Sortie_libre_Text_H_ext.h

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#ifndef Sortie_libre_Text_H_ext_included
#define Sortie_libre_Text_H_ext_included
 
#include <TRUST_Ref.h>
#include <Neumann.h>
 
/*! @brief Neumann_sortie_libre This class represents an open boundary without imposed velocity.
 *
 *     For Navier-Stokes equations, pressure must be imposed on such a boundary.
 *     To handle the hydraulics, the class Sortie_libre_pression_imposee is derived from Neumann_sortie_libre.
 *     Boundary conditions of type Neumann_sortie_libre or derived types result in zero diffusive fluxes.
 *     However, the treatment of convective fluxes requires knowing the convected field outside the boundary in case of fluid re-entry.
 *     This is why the class carries an OWN_PTR(Champ_front_base) (member le_champ_ext).
 *     In the computation operators, boundary conditions of type Neumann_sortie_libre and derived types will be treated identically.
 *
 * @sa Neumann
 */
class Sortie_libre_Text_H_ext: public Neumann
{
  Declare_instanciable(Sortie_libre_Text_H_ext);
public:
  virtual double val_ext(int i) const;
  virtual double val_ext(int i, int j) const;
  inline void bascule_cond_lim_en_enthalpie() { type_cond_lim = 1; }
  inline void bascule_cond_lim_en_temperature() { type_cond_lim = 0; }
  double flux_impose(int i) const override;
  double flux_impose(int i, int j) const override;
 
protected:
  OWN_PTR(Champ_front_base) le_champ_Text, le_champ_hext;
  int type_cond_lim = -1;
};
 
#endif