Champ_Face_PolyMAC_HFV.cpp

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#include <Op_Diff_PolyMAC_HFV_base.h>
#include <Champ_Face_PolyMAC_HFV.h>
#include <Linear_algebra_tools_impl.h>
#include <Domaine_PolyMAC_HFV.h>
#include <Connectivite_som_elem.h>
#include <Champ_Fonc_reprise.h>
#include <Schema_Temps_base.h>
#include <MD_Vector_base.h>
#include <Champ_Uniforme.h>
#include <TRUSTTab_parts.h>
#include <Pb_Multiphase.h>
#include <Equation_base.h>
#include <Matrix_tools.h>
#include <Domaine_VF.h>
#include <Operateur.h>
#include <Symetrie.h>
#include <EChaine.h>
#include <Domaine.h>
#include <array>
#include <cmath>
 
Implemente_instanciable(Champ_Face_PolyMAC_HFV,"Champ_Face_PolyMAC_HFV", Champ_Face_PolyMAC_CDO) ;
 
Sortie& Champ_Face_PolyMAC_HFV::printOn(Sortie& os) const { return os << que_suis_je() << " " << le_nom(); }
 
Entree& Champ_Face_PolyMAC_HFV::readOn(Entree& is) { return is; }
 
int Champ_Face_PolyMAC_HFV::fixer_nb_valeurs_nodales(int n)
{
  // use the same kind of code as in Champ_Fonc_P0_base, but retrieve the number of faces instead of the number of elements
  // note: the code used in Champ_Fonc_P0_base::fixer_nb_valeurs_nodales() to retrieve the discrete domain is somewhat surprising...
 
  assert(n == domaine_PolyMAC_HFV().nb_faces() || n < 0); //accept both VEF and VDF conventions
 
  // Problem: nb_comp equals 2 but we only want one dimension !!!
  // HACK:
  const int old_nb_compo = nb_compo_;
  if(nb_compo_ >= dimension) nb_compo_ /= dimension;
 
  creer_tableau_distribue(domaine_PolyMAC_HFV().md_vector_faces());
  nb_compo_ = old_nb_compo;
  return n;
}
 
void Champ_Face_PolyMAC_HFV::init_auxiliary_variables()
{
  for (int n = 0; n < nb_valeurs_temporelles(); n++)
    if (futur(n).size_reelle_ok())
      {
        DoubleTab& vals = futur(n);
        vals.set_md_vector(MD_Vector()); //remove the MD_Vector...
        vals.resize_dim0(domaine_PolyMAC_HFV().mdv_faces_aretes->get_nb_items_tot()); //...resize to the correct size...
        vals.set_md_vector(domaine_PolyMAC_HFV().mdv_faces_aretes); //...and restore the correct MD_Vector
      }
}
 
int Champ_Face_PolyMAC_HFV::reprendre(Entree& fich)
{
  if (! via_ch_fonc_reprise()) return Champ_Inc_base::reprendre(fich); /* ie: resume last time ! */
 
  const Pb_Multiphase * pbm = mon_equation_non_nul() ? (sub_type(Pb_Multiphase, equation().probleme()) ? &ref_cast(Pb_Multiphase, equation().probleme()) : nullptr) : nullptr;
  if (pbm) return Champ_Inc_base::reprendre(fich);
 
  // otherwise do this ...
  init_auxiliary_variables();
  return Champ_Inc_base::reprendre(fich);
}
 
/* velocity at elements */
void Champ_Face_PolyMAC_HFV::interp_ve(const DoubleTab& inco, DoubleTab& val, bool is_vit) const
{
  const Domaine_PolyMAC_HFV& domaine = domaine_PolyMAC_HFV();
  const DoubleTab& xv = domaine.xv(), &xp = domaine.xp();
  const DoubleVect& fs = domaine.face_surfaces(), *ppf = mon_equation_non_nul() ? &equation().milieu().porosite_face() : nullptr, *ppe = ppf ? &equation().milieu().porosite_elem() : nullptr, &ve = domaine.volumes();
  const IntTab& e_f = domaine.elem_faces(), &f_e = domaine.face_voisins();
  int e, f, j, r;
 
  val = 0;
  for (e = 0; e < val.dimension(0); e++)
    for (j = 0; j < e_f.dimension(1) && (f = e_f(e, j)) >= 0; j++)
      {
        const double coef = is_vit && ppf ? (*ppf)(f) / (*ppe)(e) : 1.0;
        for (r = 0; r < dimension; r++) val(e, r) += fs(f) / ve(e) * (xv(f, r) - xp(e, r)) * (e == f_e(f, 0) ? 1 : -1) * inco(f) * coef;
      }
}
 
