Sortie_libre_pression_moyenne_imposee.h

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#ifndef Sortie_libre_pression_moyenne_imposee_included
#define Sortie_libre_pression_moyenne_imposee_included
 
#include <Neumann_sortie_libre.h>
#include <TRUSTTabs_forward.h>
 
/*! @brief Sortie_libre_pression_moyenne_imposee This class derives from Neumann_sortie_libre.
 *
 *     It represents an open boundary with an imposed mean pressure level condition (a gradient may therefore appear).
 *     The Champ_bord object le_champ_bord contains the pressure and the function flux_impose() returns the values of this pressure.
 *     champ_ext contains a value of the fluid velocity outside, accessible via the val_ext() method.
 *
 * @sa Neumann_sortie_libre
 */
class Sortie_libre_pression_moyenne_imposee: public Neumann_sortie_libre
{
  Declare_instanciable(Sortie_libre_pression_moyenne_imposee);
public:
  void completer() override;
  void mettre_a_jour(double) override;
  double flux_impose(int i) const override;
  double flux_impose(int i, int j) const override;
 
protected:
  double d_rho, Pext_ = -100.;
  DoubleVect surfaces;
  IntTab face_voisins;
  int nb_faces_ = -1, ndeb_ = -1;
};
 
#endif