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/* This file is part of the OpenLB library
*
* Copyright (C) 2018 Marc Haussmann
* 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 WALLFUNCTION_BOUNDARY_POST_PROCESSORS_3D_H
#define WALLFUNCTION_BOUNDARY_POST_PROCESSORS_3D_H
#include "core/postProcessing.h"
#include "momentaOnBoundaries.h"
#include "core/blockLattice3D.h"
namespace olb {
template <typename T>
struct wallFunctionParam
{
/* Used method for density reconstruction
* 0: Zou-He
* 1: extrapolation
* 2: constant
*/
int rhoMethod = 1;
/* Used method for non-equilibrium particle distribution reconstruction
* 0: regularized NEBB (Latt)
* 1: extrapolation NEQ (Guo Zhaoli)
* 2: regularized second order finite Differnce
* 3: equilibrium scheme
*/
int fneqMethod = 1;
/* Used wall profile
* 0: Musker profile
* 1: power law profile
*/
int wallProfile = 0;
/// check if descriptor with body force is used
bool bodyForce;
/// special formulation for straight boundaries
bool curved = true;
/// use van Driest damping function in boundary cell
bool useVanDriest = true;
/// von Karman constant for van Driest model
T vonKarman = 0.375;
/// wall distance in lattice units
T latticeWalldistance = 0.5;
};
/// Musker profile
template <typename T, typename S>
class Musker : public AnalyticalF1D<T,S> {
private:
T _nu;
T _y;
T _rho;
public:
Musker(T nu, T y, T rho);
bool operator() (T output[], const S tau_w[]);
};
/// PowerLaw profile
template <typename T, typename S>
class PowerLawProfile : public AnalyticalF1D<T,S> {
private:
T _nu;
T _u2;
T _y2;
T _y1;
T _rho;
public:
PowerLawProfile(T nu, T u2, T y2, T y1, T rho);
bool operator() (T output[], const S tau_w[]);
};
template<typename T, typename DESCRIPTOR>
class WallFunctionBoundaryProcessor3D : public LocalPostProcessor3D<T,DESCRIPTOR> {
public:
WallFunctionBoundaryProcessor3D(int x0, int x1, int y0, int y1, int z0, int z1, BlockGeometryStructure3D<T>& blockGeometryStructure,
std::vector<int> discreteNormal, std::vector<int> missingIndices,
UnitConverter<T, DESCRIPTOR> const& converter, wallFunctionParam<T> const& wallFunctionParam,
IndicatorF3D<T>* geoIndicator);
virtual int extent() const {
return 2;
}
virtual int extent(int whichDirection) const {
return 2;
}
virtual void process(BlockLattice3D<T,DESCRIPTOR>& blockLattice);
virtual void processSubDomain ( BlockLattice3D<T,DESCRIPTOR>& blockLattice,
int x0_, int x1_, int y0_, int y1_, int z0_, int z1_ );
virtual void ComputeWallFunction(BlockLattice3D<T,DESCRIPTOR>& blockLattice, int x, int y, int z);
private:
void getIndices(int index, int value, std::vector<int>& indices);
void calculateWallDistances(IndicatorF3D<T>* indicator);
// FD Difference Methods
void VelGradFromSecondOrderFD(bool NormalGradient, T Vel_BC[DESCRIPTOR::d], T Vel_1[DESCRIPTOR::d], T Vel_2[DESCRIPTOR::d], T VelGrad[DESCRIPTOR::d]);
void computeNeighborsU(BlockLattice3D<T,DESCRIPTOR>& blockLattice, int x, int y, int z,
T u_x1[DESCRIPTOR::d], T u_x2[DESCRIPTOR::d], T u_y1[DESCRIPTOR::d], T u_y2[DESCRIPTOR::d], T u_z1[DESCRIPTOR::d], T u_z2[DESCRIPTOR::d]);