/* velocity at elements over a list of elements */
void Champ_Face_PolyMAC_HFV::interp_ve(const DoubleTab& inco, const IntVect& les_polys, DoubleTab& val, bool is_vit) const
{
  const Domaine_PolyMAC_HFV& domaine = domaine_PolyMAC_HFV();
  const DoubleTab& xv = domaine.xv(), &xp = domaine.xp();
  const DoubleVect& fs = domaine.face_surfaces(), *ppf = mon_equation_non_nul() ? &equation().milieu().porosite_face() : nullptr, *ppe = ppf ? &equation().milieu().porosite_elem() : nullptr, &ve = domaine.volumes();
  const IntTab& e_f = domaine.elem_faces(), &f_e = domaine.face_voisins();
  int e, f, j, d, D = dimension, n, N = inco.line_size();
  assert(ve.line_size() == N * D);
 
  for (int poly = 0; poly < les_polys.size(); poly++)
    if ((e = les_polys(poly)) != -1)
      {
        for (n = 0; n < N * D; n++) val(e, n) = 0;
        for (j = 0; j < e_f.dimension(1) && (f = e_f(e, j)) >= 0; j++)
          {
            const double coef = is_vit && ppf ? (*ppf)(f) / (*ppe)(e) : 1.0;
            for (d = 0; d < D; d++)
              for (n = 0; n < N; n++) val(e, N * d + n) += fs(f) / ve(e) * (xv(f, d) - xp(e, d)) * (e == f_e(f, 0) ? 1 : -1) * inco(f, n) * coef;
          }
      }
}
 
DoubleTab& Champ_Face_PolyMAC_HFV::valeur_aux_faces(DoubleTab& val) const
{
  const Champ_base& cha=le_champ();
  int nb_compo=cha.nb_comp(), n, N = cha.valeurs().line_size(), d, D = dimension;
 
  if (nb_compo == 1)
    Process::exit("TRUST error in Champ_Face_PolyMAC_HFV::valeur_aux_faces : A scalar field cannot be of Champ_Face type !");
 
  const Domaine_PolyMAC_HFV& domaine = domaine_PolyMAC_HFV();
  val.resize(domaine.nb_faces(), N * D);
 
  for (int f = 0; f < domaine.nb_faces(); f++)
    for (d = 0; d < D; d++)
      for (n = 0; n < N; n++) val(f, N * d + n) = cha.valeurs()(f, n) * domaine.face_normales(f, d) / domaine.face_surfaces(f);
  return val;
}
 
DoubleTab& Champ_Face_PolyMAC_HFV::trace(const Frontiere_dis_base& fr, DoubleTab& x, double t, int distant) const
{
  assert(distant == 0);
  const bool vectoriel = (le_champ().nb_comp() > 1);
  const DoubleTab& val = valeurs(t);
  int n, N = val.line_size(), d, D = dimension, dim = vectoriel ? D : 1;
  const Front_VF& fr_vf = ref_cast(Front_VF, fr);
  const IntTab& face_voisins = domaine_PolyMAC_HFV().face_voisins();
  DoubleTrav ve(0, N * D);
  if (vectoriel)
    {
      domaine_PolyMAC_HFV().domaine().creer_tableau_elements(ve);
      interp_ve(val, ve);
    }
 
  for (int i = 0; i < fr_vf.nb_faces(); i++)
    {
      const int face = fr_vf.num_premiere_face() + i;
      for (int dir = 0; dir < 2; dir++)
        {
          const int elem = face_voisins(face, dir);
          if (elem != -1)
            {
              for (d = 0; d < dim; d++)
                for (n = 0; n < N; n++) x(i, N * d + n) = vectoriel ? ve(elem, N * d + n) : val(face, n);
            }
        }
    }
 
  return x;
}
 
int Champ_Face_PolyMAC_HFV::nb_valeurs_nodales() const
{
  return domaine_PolyMAC_HFV().nb_faces(); //ignore auxiliary variables
}