Perte_Charge_Circulaire_VDF_Face.h

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#ifndef Perte_Charge_Circulaire_VDF_Face_included
#define Perte_Charge_Circulaire_VDF_Face_included
 
#include <Perte_Charge_VDF_base.h>
 
//!  Perte de charge anisotrope (selon un vecteur unitaire v et dans le plan orthogonal a ce vecteur)
/**
   Correspond a la somme d'une perte de charge d'intensite lambda dans
   la direction de v, et d'une perte de charge d'intensite
   lambda_ortho pour toute direction orthogonale a v.
 
   Ou de facon equivalente a la somme d'une perte de charge isotrope
   d'intensite lambda_ortho, et d'une perte de charge directionnelle
   de vecteur v et d'intensite lamba - lambda_ortho. C'est ainsi que
   le calcul est code.
 
   du/dt =
   - lambda_ortho(Re,x,y,z,t) * u * ||u|| / 2 Dh
   - (lambda(Re,x,y,z,t)-lambda_ortho(Re,x,y,z,t))
   * u.v * v * ||u|| / 2 Dh ||v||^2
 
   Lecture des arguments :
 
   Perte_Charge_Circulaire_VDF_Face diametre_hydraulique {
   lambda expression(Re,x,y,z,t)
   lambda_ortho expression(Re,x,y,z,t)
   diam_hydr champ_don
   direction champ_don
   [sous_domaine nom]
   }
 
*/
 
class Perte_Charge_Circulaire_VDF_Face: public Perte_Charge_VDF_base
{
  Declare_instanciable(Perte_Charge_Circulaire_VDF_Face);
public:
  void mettre_a_jour(double temps) override
  {
    diam_hydr->mettre_a_jour(temps);
    diam_hydr_ortho->mettre_a_jour(temps);
    v->mettre_a_jour(temps);
  }
 
protected:
  void set_param(Param& titi) const override;
  int lire_motcle_non_standard(const Motcle&, Entree&) override;
  //! Implemente le calcul effectif de la perte de charge pour un lieu donne
  void coeffs_perte_charge(const DoubleVect& u, const DoubleVect& pos, double t, double norme_u, double dh, double nu, double reynolds, double& coeff_ortho, double& coeff_long, double& u_l,
                           DoubleVect& v_valeur) const override;
private:
  OWN_PTR(Champ_Don_base) diam_hydr_ortho;
  mutable Parser_U lambda_ortho;
  mutable DoubleVect v_valeur;
  OWN_PTR(Champ_Don_base) v; //!< Vecteur directeur de la perte de charge.
};
 
#endif /* Perte_Charge_Circulaire_VDF_Face_included */