Neumann.h

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#ifndef Neumann_included
#define Neumann_included
 
#include <Cond_lim_base.h>
 
/*! @brief Classe Neumann Cette classe est la classe de base de la hierarchie des conditions aux limites de type Neumann.
 *
 *     Une condition aux limites de type Neumann impose la valeur de la derivee d'un champ inconnue sur une frontiere, ce qui correspond a:
 *
 *       - flux impose pour l'equation de transport d'un scalaire
 *       - contrainte imposee pour l'equation de quantite de mouvement
 *
 * @sa Cond_lim_base Neumann_homogene
 */
class Neumann: public Cond_lim_base
{
  Declare_base(Neumann);
public:
  virtual double flux_impose(int i) const;
  virtual double flux_impose(int i, int j) const;
  const DoubleTab& flux_impose(bool nb_faces_tot=false) const;
 
protected:
  mutable DoubleTab flux_impose_; // Stocke toutes les valeurs du flux sur toutes les faces de la frontiere (pas d'hypothese sur un champ uniforme). Utile pour le GPU.
};
 
#endif