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+/* This file is part of the OpenLB library
+ *
+ * Copyright (C) 2017 Albert Mink
+ * 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 RTLBM_BOUNDARY_DYNAMICS_HH
+#define RTLBM_BOUNDARY_DYNAMICS_HH
+
+#include "rtlbmBoundaryDynamics.h"
+#include "dynamics/lbHelpers.h"
+
+namespace olb {
+
+
+
+// flat diffuse
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+RtlbmDiffuseBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::RtlbmDiffuseBoundaryDynamics( T omega_, Momenta<T,DESCRIPTOR>& momenta_)
+ : BasicDynamics<T,DESCRIPTOR>(momenta_)
+{
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+T RtlbmDiffuseBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t<T,DESCRIPTOR>(iPop)*rho - descriptors::t<T,DESCRIPTOR>(iPop);
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+void RtlbmDiffuseBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::collide(Cell<T,DESCRIPTOR>& cell,LatticeStatistics<T>& statistics)
+{
+ typedef DESCRIPTOR L;
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ std::vector<int> const missing_iPop = util::subIndexOutgoing<L,direction,orientation>();
+ // compute summ of weights for all missing directions
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t<T,L>(i);
+ }
+ // construct missing directions such that 0th moment equals emposed dirichletTemperature
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t<T,L>(i)*dirichletTemperature/sumWeights - descriptors::t<T,L>(i);
+ }
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+T RtlbmDiffuseBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::getOmega() const
+{
+ return T(-1);
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+void RtlbmDiffuseBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::setOmega(T omega_)
+{
+}
+
+// edge diffuse
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+RtlbmDiffuseEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::RtlbmDiffuseEdgeBoundaryDynamics( T omega_, Momenta<T,DESCRIPTOR>& momenta_)
+ : BasicDynamics<T,DESCRIPTOR>(momenta_)
+{
+}
+
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+T RtlbmDiffuseEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t<T,DESCRIPTOR>(iPop)*rho - descriptors::t<T,DESCRIPTOR>(iPop);
+}
+
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+void RtlbmDiffuseEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::collide(Cell<T,DESCRIPTOR>& cell,LatticeStatistics<T>& statistics)
+{
+ typedef DESCRIPTOR L;
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ std::vector<int> missing_iPop = util::subIndexOutgoing3DonEdges<L,plane,normal1,normal2>();
+ // compute summ of weights for all missing directions
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t<T,L>(i);
+ }
+ // construct missing directions such that 0th moment equals emposed dirichletTemperature
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t<T,L>(i)*dirichletTemperature/sumWeights - descriptors::t<T,L>(i);
+ }
+}
+
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+T RtlbmDiffuseEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::getOmega() const
+{
+ return T(-1);
+}
+
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+void RtlbmDiffuseEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::setOmega(T omega_)
+{
+}
+
+// corner diffuse
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+RtlbmDiffuseCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::RtlbmDiffuseCornerBoundaryDynamics( T omega_, Momenta<T,DESCRIPTOR>& momenta_)
+ : BasicDynamics<T,DESCRIPTOR>(momenta_)
+{
+}
+
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+T RtlbmDiffuseCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t<T,DESCRIPTOR>(iPop)*rho - descriptors::t<T,DESCRIPTOR>(iPop);
+}
+
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+void RtlbmDiffuseCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::collide(Cell<T,DESCRIPTOR>& cell,LatticeStatistics<T>& statistics)
+{
+ typedef DESCRIPTOR L;
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ std::vector<int> const missing_iPop = util::subIndexOutgoing3DonCorners<L,xNormal,yNormal,zNormal>();
+ // compute summ of weights for all missing directions
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t<T,L>(i);
+ }
+ // construct missing directions such that 0th moment equals emposed dirichletTemperature
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t<T,L>(i)*dirichletTemperature/sumWeights - descriptors::t<T,L>(i);
+ }
+}
+
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+T RtlbmDiffuseCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::getOmega() const
+{
+ return T(-1);
+}
+
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+void RtlbmDiffuseCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::setOmega(T omega_)
+{
+}
+
+
+
+
+// flat diffuse constant density
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+RtlbmDiffuseConstBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::RtlbmDiffuseConstBoundaryDynamics( T omega_, Momenta<T,DESCRIPTOR>& momenta_)
+ : BasicDynamics<T,DESCRIPTOR>(momenta_)
+{
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+T RtlbmDiffuseConstBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t<T,DESCRIPTOR>(iPop)*rho - descriptors::t<T,DESCRIPTOR>(iPop);
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+void RtlbmDiffuseConstBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::collide(Cell<T,DESCRIPTOR>& cell,LatticeStatistics<T>& statistics)
+{
+ // For direction i \in I_in define
+ // cell_i = w_i * dirichlet/sumWeights - w_i
+ // For direction i \in I_out defube
+ // cell_i = - w_i
+ // This construction yields
+ // sum_{i=0}^{q-1} cell_i == dirichlet - 1
+
+ typedef DESCRIPTOR L;
+ // shift all: cell_i = f_i - weight_i
+ for ( int iPop = 0; iPop < L::q; ++iPop ) {
