Echange_global_impose.h

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#ifndef Echange_global_impose_included
#define Echange_global_impose_included
 
#include <Echange_impose_base.h>
 
/*! @brief Classe Echange_global_impose This class represents the special case of the class
 *
 *     Echange_impose_base where the total heat exchange is computed using the
 *     global heat exchange coefficient provided by the user.
 *
 *     WARNING, in the case of discretizations where T is located at the element centre (VDF),
 *     this corresponds to modelling an exchange wall whose thickness extends to half
 *     of the first mesh cell.
 *
 *      h_t   : total exchange coefficient
 *      h_imp_: global exchange coefficient (user input)
 *     We have: h_t = h_imp
 *     The fields h_imp and T_ext are uniform
 *
 *
 * @sa Echange_impose_base Echange_externe_impose
 */
class Echange_global_impose: public Echange_impose_base
{
  Declare_instanciable(Echange_global_impose);
public:
  int compatible_avec_discr(const Discretisation_base& discr) const override { return 1; }
  void completer() override;
  void set_temps_defaut(double temps) override;
  void changer_temps_futur(double temps, int i) override;
  int avancer(double temps) override;
  int reculer(double temps) override;
  void mettre_a_jour(double temps) override;
  int initialiser(double temps) override;
 
  inline Champ_front_base& derivee_phi_ext() { return derivee_phi_ext_; }
  inline const Champ_front_base& derivee_phi_ext() const { return derivee_phi_ext_; }
  inline Champ_front_base& phi_ext() { return phi_ext_; }
  inline const Champ_front_base& phi_ext() const { return phi_ext_; }
 
  virtual double champ_exterieur(int i, int j, const Champ_front_base& champ_ext) const;
  virtual double champ_exterieur(int i, const Champ_front_base& champ_ext) const;
 
  virtual double flux_exterieur_impose(int i) const;
  virtual double flux_exterieur_impose(int i, int j) const;
 
  virtual double derivee_flux_exterieur_imposee(int i) const;
  virtual double derivee_flux_exterieur_imposee(int i, int j) const;
 
  const bool& has_phi_ext() const { return phi_ext_lu_; }
 
protected:
  bool phi_ext_lu_ = false;
  OWN_PTR(Champ_front_base) derivee_phi_ext_, phi_ext_;
};
 
#endif