CSlidingInterface.hpp

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/*!
 * \file CSlidingInterface.hpp
 * \brief Declaration and inlines of the class to transfer conservative variables
 *        from a generic zone into another
 * \author G. Gori Politecnico di Milano
 * \version 8.5.0 "Harrier"
 *
 * SU2 Project Website: https://su2code.github.io
 *
 * The SU2 Project is maintained by the SU2 Foundation
 * (http://su2foundation.org)
 *
 * Copyright 2012-2026, SU2 Contributors (cf. AUTHORS.md)
 *
 * SU2 is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * SU2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with SU2. If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include "../CInterface.hpp"
 
/*!
 * \brief Fluid-fluid interface.
 * \ingroup Interfaces
 */
class CSlidingInterface : public CInterface {
public:
  /*!
   * \overload
   * \param[in] val_nVar - Number of variables that need to be transferred.
   */
  CSlidingInterface(unsigned short val_nVar, unsigned short val_nConst);
 
  /*!
   * \brief Retrieve the variable that will be sent from donor mesh to target mesh.
   * \param[in] donor_solution - Solution from the donor mesh.
   * \param[in] donor_geometry - Geometry of the donor mesh.
   * \param[in] donor_config - Definition of the problem at the donor mesh.
   * \param[in] Marker_Donor - Index of the donor marker.
   * \param[in] Vertex_Donor - Index of the donor vertex.
   * \param[in] Point_Donor - Index of the donor point.
   */
  void GetDonor_Variable(CSolver *donor_solution, CGeometry *donor_geometry, const CConfig *donor_config,
                         unsigned long Marker_Donor, unsigned long Vertex_Donor, unsigned long Point_Donor) override;
 
  /*!
  * \brief Rotate the velocity if rotating frame is applied.
   * \param[in] donor_config - Definition of the problem at the donor mesh.
   * \param[in] donor_geometry - Geometry of the donor mesh.
   * \param[in] target_config - Definition of the problem at the target mesh.
   * \param[in] target_geometry - Geometry of the target mesh.
   */
  void GetDonor_Velocity_RotatingFrame(const CConfig *donor_config, CGeometry *donor_geometry,
                                 const CConfig *target_config, CGeometry *target_geometry) override;
 
  /*!
   * \brief A virtual member, initializes the target variable for sliding mesh.
   * \param[in] target_solution - Solution from the target mesh.
   * \param[in] Marker_Target - Index of the target marker.
   * \param[in] Vertex_Target - Index of the target vertex.
   * \param[in] nDonorPoints - Number of donor points.
   */
  void InitializeTarget_Variable(CSolver *target_solution, unsigned long Marker_Target,
                                 unsigned long Vertex_Target, unsigned short nDonorPoints) override;
 
  /*!
   * \brief Recovers the target variable from the buffer of su2doubles that was broadcasted.
   * \param[in] bcastVariable - Broadcast variable.
   * \param[in] donorCoeff - value of the donor coefficient.
   */
  inline void RecoverTarget_Variable(const su2double *bcastVariable, su2double donorCoeff) override {
    for (auto iVar = 0u; iVar < nVar; iVar++) Target_Variable[iVar] = bcastVariable[iVar];
    Target_Variable[nVar] = donorCoeff;
  }
 
  /*!
   * \brief Set the variable that has been received from the target mesh into the target mesh.
   * \param[in] target_solution - Solution from the target mesh.
   * \param[in] target_geometry - Geometry of the target mesh.
   * \param[in] target_config - Definition of the problem at the target mesh.
   * \param[in] Marker_Target - Index of the target marker.
   * \param[in] Vertex_Target - Index of the target vertex.
   * \param[in] Point_Target - Index of the target point.
   */
  void SetTarget_Variable(CSolver *target_solution, CGeometry *target_geometry, const CConfig *target_config,
                          unsigned long Marker_Target, unsigned long Vertex_Target, unsigned long Point_Target) override;
 
};