Champ_Fonc_Elem_PolyMAC_MPFA_rot.cpp

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#include <Champ_Fonc_Elem_PolyMAC_MPFA_rot.h>
#include <grad_Champ_Face_PolyMAC_MPFA.h>
#include <Champ_Face_PolyMAC_MPFA.h>
#include <Navier_Stokes_std.h>
#include <Domaine_Cl_PolyMAC_family.h>
 
Implemente_instanciable(Champ_Fonc_Elem_PolyMAC_MPFA_rot, "Champ_Fonc_Elem_PolyMAC_MPFA_rot", Champ_Fonc_Elem_PolyMAC_CDO);
 
Sortie& Champ_Fonc_Elem_PolyMAC_MPFA_rot::printOn(Sortie& s) const { return s << que_suis_je() << " " << le_nom(); }
 
Entree& Champ_Fonc_Elem_PolyMAC_MPFA_rot::readOn(Entree& s) { return s; }
 
void Champ_Fonc_Elem_PolyMAC_MPFA_rot::mettre_a_jour(double tps)
{
  if (temps() != tps)
    {
      if (dimension == 2)
        me_calculer_2D();
      if (dimension == 3)
        me_calculer_3D();
    }
  Champ_Fonc_base::mettre_a_jour(tps);
}
 
void Champ_Fonc_Elem_PolyMAC_MPFA_rot::me_calculer_2D()
{
  const Champ_Face_PolyMAC_MPFA& vit = ref_cast(Champ_Face_PolyMAC_MPFA, champ_a_deriver());
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, vit.domaine_vf());
  int e, n;
  int D = dimension, N = champ_a_deriver().valeurs().line_size();
  int ne = domaine.nb_elem(), nf_tot = domaine.nb_faces_tot();
 
  const Navier_Stokes_std& eq = ref_cast(Navier_Stokes_std, vit.equation());
  DoubleTab& tab_rot = valeurs();
  const grad_Champ_Face_PolyMAC_MPFA& grad = ref_cast(grad_Champ_Face_PolyMAC_MPFA, eq.get_champ("gradient_vitesse"));
  const DoubleTab& tab_grad = grad.passe();
 
  for (n = 0; n < N; n++)
    for (e = 0; e < ne; e++)
      {
        tab_rot(e, n) = tab_grad(nf_tot + D * e + 0, 1 + n * D) - tab_grad(nf_tot + D * e + 1, 0 + n * D); // dUy/dx - dUx/dy
      }
 
  tab_rot.echange_espace_virtuel();
}
 
void Champ_Fonc_Elem_PolyMAC_MPFA_rot::me_calculer_3D()
{
  const Champ_Face_PolyMAC_MPFA& vit = ref_cast(Champ_Face_PolyMAC_MPFA, champ_a_deriver());
  const Domaine_PolyMAC_MPFA& domaine = ref_cast(Domaine_PolyMAC_MPFA, vit.domaine_vf());
  int e, n;
  int D = dimension, N = champ_a_deriver().valeurs().line_size();
  int ne = domaine.nb_elem(), nf_tot = domaine.nb_faces_tot();
 
  const Navier_Stokes_std& eq = ref_cast(Navier_Stokes_std, vit.equation());
  DoubleTab& tab_rot = valeurs();
  const grad_Champ_Face_PolyMAC_MPFA& grad = ref_cast(grad_Champ_Face_PolyMAC_MPFA, eq.get_champ("gradient_vitesse"));
  const DoubleTab& tab_grad = grad.passe();
 
  for (n = 0; n < N; n++)
    for (e = 0; e < ne; e++)
      {
        tab_rot(e, N*0 + n) = tab_grad(nf_tot + D * e + 1, 2 + n * D) - tab_grad(nf_tot + D * e + 2, 1 + n * D); // dUz/dy - dUy/dz
        tab_rot(e, N*1 + n) = tab_grad(nf_tot + D * e + 2, 0 + n * D) - tab_grad(nf_tot + D * e + 0, 2 + n * D); // dUx/dz - dUz/dx
        tab_rot(e, N*2 + n) = tab_grad(nf_tot + D * e + 0, 1 + n * D) - tab_grad(nf_tot + D * e + 1, 0 + n * D); // dUy/dx - dUx/dy
      }
 
  tab_rot.echange_espace_virtuel();
}