From 94d3e79a8617f88dc0219cfdeedfa3147833719d Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Mon, 24 Jun 2019 14:43:36 +0200
Subject: Initialize at openlb-1-3
---
src/boundary/rtlbmBoundaryDynamics.hh | 377 ++++++++++++++++++++++++++++++++++
1 file changed, 377 insertions(+)
create mode 100644 src/boundary/rtlbmBoundaryDynamics.hh
(limited to 'src/boundary/rtlbmBoundaryDynamics.hh')
diff --git a/src/boundary/rtlbmBoundaryDynamics.hh b/src/boundary/rtlbmBoundaryDynamics.hh
new file mode 100644
index 0000000..0e5ce92
--- /dev/null
+++ b/src/boundary/rtlbmBoundaryDynamics.hh
@@ -0,0 +1,377 @@
+/* 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
+ *
+ *
+ * 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
+RtlbmDiffuseBoundaryDynamics::RtlbmDiffuseBoundaryDynamics( T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_)
+{
+}
+
+template
+T RtlbmDiffuseBoundaryDynamics::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t(iPop)*rho - descriptors::t(iPop);
+}
+
+template
+void RtlbmDiffuseBoundaryDynamics::collide(Cell& cell,LatticeStatistics& statistics)
+{
+ typedef DESCRIPTOR L;
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ std::vector const missing_iPop = util::subIndexOutgoing();
+ // compute summ of weights for all missing directions
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t(i);
+ }
+ // construct missing directions such that 0th moment equals emposed dirichletTemperature
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t(i)*dirichletTemperature/sumWeights - descriptors::t(i);
+ }
+}
+
+template
+T RtlbmDiffuseBoundaryDynamics::getOmega() const
+{
+ return T(-1);
+}
+
+template
+void RtlbmDiffuseBoundaryDynamics::setOmega(T omega_)
+{
+}
+
+// edge diffuse
+template
+RtlbmDiffuseEdgeBoundaryDynamics::RtlbmDiffuseEdgeBoundaryDynamics( T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_)
+{
+}
+
+template
+T RtlbmDiffuseEdgeBoundaryDynamics::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t(iPop)*rho - descriptors::t(iPop);
+}
+
+template
+void RtlbmDiffuseEdgeBoundaryDynamics::collide(Cell& cell,LatticeStatistics& statistics)
+{
+ typedef DESCRIPTOR L;
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ std::vector missing_iPop = util::subIndexOutgoing3DonEdges();
+ // compute summ of weights for all missing directions
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t(i);
+ }
+ // construct missing directions such that 0th moment equals emposed dirichletTemperature
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t(i)*dirichletTemperature/sumWeights - descriptors::t(i);
+ }
+}
+
+template
+T RtlbmDiffuseEdgeBoundaryDynamics::getOmega() const
+{
+ return T(-1);
+}
+
+template
+void RtlbmDiffuseEdgeBoundaryDynamics::setOmega(T omega_)
+{
+}
+
+// corner diffuse
+template
+RtlbmDiffuseCornerBoundaryDynamics::RtlbmDiffuseCornerBoundaryDynamics( T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_)
+{
+}
+
+template
+T RtlbmDiffuseCornerBoundaryDynamics::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t(iPop)*rho - descriptors::t(iPop);
+}
+
+template
+void RtlbmDiffuseCornerBoundaryDynamics::collide(Cell& cell,LatticeStatistics& statistics)
+{
+ typedef DESCRIPTOR L;
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ std::vector const missing_iPop = util::subIndexOutgoing3DonCorners();
+ // compute summ of weights for all missing directions
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t(i);
+ }
+ // construct missing directions such that 0th moment equals emposed dirichletTemperature
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t(i)*dirichletTemperature/sumWeights - descriptors::t(i);
+ }
+}
+
+template
+T RtlbmDiffuseCornerBoundaryDynamics::getOmega() const
+{
+ return T(-1);
+}
+
+template
+void RtlbmDiffuseCornerBoundaryDynamics::setOmega(T omega_)
+{
+}
+
+
+
+
+// flat diffuse constant density
+template
+RtlbmDiffuseConstBoundaryDynamics::RtlbmDiffuseConstBoundaryDynamics( T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_)
