grad_Champ_Face_PolyMAC_MPFA.cpp

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#include <grad_Champ_Face_PolyMAC_MPFA.h>
#include <Champ_Fonc_Elem_PolyMAC_CDO.h>
#include <Frottement_impose_base.h>
#include <Champ_Face_PolyMAC_MPFA.h>
 
 
#include <Dirichlet.h>
#include <EChaine.h>
 
Implemente_instanciable(grad_Champ_Face_PolyMAC_MPFA, "grad_Champ_Face_PolyMAC_MPFA", Champ_Fonc_Face_PolyMAC_CDO);
 
Sortie& grad_Champ_Face_PolyMAC_MPFA::printOn(Sortie& s) const { return s << que_suis_je() << " " << le_nom(); }
 
Entree& grad_Champ_Face_PolyMAC_MPFA::readOn(Entree& s) { return s; }
 
int grad_Champ_Face_PolyMAC_MPFA::fixer_nb_valeurs_nodales(int n)
{
  const Champ_Fonc_base& self = ref_cast(Champ_Fonc_base, *this);
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, self.domaine_dis_base());
 
  assert(n < 0);
 
  const MD_Vector& md = domaine.mdv_ch_face;
  // Problem: nb_comp equals 2 but we only want one dimension !!!
  // HACK:
  int old_nb_compo = nb_compo_;
  nb_compo_ /= dimension;
  creer_tableau_distribue(md);
  nb_compo_ = old_nb_compo;
  return n;
}
 
void grad_Champ_Face_PolyMAC_MPFA::mettre_a_jour(double tps)
{
  if (temps() != tps)
    me_calculer(tps);
  Champ_Fonc_base::mettre_a_jour(tps);
}
 
void grad_Champ_Face_PolyMAC_MPFA::init_grad()
{
  is_init = 1;
  return;
}
 
void grad_Champ_Face_PolyMAC_MPFA::me_calculer(double tps)
{
  if (!is_init)
    init_grad();
  update_tab_grad(0); // compute the fgrad coefficients required for the field computation at faces
  calc_gradfve();
  update_ge(); // compute the field at elements from the field at faces
  valeurs().echange_espace_virtuel();
}
 
void grad_Champ_Face_PolyMAC_MPFA::update_tab_grad(int full_stencil)
{
  const IntTab& f_cl = champ_a_deriver().fcl();
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, domaine_vf());
  const Conds_lim& cls = champ_a_deriver().domaine_Cl_dis().les_conditions_limites(); // boundary conditions for the field to differentiate
 
  domaine.fgrad(champ_a_deriver().valeurs().line_size(), 0, cls, f_cl, nullptr, nullptr, 1, full_stencil, gradve_d, gradve_e, gradve_w);
}
 
void grad_Champ_Face_PolyMAC_MPFA::calc_gradfve()
{
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, domaine_vf());
  const Champ_Face_PolyMAC_MPFA& ch = ref_cast(Champ_Face_PolyMAC_MPFA, champ_a_deriver());
 
  const IntTab& fcl = champ_a_deriver().fcl();
  const Conds_lim& cls = ch.domaine_Cl_dis().les_conditions_limites(); // boundary conditions for the field to differentiate
 
  /*  const IntTab&                   fcl = fcl_g;
   const Conds_lim&                cls = cls_g;*/
  int f, n;
  int d_U; //velocity coordinate
  int D = dimension;
  int N = champ_a_deriver().valeurs().line_size(); //number of phases
  int ne_tot = domaine.nb_elem_tot(), nf_tot = domaine.nb_faces_tot(), nf = domaine.nb_faces();
 
  const DoubleTab& tab_ch = ch.passe();
  DoubleTab& val = valeurs();
 
  for (f = 0; f < nf; f++)
    {
      for (d_U = 0; d_U < D; d_U++)
        for (n = 0; n < N; n++) // velocity coordinates and phase
          {
            val(f, d_U + n * D) = 0;
            for (int j = gradve_d(f); j < gradve_d(f + 1); j++)
              {
                int e = gradve_e(j);
                int f_bord;
                if (e < ne_tot) //contribution from an element
                  {
                    double val_e = tab_ch(nf_tot + d_U + e * D, n);
                    val(f, d_U + n * D) += gradve_w(j, n) * val_e;
                  }
                else if (fcl(f_bord = e - ne_tot, 0) == 3) //contribution from a boundary: only Dirichlet contributes
                  {
                    double val_f_bord = ref_cast(Dirichlet, cls[fcl(f_bord, 1)].valeur()).val_imp(fcl(f_bord, 2), N * d_U + n);
                    val(f, d_U + n * D) += gradve_w(j, n) * val_f_bord;
                  }
              }
          }
    }
 
}
 
void grad_Champ_Face_PolyMAC_MPFA::update_ge()
{
  DoubleTab& val = valeurs();
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, domaine_vf());
  const DoubleVect& ve = domaine.volumes(), &fs = domaine.face_surfaces();
  const IntTab& e_f = domaine.elem_faces(), &f_e = domaine.face_voisins();
  const DoubleTab& xp = domaine.xp(), &xv = domaine.xv();
  int e, f, j, d, D = dimension, n, N = val.line_size(), ne_tot = domaine.nb_elem_tot(), nf_tot = domaine.nb_faces_tot();
  double fac;
 
  for (e = 0; e < ne_tot; e++)
    {
      for (d = 0; d < D; d++)
        for (n = 0; n < N; n++)
          val(nf_tot + D * e + d, n) = 0;
      for (j = 0; j < e_f.dimension(1) && (f = e_f(e, j)) >= 0; j++)
        for (fac = (e == f_e(f, 0) ? 1 : -1) * fs(f) / ve(e), d = 0; d < D; d++)
          for (n = 0; n < N; n++)
            val(nf_tot + D * e + d, n) += fac * (xv(f, d) - xp(e, d)) * val(f, n);
    }
}
 
void grad_Champ_Face_PolyMAC_MPFA::init_ge2() const
{
}
 
void grad_Champ_Face_PolyMAC_MPFA::update_ge2(DoubleTab& val, int incr) const
{
}