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/* This file is part of the OpenLB library
*
* Copyright (C) 2007 Orestis Malaspinas, Jonas Latt
* E-mail contact: info@openlb.net
* The most recent release of OpenLB can be downloaded at
* <http://www.openlb.net/>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef EXTENDED_FINITE_DIFFERENCE_BOUNDARY_3D_H
#define EXTENDED_FINITE_DIFFERENCE_BOUNDARY_3D_H
#include "core/postProcessing.h"
#include "momentaOnBoundaries.h"
#include "core/blockLattice3D.h"
#include "boundaryCondition3D.h"
namespace olb {
/**
* This class computes the finite difference approximation to LB boundary conditions
* on a plane wall in 3D with all the terms of the CE expansion.
*/
template<typename T, typename DESCRIPTOR, int direction, int orientation>
class ExtendedFdPlaneBoundaryPostProcessor3D : public LocalPostProcessor3D<T,DESCRIPTOR> {
public:
ExtendedFdPlaneBoundaryPostProcessor3D (int x0_, int x1_, int y0_, int y1_, int z0_, int z1_);
int extent() const override
{
return 1;
}
int extent(int whichDirection) const override
{
return 1;
}
void process(BlockLattice3D<T,DESCRIPTOR>& blockLattice) override;
void processSubDomain(BlockLattice3D<T,DESCRIPTOR>& blockLattice,
int x0_, int x1_, int y0_, int y1_, int z0_, int z1_) override;
private:
template<int deriveDirection>
void interpolateGradients( BlockLattice3D<T,DESCRIPTOR> const& blockLattice,
T velDeriv[DESCRIPTOR::d], int iX, int iY, int iZ ) const;
template<int deriveDirection>
void interpolateGradients ( BlockLattice3D<T,DESCRIPTOR> const& blockLattice,
T& rhoDeriv, int iX, int iY, int iZ) const;
private:
int x0, x1, y0, y1, z0, z1;
};
template<typename T, typename DESCRIPTOR, int direction, int orientation>
class ExtendedFdPlaneBoundaryProcessorGenerator3D
: public PostProcessorGenerator3D<T,DESCRIPTOR> {
public:
ExtendedFdPlaneBoundaryProcessorGenerator3D(int x0_, int x1_, int y0_, int y1_, int z0_, int z1_);
PostProcessor3D<T,DESCRIPTOR>* generate() const override;
PostProcessorGenerator3D<T,DESCRIPTOR>* clone() const override;
};
////////// Factory function for Extended Finite Difference BC ///////////////////////////////
template<typename T, typename DESCRIPTOR, typename MixinDynamics=BGKdynamics<T,DESCRIPTOR> >
OnLatticeBoundaryCondition3D<T,DESCRIPTOR>* createExtendedFdBoundaryCondition3D(BlockLatticeStructure3D<T,DESCRIPTOR>& block);
}
#endif
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