Op_Diff_P1NC_barprim.cpp

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#include <Op_Diff_P1NC_barprim.h>
#include <Schema_Temps_base.h>
 
#include <Champ_Uniforme.h>
 
#include <Champ_P1NC.h>
#include <Periodique.h>
#include <TRUSTLists.h>
#include <TRUST_Ref.h>
 
#include <TRUSTTrav.h>
#include <EFichier.h>
#include <Domaine.h>
 
Implemente_instanciable(Op_Diff_P1NC_barprim, "Op_Diff_VEFBARPRIM_P1NC", Operateur_Diff_base);
 
Sortie& Op_Diff_P1NC_barprim::printOn(Sortie& s) const { return s << que_suis_je(); }
 
Entree& Op_Diff_P1NC_barprim::readOn(Entree& s) { return s; }
 
void Op_Diff_P1NC_barprim::associer(const Domaine_dis_base& domaine_dis, const Domaine_Cl_dis_base& domaine_cl_dis, const Champ_Inc_base& ch_diffuse)
{
  le_dom_vef = ref_cast(Domaine_VEF, domaine_dis);
  la_zcl_vef = ref_cast(Domaine_Cl_VEF, domaine_cl_dis);
  if (sub_type(Champ_P1NC, ch_diffuse))
    {
      const Champ_P1NC& inco = ref_cast(Champ_P1NC, ch_diffuse);
      OBS_PTR(Champ_P1NC) inconnue;
      inconnue = inco;
    }
}
 
void Op_Diff_P1NC_barprim::associer_diffusivite(const Champ_base& diffu)
{
  diffusivite_ = ref_cast(Champ_Uniforme, diffu);
}
 
void Op_Diff_P1NC_barprim::completer()
{
  Operateur_base::completer();
}
 
const Champ_base& Op_Diff_P1NC_barprim::diffusivite() const
{
  return diffusivite_;
}
 
double Op_Diff_P1NC_barprim::calculer_dt_stab() const
{
  double dt_stab;
  const Domaine_VEF& domaine_VEF = le_dom_vef.valeur();
  double alpha = 1.e-38;
  // pas mp_max ?
  if (diffusivite_pour_pas_de_temps().valeurs().size() > 0)
    alpha = local_max_vect(diffusivite_pour_pas_de_temps().valeurs());
  dt_stab = domaine_VEF.carre_pas_du_maillage() / (2. * dimension * (alpha + DMINFLOAT));
  return dt_stab;
}
 
void Op_Diff_P1NC_barprim::calculer_divergence(const DoubleTab& grad, const DoubleVect& nu, DoubleTab& resu) const
{
  const Domaine_VEF& domaine_VEF = le_dom_vef.valeur();
  const Domaine& domaine = domaine_VEF.domaine();
  const DoubleTab& face_normales = domaine_VEF.face_normales();
  const IntTab& elem_faces = domaine_VEF.elem_faces();
  const IntTab& face_voisins = domaine_VEF.face_voisins();
  int nfe = domaine.nb_faces_elem();
  int nb_elem_tot = domaine.nb_elem_tot();
  int elem, indice, face, comp, comp2;
  //ArrOfDouble sigma(dimension);
  double normale;
  for (elem = 0; elem < nb_elem_tot; elem++)
    {
      for (indice = 0; indice < nfe; indice++)
        {
          face = elem_faces(elem, indice);
          double signe = 1;
          if (elem != face_voisins(face, 0))
            signe = -1;
          for (comp2 = 0; comp2 < dimension; comp2++)
            {
              normale = signe * face_normales(face, comp2);
              for (comp = 0; comp < dimension; comp++)
                resu(face, comp) -= nu(elem) * grad(elem, comp, comp2) * normale;
            }
        }
    }
  {
    int nb_bords = le_dom_vef->nb_front_Cl();
    for (int n_bord = 0; n_bord < nb_bords; n_bord++)
      {
        const Cond_lim& la_cl = la_zcl_vef->les_conditions_limites(n_bord);
        const Front_VF& le_bord = ref_cast(Front_VF, la_cl->frontiere_dis());
        //Cerr << "la_cl = " << la_cl.valeur() << finl;
        int num1 = le_bord.num_premiere_face();
        int num2 = num1 + le_bord.nb_faces();
        if ((la_cl->que_suis_je() == "Paroi_fixe"))
          {
            //Cerr << "Paroi_fixe" << finl;
            for (face = num1; face < num2; face++)
              {
                for (comp2 = 0; comp2 < dimension; comp2++)
                  {
                    normale = face_normales(face, comp2);
                    for (comp = 0; comp < dimension; comp++)
                      resu(face, comp) = 0.;
                  }
              }
          }
        else if (sub_type(Periodique, la_cl.valeur()))
          {
            const Periodique& la_cl_perio = ref_cast(Periodique, la_cl.valeur());
            ArrOfInt fait(le_bord.nb_faces());
            for (face = num1; face < num2; face++)
              {
                if (!fait[face - num1])
                  {
                    int face_associee = num1 + la_cl_perio.face_associee(face - num1);
                    fait[face - num1] = (fait[face_associee - num1] = 1);
                    for (comp = 0; comp < dimension; comp++)
                      resu(face_associee, comp) = (resu(face, comp) += resu(face_associee, comp));
                  }
              }
          }
      }
  }
}
 
DoubleTab& Op_Diff_P1NC_barprim::ajouter(const DoubleTab& inconnue, DoubleTab& resu) const
{
  DoubleTab tmp(resu);
  calculer(inconnue, tmp);
  resu += tmp;
  return resu;
}
 
void calculer_gradientP1NC(const DoubleTab& vitesse, const Domaine_VEF& domaine_VEF, const Domaine_Cl_VEF& domaine_Cl_VEF, DoubleTab& gradient_elem);
 
DoubleTab& Op_Diff_P1NC_barprim::calculer(const DoubleTab& inconnue, DoubleTab& resu) const
{
  int nb_elem = le_dom_vef->domaine().nb_elem_tot();
  DoubleVect nu;
  nu.resize(nb_elem);
  nu = (diffusivite().valeurs())(0, 0);
 
  resu = 0.;
 
  const Champ_P1NC& ch = ref_cast(Champ_P1NC, (equation().inconnue()));
  DoubleTab gradient_bar;
  DoubleTab ubar(ch.valeurs());
  ch.filtrer_L2(ubar);
  calculer_gradientP1NC(ubar, le_dom_vef.valeur(), la_zcl_vef.valeur(), gradient_bar);
  DoubleTab resu_bar(resu);
  calculer_divergence(gradient_bar, nu, resu_bar);
  ch.filtrer_resu(resu_bar);
  resu += resu_bar;
  resu.echange_espace_virtuel();
  modifier_flux(*this);
  return resu;
}