne_tot && N == der.line_size());
 
  /* partie elem */
  for (e = 0; e < ne_tot; e++)
    for (n = 0; n < N; n++)
      if (std::abs(der(e, n)) > 1e-10)
        sm(e, n) /= pe(e) * ve(e) * der(e, n);
      else
        sm(e, n) = 0; //cas d'une evanescence
 
  return sm;
}
 
void Solveur_Masse_Elem_proto::dimensionner_blocs_proto(matrices_t matrices, const tabs_t& semi_impl) const
{
  solv_mass_->equation().init_champ_conserve();
  /* une diagonale par derivee de champ_conserve_ presente dans matrices */
  const Domaine_VF& domaine = le_dom_.valeur();
  const Champ_Inc_base& cc = solv_mass_->equation().champ_conserve();
  int e, ne = domaine.nb_elem(), n, N = cc.valeurs().line_size();
 
  for (auto &&i_m : matrices)
    if (cc.derivees().count(i_m.first))
      {
        /* nombre de composantes de la variable : autant que le champ par defaut, mais peut etre different pour la pression */
        const DoubleTab& col = solv_mass_->equation().probleme().get_champ(i_m.first.c_str()).valeurs(); //tableau de l'inconnue par rapport a laquelle on derive
        int m, M = col.line_size();
 
        Stencil stencil(0, 2);
 
 
        for (e = 0; e < ne; e++)
          for (n = 0, m = 0; n < N; n++, m += (M > 1)) stencil.append_line(N * e + n, M * e + m);
        Matrice_Morse mat;
        Matrix_tools::allocate_morse_matrix(N *  solv_mass_->equation().inconnue().valeurs().dimension_tot(0), M * col.dimension_tot(0), stencil, mat);
        i_m.second->nb_colonnes() ? *i_m.second += mat : *i_m.second = mat;
      }
}
 
void Solveur_Masse_Elem_proto::ajouter_blocs_proto(matrices_t matrices, DoubleTab& secmem, double dt, const tabs_t& semi_impl, int resoudre_en_increments) const
{
  const Domaine_VF& domaine = le_dom_.valeur();
  const Champ_Inc_base& cc = solv_mass_->equation().champ_conserve();
  const Conds_lim& cls = solv_mass_->equation().domaine_Cl_dis().les_conditions_limites();
  const IntTab& fcl = ref_cast(Champ_Inc_P0_base, solv_mass_->equation().inconnue()).fcl(), &f_e = domaine.face_voisins();
  const DoubleTab& present = cc.valeurs(), &passe = cc.passe();
  const DoubleVect& ve = domaine.volumes(), &pe = solv_mass_->equation().milieu().porosite_elem(), &fs = domaine.face_surfaces();
  int e, f, n, N = cc.valeurs().line_size(), ne = domaine.nb_elem();
 
  /* second membre : avec ou sans resolution en increments*/
  for (e = 0; e < ne; e++)
    {
      const double fac_ale = domaine.domaine().deformable() ? domaine.domaine().old_volumes()(e) / ve(e) : 1.0;
      for (n = 0; n < N; n++)
        secmem(e, n) += pe(e) * ve(e) * (passe(e, n) * fac_ale - resoudre_en_increments * present(e, n)) / dt;
    }
 
  /* si on n'a pas d'operateur de diffusion (operateur(0) negligeable ou operateur(0) convectif pour Masse_Multiphase), alors ajout des flux aux faces de Neumann */
  if ( (sub_type(Op_Diff_negligeable, solv_mass_->equation().operateur(0).l_op_base())) || (!sub_type(Operateur_Diff_base, solv_mass_->equation().operateur(0).l_op_base())) )
    for (f = 0; f < domaine.premiere_face_int(); f++)
      if (fcl(f, 0) == 4)
        for (e = f_e(f, f_e(f, 0) == -1), n = 0; n < N; n++)
          secmem(e, n) += fs(f) * ref_cast(Neumann_paroi, cls[fcl(f, 1)].valeur()).flux_impose(fcl(f, 2), n);
 
  /* matrices */
  for (auto &&i_m : matrices)
    if (cc.derivees().count(i_m.first))
      {
        int m, M = solv_mass_->equation().probleme().get_champ(i_m.first.c_str()).valeurs().line_size();
        const DoubleTab& der = cc.derivees().at(i_m.first);
        for (e = 0; e < ne; e++)
          for (n = 0, m = 0; n < N; n++, m += (M > 1))
            (*i_m.second)(N * e + n, M * e + m) += pe(e) * ve(e) * der(e, n) / dt;
      }
}