Operateur_Grad_base.h

/****************************************************************************
* Copyright (c) 2026, CEA
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
 
#ifndef Operateur_Grad_base_included
#define Operateur_Grad_base_included
 
#include <Operateur_base.h>
 
 
 
 
/*! @brief Classe Operateur_Grad_base This class is the base of the hierarchy of operators representing
 *
 *     the computation of the gradient of a field in an equation.
 *
 * @sa Operateur_base
 */
class Operateur_Grad_base  : public Operateur_base
{
  Declare_base(Operateur_Grad_base);
public :
 
  /* for Operateur_Grad, these methods act on the pressure -> velocity matrix */
  void dimensionner(Matrice_Morse& ) const override;
  void contribuer_a_avec(const DoubleTab&, Matrice_Morse&) const override;
 
  /*
    the ajouter_blocs interface accounts for the sign of the gradient (- grad p), while ajouter() computes (grad p)
    -> the default implementation of ajouter() must be modified to account for this
  */
  DoubleTab& ajouter(const DoubleTab& inco, DoubleTab& secmem) const override;
 
  virtual DoubleVect& multvect(const DoubleTab&, DoubleTab&) const;
  virtual void calculer_flux_bords() const {};
 
protected:
  mutable SFichier Flux_grad, Flux_grad_moment, Flux_grad_sum;
};
 
#endif