void computeVelocityGradientTensor(T u_bc[DESCRIPTOR::d], T u_x1[DESCRIPTOR::d], T u_x2[DESCRIPTOR::d], T u_y1[DESCRIPTOR::d],
T u_y2[DESCRIPTOR::d], T u_z1[DESCRIPTOR::d], T u_z2[DESCRIPTOR::d], T VelGrad[DESCRIPTOR::d][DESCRIPTOR::d]);
void computeVelocityGradient(BlockLattice3D<T,DESCRIPTOR>& blockLattice, int x, int y, int z, T u_BC[DESCRIPTOR::d], T VelGrad[DESCRIPTOR::d][DESCRIPTOR::d]);
void ComputeUWallNeighbor(BlockLattice3D<T,DESCRIPTOR>& blockLattice, int x, int y, int z, T (&u)[DESCRIPTOR::d]);
void computeNeighborsRho(BlockLattice3D<T,DESCRIPTOR>& blockLattice, int x, int y, int z,
T u_x1[DESCRIPTOR::d], T u_x2[DESCRIPTOR::d], T u_y1[DESCRIPTOR::d], T u_y2[DESCRIPTOR::d], T u_z1[DESCRIPTOR::d], T u_z2[DESCRIPTOR::d],
T& rho_x1, T& rho_x2, T& rho_y1, T& rho_y2, T& rho_z1, T& rho_z2);
void computeNeighborsRhoU(BlockLattice3D<T,DESCRIPTOR>& blockLattice, int x, int y, int z,
T u_x1[DESCRIPTOR::d], T u_x2[DESCRIPTOR::d], T u_y1[DESCRIPTOR::d], T u_y2[DESCRIPTOR::d], T u_z1[DESCRIPTOR::d], T u_z2[DESCRIPTOR::d],
T& rho_x1, T& rho_x2, T& rho_y1, T& rho_y2, T& rho_z1, T& rho_z2);
// Van Driest Method
void computeVanDriestTauEff(T y_bc, T tau_w, T u_bc, T u_1, T u_2, T& tau_eff);
//
void ComputeUWall(BlockLattice3D<T,DESCRIPTOR>& blockLattice, int x, int y, int z, T u[DESCRIPTOR::d]);
void ComputeTauEff(BlockLattice3D<T,DESCRIPTOR>& blockLattice, Cell<T,DESCRIPTOR>& cell, int x, int y, int z, T u_bc[DESCRIPTOR::d]);
void ComputeRhoWall(BlockLattice3D<T,DESCRIPTOR>& blockLattice, Cell<T,DESCRIPTOR>& cell, int x, int y, int z, T u_bc[DESCRIPTOR::d], T& rho_bc);
// Methods FneqWall
void computeRFneqfromFneq(T fneq_bc[DESCRIPTOR::q]);
void computeFneqRNEBB(Cell<T,DESCRIPTOR>& cell, T u_bc[DESCRIPTOR::d], T rho_bc, T fneq_bc[DESCRIPTOR::q]);
void computeFneqENeq(BlockLattice3D<T,DESCRIPTOR>& blockLattice, Cell<T,DESCRIPTOR>& cell, int x, int y, int z, T u_bc[DESCRIPTOR::d], T rho_bc, T fneq_bc[DESCRIPTOR::q]);
void computeFneqRSOFD(BlockLattice3D<T,DESCRIPTOR>& blockLattice, Cell<T,DESCRIPTOR>& cell, int x, int y, int z, T u_bc[DESCRIPTOR::d], T rho_bc, T fneq_bc[DESCRIPTOR::q]);
void ComputeFneqWall(BlockLattice3D<T,DESCRIPTOR>& blockLattice, Cell<T,DESCRIPTOR>& cell, int x, int y, int z, T u_bc[DESCRIPTOR::d], T rho_bc, T fneq_bc[DESCRIPTOR::q]);
int x0, x1, y0, y1, z0, z1;
BlockGeometryStructure3D<T>& _blockGeometryStructure;
std::vector<int> _discreteNormal;
std::vector<int> _missingIndices;
UnitConverter<T, DESCRIPTOR> const& _converter;
wallFunctionParam<T> const& _wallFunctionParam;
T y_1;
T y_2;
int discreteNormalX;
int discreteNormalY;
int discreteNormalZ;
int direction;
int orientation;
T unit_normal[3];
std::vector<int> onWallIndices;
std::vector<int> normalIndices;
std::vector<int> normalInwardsIndices;
};
template<typename T, typename DESCRIPTOR>
class WallFunctionBoundaryProcessorGenerator3D : public PostProcessorGenerator3D<T,DESCRIPTOR> {
public:
WallFunctionBoundaryProcessorGenerator3D(int x0, int x1, int y0, int y1, int z0, int z1, BlockGeometryStructure3D<T>& blockGeometryStructure,
std::vector<int> discreteNormal, std::vector<int> missingIndices,
UnitConverter<T,
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