Op_Conv_Coloc_Vect_base.cpp

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#include <Op_Conv_Coloc_Vect_base.h>
#include <Conservation_Euler_base.h>
#include <Milieu_composite_Euler.h>
#include <Sortie_supersonique.h>
#include <Entree_supersonique.h>
#include <Champ_Inc_P0_base.h>
#include <Domaine_Cl_Coloc.h>
#include <Fluide_reel_base.h>
#include <Momentum_Euler.h>
#include <Domaine_Coloc.h>
#include <Pb_Euler.h>
#include <array>
 
Implemente_base(Op_Conv_Coloc_Vect_base,"Op_Conv_Coloc_Vect_base",Op_Conv_Coloc_base);
 
Sortie& Op_Conv_Coloc_Vect_base::printOn(Sortie& os) const { return Operateur_Conv_base::printOn(os); }
Entree& Op_Conv_Coloc_Vect_base::readOn(Entree& is) { Operateur_Conv_base::readOn(is);  return is; }
 
void Op_Conv_Coloc_Vect_base::Riemann_solver(DoubleTab& num_flux) const
{
  const Domaine_Coloc& domaine = ref_cast(Domaine_Coloc, le_dom_coloc_.valeur());
  const IntTab& f_e = domaine.face_voisins();
  const IntTab& fcl = ref_cast(Champ_Inc_P0_base, equation().inconnue()).fcl();
  const Conds_lim& cls = le_dcl_coloc_->les_conditions_limites();
  const Momentum_Euler& eq = ref_cast(Momentum_Euler, equation());
  const DoubleTab& vit_n = eq.vitesse_normale();
  const DoubleTab& vit = eq.vitesse().valeurs();
  const DoubleTab& p = eq.pression().valeurs();
  const Pb_Euler& pb = ref_cast(Pb_Euler, equation().probleme());
  const DoubleTab& rho = pb.equation_masse().densite().valeurs();
  const DoubleTab& alpha = pb.equation_fraction().inconnue().valeurs();
  const DoubleTab& alpha_rhoU = eq.inconnue().valeurs();
  const int nb_phase = pb.nb_phases();
  const int nb_faces = domaine.nb_faces();
 
  // compute left/right fluxes on internal faces
  DoubleTrav flux_l(nb_faces, num_flux.line_size()), flux_r(nb_faces, num_flux.line_size());
  assert(flux_l.line_size() == alpha_rhoU.line_size());
  assert(flux_r.line_size() == alpha_rhoU.line_size());
  assert(Objet_U::dimension == 2);
 
  for (int f = 0; f < nb_faces; f++)
    if (fcl(f, 0) == 0)
      {
        const int el = f_e(f, 0), er = f_e(f, 1);
        const double nx = domaine.face_normales(f, 0) / domaine.face_surfaces(f);
        const double ny = domaine.face_normales(f, 1) / domaine.face_surfaces(f);
 
        for (int n = 0; n < nb_phase; n++)
          {
            // left
            double alpha_p = alpha(el, n) * p(el, n);
            flux_l(f, n) = nx * alpha_p + alpha_rhoU(el, n) * vit_n(f, n);
            flux_l(f, n + nb_phase) = ny * alpha_p + alpha_rhoU(el, n + nb_phase) * vit_n(f, n);
 
            // right
            alpha_p = alpha(er, n) * p(er, n);
            flux_r(f, n) = nx * alpha_p + alpha_rhoU(er, n) * vit_n(f, n + nb_phase);
            flux_r(f, n + nb_phase) = ny * alpha_p + alpha_rhoU(er, n + nb_phase) * vit_n(f, n + nb_phase);
          }
      }
 
  // fill num_fluxe on internal faces
  scheme(num_flux, flux_l, flux_r);
 
