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/advectionDiffusionBoundaries.hh | 313 +++++++++++++++++++++++++++
1 file changed, 313 insertions(+)
create mode 100644 src/boundary/advectionDiffusionBoundaries.hh
(limited to 'src/boundary/advectionDiffusionBoundaries.hh')
diff --git a/src/boundary/advectionDiffusionBoundaries.hh b/src/boundary/advectionDiffusionBoundaries.hh
new file mode 100644
index 0000000..7c7f391
--- /dev/null
+++ b/src/boundary/advectionDiffusionBoundaries.hh
@@ -0,0 +1,313 @@
+/* This file is part of the OpenLB library
+ *
+ * Copyright (C) 2008 Orestis Malaspinas, Andrea Parmigiani
+ * 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 ADVECTION_DIFFUSION_BOUNDARIES_HH
+#define ADVECTION_DIFFUSION_BOUNDARIES_HH
+
+#include "advectionDiffusionBoundaries.h"
+#include "dynamics/latticeDescriptors.h"
+#include "core/util.h"
+#include "dynamics/lbHelpers.h"
+
+namespace olb {
+
+
+
+//==================================================================================================
+//==================== For regularized Advection Diffusion Boundary Condition ======================
+//============================================================================================
+
+
+// For flat Walls
+
+template
+AdvectionDiffusionBoundariesDynamics::
+AdvectionDiffusionBoundariesDynamics( T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_), boundaryDynamics(omega_, momenta_)
+{
+}
+
+template
+T AdvectionDiffusionBoundariesDynamics::
+computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return lbHelpers::equilibriumFirstOrder( iPop, rho, u );
+}
+
+
+template
+void AdvectionDiffusionBoundariesDynamics::
+collide(Cell& cell,LatticeStatistics& statistics)
+{
+ typedef DESCRIPTOR L;
+ typedef lbHelpers lbH;
+
+ T dirichletTemperature = this->_momenta.computeRho(cell);
+ T* u = cell.template getFieldPointer();
+
+ std::vector unknownIndexes = util::subIndexOutgoing();
+ std::vector knownIndexes = util::remainingIndexes(unknownIndexes);
+
+ int missingNormal = 0;
+
+ if ((L::d == 3 && L::q == 7)||(L::d == 2 && L::q == 5)) {
+ T sum = T();
+ for (unsigned i = 0; i < knownIndexes.size(); ++i) {
+ sum += cell[knownIndexes[i]];
+ }
+
+ T difference = dirichletTemperature - (T) 1 - sum; // on cell there are non-shiftet values -> temperature has to be changed
+
+ // here I know all missing and non missing f_i
+ for (unsigned i = 0; i < unknownIndexes.size(); ++i) {
+ int numOfNonNullComp = 0;
+ for (int iDim = 0; iDim < L::d; ++iDim) {
+ numOfNonNullComp += abs(descriptors::c(unknownIndexes[i],iDim));
+ }
+ if (numOfNonNullComp == 1) {
+ missingNormal = unknownIndexes[i];
+ // here missing diagonal directions are erased
+ // just the normal direction stays (D3Q7)
+ unknownIndexes.erase(unknownIndexes.begin() + i);
+ break;
+
+ }
+ }
+ cell[missingNormal] = difference; // on cell there are non-shiftet values -> temperature has to be changed
+ boundaryDynamics.collide(cell, statistics); // only for D3Q7
+ } else {
+ // part for q=19 copied from AdvectionDiffusionEdgesDynamics.collide()
+ // but here just all missing directions, even at border of inlet area
+ // has to be checked!
+ for (unsigned iteratePop = 0; iteratePop < unknownIndexes.size();
+ ++iteratePop) {
+ cell[unknownIndexes[iteratePop]] =
+ lbH::equilibriumFirstOrder(unknownIndexes[iteratePop], dirichletTemperature, u)
+ - (cell[util::opposite(unknownIndexes[iteratePop])]
+ - lbH::equilibriumFirstOrder(
+ util::opposite(unknownIndexes[iteratePop]),
+ dirichletTemperature, u));
+ }
+ }
+}
+
+template
+T AdvectionDiffusionBoundariesDynamics::
+getOmega() const
+{
+ return boundaryDynamics.getOmega();
+}
+
+template
+void AdvectionDiffusionBoundariesDynamics::
+setOmega(T omega_)
+{
+ boundaryDynamics.setOmega(omega_);
+}
+
+//=================================================================
+// For 2D Corners with regularized Dynamic ==============================================
+//=================================================================
+template
+AdvectionDiffusionCornerDynamics2D::AdvectionDiffusionCornerDynamics2D(
+ T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_),
+ boundaryDynamics(omega_, momenta_)
+{
+}
+
+template
+T AdvectionDiffusionCornerDynamics2D::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return lbHelpers::equilibriumFirstOrder( iPop, rho, u );
+}
+
+
+template
+void AdvectionDiffusionCornerDynamics2D::collide(Cell& cell,LatticeStatistics& statistics)
+{
+ typedef DESCRIPTOR L;
+ typedef lbHelpers lbH;
+
+ T temperature = this->_momenta.computeRho(cell);
+ T* u = cell.template getFieldPointer();
+ // I need to get Missing information on the corners !!!!
+ std::vector unknownIndexes = util::subIndexOutgoing2DonCorners();
+ // here I know all missing and non missing f_i
+
+
+ // The collision procedure for D2Q5 and D3Q7 lattice is the same ...
