Champ_front_tangentiel_VEF.cpp

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#include <Champ_front_tangentiel_VEF.h>
#include <Domaine_VEF.h>
#include <TRUSTTrav.h>
Implemente_instanciable(Champ_front_tangentiel_VEF,"Champ_front_tangentiel_VEF",Champ_front_tangentiel);
// XD champ_front_tangentiel_vef front_field_base champ_front_tangentiel_vef NO_BRACE Field to define the tangential
// XD_CONT velocity vector field standard at the boundary in VEF discretization.
// XD attr mot chaine(into=["vitesse_tangentielle"]) mot REQ Name of vector field.
// XD attr vit_tan floattant vit_tan REQ Vector field standard [m/s].
 
Sortie& Champ_front_tangentiel_VEF::printOn(Sortie& os) const
{
  return Champ_front_tangentiel::printOn(os);
}
 
 
Entree& Champ_front_tangentiel_VEF::readOn(Entree& is)
{
  fixer_nb_comp(dimension);
  return Champ_front_tangentiel::readOn(is);
}
 
 
// WEC : apparently assumes dimension 3, that the surfaces are vertical
// (normal vector orthogonal to z) and that the rotation vector is along z.
 
// This field is in fact stationary => everything is done in initialiser.
 
int Champ_front_tangentiel_VEF::initialiser(double temps, const Champ_Inc_base& inco)
{
  if (!Champ_front_tangentiel::initialiser(temps,inco))
    return 0;
 
  const Domaine_VEF& domaine_VEF = ref_cast(Domaine_VEF,domaine_dis());
  const Front_VF& le_bord= ref_cast(Front_VF,frontiere_dis());
  int premiere=le_bord.num_premiere_face();
  //  int derniere=premiere+le_bord.nb_faces();
  const DoubleTab& face_normales = domaine_VEF.face_normales();
  const IntTab& face_voisins = domaine_VEF.face_voisins();
 
  int nb_cases=les_valeurs->nb_cases();
 
  // process the faces on the boundary
 
  DoubleTab vecteur_tang(le_bord.nb_faces(),3);
 
  for(int i=0; i<le_bord.nb_faces(); i++)
    {
      int elem1=face_voisins(i+premiere,0);
      if (elem1 == -1)
        elem1=face_voisins(i+premiere,1);
      int signe = domaine_VEF.oriente_normale(i+premiere,elem1);
 
      vecteur_tang(i,2) = 0.0;
 
      vecteur_tang (i,0) = -face_normales(i+premiere,1)*signe;
 
      vecteur_tang (i,1) =face_normales(i+premiere,0)*signe;
 
      double norme=0.0;
 
      for (int k=0; k<2; k++)
        norme += vecteur_tang(i,k)* vecteur_tang(i,k);
 
      norme = sqrt(norme);
 
      // Fill all time steps
      for (int t=0; t<nb_cases; t++)
        {
          DoubleTab& tab=les_valeurs[t].valeurs();
 
          tab(i,2)=0.0;
 
          // WEC : Indices were i+premiere.
          // Removed as it was clearly a bug!
          // Also changed in domaine_Cl_VEF
          for(int j=0; j<2; j++)
            {
              tab(i,j)=vecteur_tang(i,j);
              tab(i,j)*=vit_tang;
              tab(i,j)=tab(i,j)/norme;
            }
        }
    }
 
  return 1;
}