+ cell[iPop] = - descriptors::t<T,L>(iPop);
+ }
+
+ std::vector<int> const missing_iPop = util::subIndexOutgoing<L,direction,orientation>();
+ // compute summ of weights for all missing directions
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t<T,L>(i);
+ }
+ // construct missing directions such that 0th moment equals emposed dirichletTemperature
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t<T,L>(i)*dirichletTemperature/sumWeights - descriptors::t<T,L>(i);
+ }
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+T RtlbmDiffuseConstBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::getOmega() const
+{
+ return T(-1);
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+void RtlbmDiffuseConstBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::setOmega(T omega_)
+{
+}
+
+
+
+// edge diffuse with constant density
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+RtlbmDiffuseConstEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::RtlbmDiffuseConstEdgeBoundaryDynamics( T omega_, Momenta<T,DESCRIPTOR>& momenta_)
+ : BasicDynamics<T,DESCRIPTOR>(momenta_)
+{
+}
+
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+T RtlbmDiffuseConstEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t<T,DESCRIPTOR>(iPop)*rho - descriptors::t<T,DESCRIPTOR>(iPop);
+}
+
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+void RtlbmDiffuseConstEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::collide(Cell<T,DESCRIPTOR>& cell,LatticeStatistics<T>& statistics)
+{
+ // For direction i \in I_in define
+ // cell_i = w_i * dirichlet/sumWeights - w_i
+ // For direction i \in I_out defube
+ // cell_i = - w_i
+ // This construction yields
+ // sum_{i=0}^{q-1} cell_i == dirichlet - 1
+
+ typedef DESCRIPTOR L;
+
+ // shift all: cell_i = f_i - weight_i
+ for ( int iPop = 0; iPop < L::q; ++iPop ) {
+ cell[iPop] = - descriptors::t<T,L>(iPop);
+ }
+
+ std::vector<int> missing_iPop = util::subIndexOutgoing3DonEdges<L,plane,normal1,normal2>();
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t<T,L>(i);
+ }
+
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t<T,L>(i)*dirichletTemperature/sumWeights - descriptors::t<T,L>(i);
+ }
+}
+
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+T RtlbmDiffuseConstEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::getOmega() const
+{
+ return T(-1);
+}
+
+template<typename T, typename DESCRIPTOR, int plane, int normal1, int normal2>
+void RtlbmDiffuseConstEdgeBoundaryDynamics<T,DESCRIPTOR,plane,normal1,normal2>::setOmega(T omega_)
+{
+}
+
+
+
+// corner diffuse with constant density
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+RtlbmDiffuseConstCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::RtlbmDiffuseConstCornerBoundaryDynamics( T omega_, Momenta<T,DESCRIPTOR>& momenta_)
+ : BasicDynamics<T,DESCRIPTOR>(momenta_)
+{
+}
+
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+T RtlbmDiffuseConstCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t<T,DESCRIPTOR>(iPop)*rho - descriptors::t<T,DESCRIPTOR>(iPop);
+}
+
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+void RtlbmDiffuseConstCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::collide(Cell<T,DESCRIPTOR>& cell,LatticeStatistics<T>& statistics)
+{
+ // For direction i \in I_in define
+ // cell_i = w_i * dirichlet/sumWeights - w_i
+ // For direction i \in I_out defube
+ // cell_i = - w_i
+ // This construction yields
+ // sum_{i=0}^{q-1} cell_i == dirichlet - 1
+
+ typedef DESCRIPTOR L;
+
+ // shift all: cell_i = f_i - weight_i
+ for ( int iPop = 0; iPop < L::q; ++iPop ) {
+ cell[iPop] = - descriptors::t<T,L>(iPop);
+ }
+
+ std::vector<int> const missing_iPop = util::subIndexOutgoing3DonCorners<L,xNormal,yNormal,zNormal>();
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t<T,L>(i);
+ }
+
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t<T,L>(i)*dirichletTemperature/sumWeights - descriptors::t<T,L>(i);
+ }
+}
+
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+T RtlbmDiffuseConstCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::getOmega() const
+{
+ return T(-1);
+}
+
+template<typename T, typename DESCRIPTOR, int xNormal, int yNormal, int zNormal>
+void RtlbmDiffuseConstCornerBoundaryDynamics<T,DESCRIPTOR,xNormal,yNormal,zNormal>::setOmega(T omega_)
+{
+}
+
+
+// directed wall
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+RtlbmDirectedBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::RtlbmDirectedBoundaryDynamics( T omega_, Momenta<T,DESCRIPTOR>& momenta_)
+ : BasicDynamics<T,DESCRIPTOR>(momenta_)
+{
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+T RtlbmDirectedBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return lbHelpers<T,DESCRIPTOR>::equilibriumFirstOrder( iPop, rho, u );
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+void RtlbmDirectedBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::collide(Cell<T,DESCRIPTOR>& cell,LatticeStatistics<T>& statistics)
+{
+ typedef DESCRIPTOR L;
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+
+ for( int iPop = 0; iPop < L::q; ++iPop ) {
+ cell[iPop] = - descriptors::t<T,L>(iPop);
+ }
+
+ std::vector<int> const missingDiagonal = util::subIndexOutgoing<L,direction,orientation>();
+ for ( int i : missingDiagonal ) {
+ // compute norm of c_iPopMissing
+ // is direction axis parallel
+ if ( util::normSqr<int,L::d>(descriptors::c<L>(i)) == 1 ) {
+ cell[i] = dirichletTemperature - descriptors::t<T,L>(i);
+ }
+ }
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+T RtlbmDirectedBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::getOmega() const
+{
+ return T(-1);
+}
+
+template<typename T, typename DESCRIPTOR, int direction, int orientation>
+void RtlbmDirectedBoundaryDynamics<T,DESCRIPTOR,direction,orientation>::setOmega(T omega_)
+{
+}
+
+
+
+
+
+
+
+} // namespace olb
+
+
+#endif