EOS_Tools_VDF.cpp

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#include <Navier_Stokes_Fluide_Dilatable_base.h>
#include <Source_Masse_Fluide_Dilatable_base.h>
#include <Fluide_Dilatable_base.h>
#include <Check_espace_virtuel.h>
#include <Schema_Temps_base.h>
#include <Champ_Face_VDF.h>
#include <communications.h>
#include <Equation_base.h>
#include <EOS_Tools_VDF.h>
#include <Domaine_VDF.h>
#include <Debog.h>
 
Implemente_instanciable(EOS_Tools_VDF,"EOS_Tools_VDF",EOS_Tools_base);
 
Sortie& EOS_Tools_VDF::printOn(Sortie& os) const
{
  return os <<que_suis_je()<< finl;
}
 
Entree& EOS_Tools_VDF::readOn(Entree& is)
{
  return is;
}
 
void  EOS_Tools_VDF::associer_domaines(const Domaine_dis_base& dds, const Domaine_Cl_dis_base& domaine_cl)
{
  le_dom = ref_cast(Domaine_VDF,dds);
  le_dom_Cl = domaine_cl;
  Champ_Face_VDF toto;
  toto.associer_domaine_dis_base(dds);
  toto.fixer_nb_comp(1);
  toto.fixer_nb_valeurs_nodales(le_dom->nb_faces());
  tab_rho_face=toto.valeurs();
  tab_rho_face_demi=toto.valeurs();
  tab_rho_face_np1=toto.valeurs();
}
 
/*! @brief @brief Computes the volumetric average of the given P0 quantity.
 *
 * @return rho discretized per face.
 */
double EOS_Tools_VDF::moyenne_vol(const DoubleTab& tab) const
{
  int nb_elem=le_dom->nb_elem();
  const DoubleVect& volumes = le_dom->volumes();
  assert(tab.dimension(0)==nb_elem);
  ArrOfDouble sum(2);
  sum = 0;
  for (int elem=0 ; elem<nb_elem ; elem++)
    {
      double v = volumes(elem);
      sum[0] += v;
      sum[1] += v*tab(elem);
    }
  mp_sum_for_each_item(sum);
  return sum[1]/sum[0];
}
 
void EOS_Tools_VDF::calculer_rho_face_np1(const DoubleTab& tab_rhoP0)
{
  int face, elem, nb_faces_tot = le_dom->nb_faces_tot();
  Debog::verifier("tab_rhoP0",tab_rhoP0);
  int i, nb_comp;
  IntTab& face_voisins = le_dom->face_voisins();
  for (face=0 ; face<nb_faces_tot ; face++)
    {
      nb_comp=0;
      tab_rho_face_np1(face) = 0;
      for (i=0 ; i<2 ; i++)
        {
          elem= face_voisins(face,i);
          if (elem!=-1)
            {
              nb_comp++;
              tab_rho_face_np1(face) += tab_rhoP0(elem);
            }
        }
      tab_rho_face_np1(face) /= nb_comp;
    }
 
  tab_rho_face_np1.echange_espace_virtuel();
  Debog::verifier("tab_rho_face_np1",tab_rho_face_np1);
  for (face=0 ; face<nb_faces_tot ; face++)
    tab_rho_face_demi(face)=(tab_rho_face_np1(face)+tab_rho_face(face))/2.;
}
 
/*! @brief @brief Returns rho with the same discretization as the velocity: one value per face in VDF.
 *
 * @return rho discretized per face.
 */
const DoubleTab& EOS_Tools_VDF::rho_discvit() const
{
  return tab_rho_face_demi;
}
 
/*! @brief @brief Returns div(u) with the same discretization as the velocity: one value per face in VDF.
 *
 * @return div(u) discretized per face.
 */
void EOS_Tools_VDF::divu_discvit(const DoubleTab& secmem1, DoubleTab& secmem2)
{
  assert_espace_virtuel_vect(secmem1);
  int nb_faces_tot = le_dom->nb_faces_tot();
  IntTab& face_voisins = le_dom->face_voisins();
  //filling div(u) on the faces
  for (int face=0 ; face<nb_faces_tot; face++)
    {
      int nb_comp=0;
      secmem2(face)=0;
      for (int i=0 ; i<2 ; i++)
        {
          int elem= face_voisins(face,i);
          if (elem!=-1)
            {
              nb_comp++;
              secmem2(face) += secmem1(elem);
            }
        }
      secmem2(face) /= nb_comp;
    }
  secmem2.echange_espace_virtuel();
}
 
/*! @brief @brief Computes the right-hand side of the continuity equation: div(rhoU) = W = -dZ/dT with Z=rho.
 *
 * @return rho discretized per face.
 */
void EOS_Tools_VDF::secmembre_divU_Z(DoubleTab& tab_W) const
{
  double dt = le_fluide().vitesse().equation().schema_temps().pas_de_temps();
  int elem,nb_elem = le_dom->nb_elem();//,nb_faces = le_dom->nb_faces();
  DoubleVect tab_dZ(nb_elem);
  //DoubleTab tab_gradZ(nb_faces);
  const DoubleTab& tab_rhonP0 = le_fluide().loi_etat()->rho_n();
  const DoubleTab& tab_rhonp1P0 = le_fluide().loi_etat()->rho_np1();
  Debog::verifier("divU tab_rhonP0",tab_rhonP0);
  Debog::verifier("divU tab_rhonp1P0",tab_rhonp1P0);
  const DoubleVect& volumes = le_dom->volumes();
 
  for (elem=0 ; elem<nb_elem ; elem++)
    tab_dZ(elem) = (tab_rhonp1P0(elem)-tab_rhonP0(elem))/dt;
 
  // Adding special source terms from the mass equation:
  const bool has_mass_flux = (sub_type(Navier_Stokes_Fluide_Dilatable_base, le_fluide().vitesse().equation())) ?
                             ref_cast(Navier_Stokes_Fluide_Dilatable_base, le_fluide().vitesse().equation()).has_source_masse() : false;
 
  if (has_mass_flux)
    {
      const Source_Masse_Fluide_Dilatable_base& src_mass = ref_cast(Navier_Stokes_Fluide_Dilatable_base, le_fluide().vitesse().equation()).source_masse();
      src_mass.ajouter_projection(le_fluide(), static_cast<DoubleTab&>(tab_dZ));
    }
 
  for (elem = 0; elem < nb_elem; elem++)
    tab_W(elem) = -tab_dZ(elem) * volumes(elem);
}
 
void EOS_Tools_VDF::mettre_a_jour(double temps)
{
  int n=tab_rho_face_np1.size_totale();
  for (int i=0; i<n; i++)
    {
      tab_rho_face(i)=tab_rho_face_np1(i);
      tab_rho_face_demi(i)=tab_rho_face_np1(i);
    }
}