+{
+}
+
+template
+T RtlbmDiffuseConstBoundaryDynamics::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t(iPop)*rho - descriptors::t(iPop);
+}
+
+template
+void RtlbmDiffuseConstBoundaryDynamics::collide(Cell& cell,LatticeStatistics& 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(iPop);
+ }
+
+ std::vector const missing_iPop = util::subIndexOutgoing();
+ // compute summ of weights for all missing directions
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t(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(i)*dirichletTemperature/sumWeights - descriptors::t(i);
+ }
+}
+
+template
+T RtlbmDiffuseConstBoundaryDynamics::getOmega() const
+{
+ return T(-1);
+}
+
+template
+void RtlbmDiffuseConstBoundaryDynamics::setOmega(T omega_)
+{
+}
+
+
+
+// edge diffuse with constant density
+template
+RtlbmDiffuseConstEdgeBoundaryDynamics::RtlbmDiffuseConstEdgeBoundaryDynamics( T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_)
+{
+}
+
+template
+T RtlbmDiffuseConstEdgeBoundaryDynamics::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t(iPop)*rho - descriptors::t(iPop);
+}
+
+template
+void RtlbmDiffuseConstEdgeBoundaryDynamics::collide(Cell& cell,LatticeStatistics& 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(iPop);
+ }
+
+ std::vector missing_iPop = util::subIndexOutgoing3DonEdges();
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t(i);
+ }
+
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t(i)*dirichletTemperature/sumWeights - descriptors::t(i);
+ }
+}
+
+template
+T RtlbmDiffuseConstEdgeBoundaryDynamics::getOmega() const
+{
+ return T(-1);
+}
+
+template
+void RtlbmDiffuseConstEdgeBoundaryDynamics::setOmega(T omega_)
+{
+}
+
+
+
+// corner diffuse with constant density
+template
+RtlbmDiffuseConstCornerBoundaryDynamics::RtlbmDiffuseConstCornerBoundaryDynamics( T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_)
+{
+}
+
+template
+T RtlbmDiffuseConstCornerBoundaryDynamics::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return descriptors::t(iPop)*rho - descriptors::t(iPop);
+}
+
+template
+void RtlbmDiffuseConstCornerBoundaryDynamics::collide(Cell& cell,LatticeStatistics& 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(iPop);
+ }
+
+ std::vector const missing_iPop = util::subIndexOutgoing3DonCorners();
+ double sumWeights = 0;
+ for ( int i : missing_iPop ) {
+ sumWeights += descriptors::t(i);
+ }
+
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ for ( int i : missing_iPop ) {
+ cell[i] = descriptors::t(i)*dirichletTemperature/sumWeights - descriptors::t(i);
+ }
+}
+
+template
+T RtlbmDiffuseConstCornerBoundaryDynamics::getOmega() const
+{
+ return T(-1);
+}
+
+template
+void RtlbmDiffuseConstCornerBoundaryDynamics::setOmega(T omega_)
+{
+}
+
+
+// directed wall
+template
+RtlbmDirectedBoundaryDynamics::RtlbmDirectedBoundaryDynamics( T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_)
+{
+}
+
+template
+T RtlbmDirectedBoundaryDynamics::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return lbHelpers::equilibriumFirstOrder( iPop, rho, u );
+}
+
+template
+void RtlbmDirectedBoundaryDynamics::collide(Cell& cell,LatticeStatistics& statistics)
+{
+ typedef DESCRIPTOR L;
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+
+ for( int iPop = 0; iPop < L::q; ++iPop ) {
+ cell[iPop] = - descriptors::t(iPop);
+ }
+
+ std::vector const missingDiagonal = util::subIndexOutgoing();
+ for ( int i : missingDiagonal ) {
+ // compute norm of c_iPopMissing
+ // is direction axis parallel
+ if ( util::normSqr(descriptors::c(i)) == 1 ) {
+ cell[i] = dirichletTemperature - descriptors::t(i);
+ }
+ }
+}
+
+template
+T RtlbmDirectedBoundaryDynamics::getOmega() const
+{
+ return T(-1);
+}
+
+template
+void RtlbmDirectedBoundaryDynamics::setOmega(T omega_)
+{
+}
+
+
+
+
+
+
+
+} // namespace olb
+
+
+#endif
--
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