  // Boundary faces treatement
  flux_bords_.resize(domaine.nb_faces_bord(), num_flux.line_size());
  flux_bords_ = 0.;
 
  for (int f = 0; f < nb_faces; f++)
    if (fcl(f, 0) != 0)
      {
        //lookup arrays for boundary conditions: fcl(f, .) = { BC type, BC index, face index within BC }
        //BC types: 0 -> no BC
        //          1 -> Neumann
        //          2 -> Navier or symmetry
        //          3 -> Dirichlet or Neumann_homogene
        //          4 -> Dirichlet_homogene
        //          5 -> Periodique
 
        assert (f_e(f, 1) < 0 && f_e(f, 0) >= 0 && vit_n(f, 0) != -123.123);
        const int e = f_e(f, 0);
 
        std::array<double, 3> normal { 0., 0., 0. };
        for (int d = 0; d < Objet_U::dimension; d++)
          normal[d] = domaine.face_normales(f, d) / domaine.face_surfaces(f);
 
        if (sub_type(Sortie_supersonique, cls[fcl(f, 1)].valeur())) // 1 -> Neumann
          {
            for (int n = 0; n < nb_phase; n++)
              {
                const double p_bord = p(e, n);
                const double rho_bord = rho(e, n);
                const double alpha_bord = alpha(e, n);
 
                for (int d = 0; d < Objet_U::dimension; d++)
                  {
                    num_flux(f, n + nb_phase * d) = normal[d] * p_bord + vit(e, n + nb_phase * d) * rho_bord * vit_n(f, n);
                    num_flux(f, n + nb_phase * d) *= alpha_bord;
                    flux_bords_(f, n + nb_phase * d) = num_flux(f, n + nb_phase * d) * domaine.face_surfaces(f);
                  }
              }
          }
        else if (sub_type(Entree_fluide_vitesse_imposee, cls[fcl(f, 1)].valeur())) // 3 -> Dirichlet
          {
            const Conds_lim& cls_alpha = pb.equation_fraction().domaine_Cl_dis().les_conditions_limites();
            const Conds_lim& cls_rho = pb.equation_masse().domaine_Cl_dis().les_conditions_limites();
            const Conds_lim& cls_p = pb.equation_energie().domaine_Cl_dis().les_conditions_limites();
 
            for (int n = 0; n < nb_phase; n++)
              {
                std::array<double, 3> vitesse_bord { 0., 0., 0. };
                double vitesse_normale_bord = 0;
 
                const double rho_bord = ref_cast(Dirichlet, cls_rho[fcl(f, 1)].valeur()).val_imp(fcl(f, 2), n);
                const double p_bord = ref_cast(Dirichlet, cls_p[fcl(f, 1)].valeur()).val_imp(fcl(f, 2), n);
                const double alpha_bord = ref_cast(Dirichlet, cls_alpha[fcl(f, 1)].valeur()).val_imp(fcl(f, 2), n);
 
                for (int d = 0; d < Objet_U::dimension; d++)
                  {
                    vitesse_bord[d] = ref_cast(Dirichlet, cls[fcl(f, 1)].valeur()).val_imp(fcl(f, 2), n + nb_phase * d);
                    vitesse_normale_bord += vitesse_bord[d] * normal[d];
                  }
 
                for (int d = 0; d < Objet_U::dimension; d++)
                  {
                    num_flux(f, n + nb_phase * d) = normal[d] * p_bord + vitesse_bord[d] * rho_bord * vitesse_normale_bord;
                    num_flux(f, n + nb_phase * d) *= alpha_bord;
                    flux_bords_(f, n + nb_phase * d) = num_flux(f, n + nb_phase * d) * domaine.face_surfaces(f);
                  }
              }
          }
        else if ( sub_type(Symetrie,cls[fcl(f, 1)].valeur()) && !sub_type(Sortie_supersonique, cls[fcl(f, 1)].valeur()))
          {
            //Slip wall : u_n=0
            for (int n = 0; n < nb_phase; n++)
              {
                std::array<double, 3> vitesse_bord { 0., 0., 0. };
 
                const double p_bord = p(e, n);
                const double rho_bord = rho(e, n);
                const double alpha_bord = alpha(e, n);
                double vitesse_normale_bord = 0;
 
                for (int d = 0; d < Objet_U::dimension; d++)
                  {
                    num_flux(f, n + nb_phase * d) = normal[d] * p_bord + vitesse_bord[d] * rho_bord * vitesse_normale_bord;
                    num_flux(f, n + nb_phase * d) *= alpha_bord;
                    flux_bords_(f, n + nb_phase * d) = num_flux(f, n + nb_phase * d) * domaine.face_surfaces(f);
                  }
              }
          }
        else
          {
            Cerr << " The BC of type " << fcl(f, 0) << " for the equation " << eq.que_suis_je() << " is not available .....\n";
            Process::exit();
          }
 
      }
}