+ // Given the rule f_i_neq = -f_opposite(i)_neq
+ // I have the right number of equations for the number of unknowns using these lattices
+
+ for (unsigned iPop = 0; iPop < unknownIndexes.size(); ++iPop) {
+ cell[unknownIndexes[iPop]] = lbH::equilibriumFirstOrder(unknownIndexes[iPop], temperature, u)
+ -(cell[util::opposite(unknownIndexes[iPop])]
+ - lbH::equilibriumFirstOrder(util::opposite(unknownIndexes[iPop]), temperature, u) ) ;
+ }
+
+ // Once all the f_i are known, I can call the collision for the Regularized Model.
+ boundaryDynamics.collide(cell, statistics);
+
+}
+
+template
+T AdvectionDiffusionCornerDynamics2D::getOmega() const
+{
+ return boundaryDynamics.getOmega();
+}
+
+template
+void AdvectionDiffusionCornerDynamics2D::setOmega(T omega_)
+{
+ boundaryDynamics.setOmega(omega_);
+}
+
+
+
+//=================================================================
+// For 3D Corners with regularized Dynamic ==============================================
+//=================================================================
+template
+AdvectionDiffusionCornerDynamics3D::AdvectionDiffusionCornerDynamics3D(
+ T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_),
+ boundaryDynamics(omega_, momenta_)
+{
+}
+
+template
+T AdvectionDiffusionCornerDynamics3D::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return lbHelpers::equilibriumFirstOrder( iPop, rho, u );
+}
+
+
+template
+void AdvectionDiffusionCornerDynamics3D::collide(Cell& cell,LatticeStatistics& statistics)
+{
+ typedef DESCRIPTOR L;
+ typedef lbHelpers lbH;
+
+ T temperature = this->_momenta.computeRho(cell);
+ T* u = cell.template getFieldPointer();
+ // I need to get Missing information on the corners !!!!
+ std::vector unknownIndexes = util::subIndexOutgoing3DonCorners();
+ // here I know all missing and non missing f_i
+
+
+ // The collision procedure for D2Q5 and D3Q7 lattice is the same ...
+ // Given the rule f_i_neq = -f_opposite(i)_neq
+ // I have the right number of equations for the number of unknowns using these lattices
+
+ for (unsigned iPop = 0; iPop < unknownIndexes.size(); ++iPop) {
+ cell[unknownIndexes[iPop]] = lbH::equilibriumFirstOrder(unknownIndexes[iPop], temperature, u)
+ -(cell[util::opposite(unknownIndexes[iPop])]
+ - lbH::equilibriumFirstOrder(util::opposite(unknownIndexes[iPop]), temperature, u) ) ;
+ }
+
+ // Once all the f_i are known, I can call the collision for the Regularized Model.
+ boundaryDynamics.collide(cell, statistics);
+
+}
+
+template
+T AdvectionDiffusionCornerDynamics3D::getOmega() const
+{
+ return boundaryDynamics.getOmega();
+}
+
+template
+void AdvectionDiffusionCornerDynamics3D::setOmega(T omega_)
+{
+ boundaryDynamics.setOmega(omega_);
+}
+
+//=================================================================
+// For 3D Edges with regularized Dynamic ==============================================
+//=================================================================
+template
+AdvectionDiffusionEdgesDynamics::AdvectionDiffusionEdgesDynamics(
+ T omega_, Momenta& momenta_)
+ : BasicDynamics(momenta_),
+ boundaryDynamics(omega_, momenta_)
+{
+}
+
+template
+T AdvectionDiffusionEdgesDynamics::computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const
+{
+ return lbHelpers::equilibriumFirstOrder( iPop, rho, u );
+}
+
+
+template
+void AdvectionDiffusionEdgesDynamics::collide(Cell& cell,LatticeStatistics& statistics)
+{
+ typedef DESCRIPTOR L;
+ typedef lbHelpers lbH;
+
+ T temperature = this->_momenta.computeRho(cell);
+ T* u = cell.template getFieldPointer();
+ // I need to get Missing information on the corners !!!!
+ std::vector unknownIndexes = util::subIndexOutgoing3DonEdges();
+ // here I know all missing and non missing f_i
+
+
+ // The collision procedure for D2Q5 and D3Q7 lattice is the same ...
+ // Given the rule f_i_neq = -f_opposite(i)_neq
+ // I have the right number of equations for the number of unknowns using these lattices
+
+ for (unsigned iPop = 0; iPop < unknownIndexes.size(); ++iPop) {
+ cell[unknownIndexes[iPop]] = lbH::equilibriumFirstOrder(unknownIndexes[iPop], temperature, u)
+ -(cell[util::opposite(unknownIndexes[iPop])]
+ - lbH::equilibriumFirstOrder(util::opposite(unknownIndexes[iPop]), temperature, u) ) ;
+ }
+
+ // Once all the f_i are known, I can call the collision for the Regularized Model.
+ boundaryDynamics.collide(cell, statistics);
+
+}
+
+template
+T AdvectionDiffusionEdgesDynamics::getOmega() const
+{
+ return boundaryDynamics.getOmega();
+}
+
+template
+void AdvectionDiffusionEdgesDynamics::setOmega(T omega_)
+{
+ boundaryDynamics.setOmega(omega_);
+}
+
+
+
+
+} // namespace olb
+
+
+
+
+#endif
--
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