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
---
.../thermal/porousPlate3d/thermalPorousPlate3d.cpp | 494 +++++++++++++++++++++
1 file changed, 494 insertions(+)
create mode 100644 examples/thermal/porousPlate3d/thermalPorousPlate3d.cpp
(limited to 'examples/thermal/porousPlate3d/thermalPorousPlate3d.cpp')
diff --git a/examples/thermal/porousPlate3d/thermalPorousPlate3d.cpp b/examples/thermal/porousPlate3d/thermalPorousPlate3d.cpp
new file mode 100644
index 0000000..c197228
--- /dev/null
+++ b/examples/thermal/porousPlate3d/thermalPorousPlate3d.cpp
@@ -0,0 +1,494 @@
+/* Lattice Boltzmann sample, written in C++, using the OpenLB
+ * library
+ *
+ * Copyright (C) 2008 Orestis Malaspinas
+ * 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.
+ */
+
+/* rayleighBenard2d.cpp:
+ * Rayleigh-Benard convection rolls in 2D, simulated with
+ * the thermal LB model by Z. Guo e.a., between a hot plate at
+ * the bottom and a cold plate at the top.
+ */
+
+#include "olb3D.h"
+#include "olb3D.hh" // use only generic version!
+#include
+#include
+#include
+#include
+#include
+
+
+using namespace olb;
+using namespace olb::descriptors;
+using namespace olb::graphics;
+using namespace std;
+
+typedef double T;
+
+
+#define NSDESCRIPTOR D3Q19
+#define TDESCRIPTOR D3Q7
+
+
+
+
+// const int maxIter = 1000000;
+// const int saveIter = 5000;
+
+// Parameters for the simulation setup
+const T lx = 1.0; // length of the channel
+const T ly = 1.0; // height of the channel
+T lz = 1.0;
+int N = 20; // resolution of the model
+T tau = 1.; // relaxation time
+const T Re = 5.; // Reynolds number
+const T Ra = 100.; // Rayleigh number
+const T Pr = 0.71; // Prandtl number
+const T maxPhysT = 1e4; // max. simulation time in s, SI unit
+const T epsilon = 1.e-7; // precision of the convergence (residuum)
+
+const T Tcold = 273.15;
+const T Thot = 274.15;
+
+
+template
+class AnalyticalVelocityPorousPlate3D : public AnalyticalF3D {
+private:
+ T _Re;
+ T _u0;
+ T _v0;
+ T _ly;
+public:
+ AnalyticalVelocityPorousPlate3D(T Re, T u0, T v0, T ly) : AnalyticalF3D(3),
+ _Re(Re), _u0(u0), _v0(v0), _ly(ly)
+ {
+ this->getName() = "AnalyticalVelocityPorousPlate3D";
+ };
+
+ bool operator()(T output[3], const S x[3])
+ {
+ output[0] = _u0*((exp(_Re* x[1] / _ly) - 1) / (exp(_Re) - 1));
+ output[1] = _v0;
+ output[2] = 0.0;
+ return true;
+ };
+};
+
+template
+class AnalyticalTemperaturePorousPlate3D : public AnalyticalF3D {
+private:
+ T _Re;
+ T _Pr;
+ T _ly;
+ T _T0;
+ T _deltaT;
+public:
+ AnalyticalTemperaturePorousPlate3D(T Re, T u0, T ly, T T0, T deltaT) : AnalyticalF3D(1),
+ _Re(Re), _Pr(Pr), _ly(ly), _T0(T0), _deltaT(deltaT)
+ {
+ this->getName() = "AnalyticalTemperaturePorousPlate3D";
+ };
+
+ bool operator()(T output[1], const S x[3])
+ {
+ output[0] = _T0 + _deltaT*((exp(_Pr*_Re*x[1] / _ly) - 1) / (exp(_Pr*_Re) - 1));
+ return true;
+ };
+};
+
+template
+class AnalyticalHeatFluxPorousPlate3D : public AnalyticalF3D {
+private:
+ T _Re;
+ T _Pr;
+ T _deltaT;
+ T _ly;
+ T _lambda;
+public:
+ AnalyticalHeatFluxPorousPlate3D(T Re, T Pr, T deltaT, T ly,T lambda) : AnalyticalF3D(3),
+ _Re(Re), _Pr(Pr), _deltaT(deltaT), _ly(ly), _lambda(lambda)
+ {
+ this->getName() = "AnalyticalHeatFluxPorousPlate3D";
+ };
+
+ bool operator()(T output[3], const S x[3])
+ {
+ output[0] = 0;
+ output[1] = - _lambda * _Re * _Pr * _deltaT / _ly * (exp(_Pr * _Re * x[1] / _ly))/(exp(_Pr * _Re) - 1);
+ output[2] = 0;
+ return true;
+ };
+};
+
+void error( SuperGeometry3D& superGeometry,
+ SuperLattice3D& NSlattice,
+ SuperLattice3D& ADlattice,
+ ThermalUnitConverter const& converter,
+ T Re )
+{
+ OstreamManager clout( std::cout, "error" );
+
+ int input[1] = { };
+ T result[1] = { };
+
+ auto indicatorF = superGeometry.getMaterialIndicator(1);
+
+ T u_Re = Re * converter.getPhysViscosity() / converter.getCharPhysLength();
+ AnalyticalVelocityPorousPlate3D uSol(Re,converter.getCharPhysVelocity(), u_Re, converter.getCharPhysLength());
+ SuperLatticePhysVelocity3D u(NSlattice,converter);
+
+ SuperAbsoluteErrorL2Norm3D absVelocityErrorNormL2(u, uSol, indicatorF);
+ absVelocityErrorNormL2(result, input);
+ clout << "velocity-L2-error(abs)=" << result[0];
+ SuperRelativeErrorL2Norm3D relVelocityErrorNormL2(u, uSol, indicatorF);
+ relVelocityErrorNormL2(result, input);
+ clout << "; velocity-L2-error(rel)=" << result[0] << std::endl;
+
+ AnalyticalTemperaturePorousPlate3D tSol(Re, Pr, converter.getCharPhysLength(), converter.getCharPhysLowTemperature(), converter.getCharPhysTemperatureDifference());
+ SuperLatticePhysTemperature3D t(ADlattice, converter);
+
+ SuperAbsoluteErrorL2Norm3D absTemperatureErrorNormL2(t, tSol, indicatorF);
+ absTemperatureErrorNormL2(result, input);
+ clout << "temperature-L2-error(abs)=" << result[0];
+ SuperRelativeErrorL2Norm3D relTemperatureErrorNormL2(t, tSol, indicatorF);
+ relTemperatureErrorNormL2(result, input);
+ clout << "; temperature-L2-error(rel)=" << result[0] << std::endl;
+
+ AnalyticalHeatFluxPorousPlate3D HeatFluxSol(Re, Pr, converter.getCharPhysTemperatureDifference(), converter.getCharPhysLength(), converter.getThermalConductivity());
+ SuperLatticePhysHeatFlux3D HeatFlux(ADlattice,converter);
+
+ SuperAbsoluteErrorL2Norm3D absHeatFluxErrorNormL2(HeatFlux, HeatFluxSol, indicatorF);
+ absHeatFluxErrorNormL2(result, input);
+ clout << "heatFlux-L2-error(abs)=" << result[0];
+ SuperRelativeErrorL2Norm3D relHeatFluxErrorNormL2(HeatFlux, HeatFluxSol, indicatorF);
+ relHeatFluxErrorNormL2(result, input);
+ clout << "; heatFlux-L2-error(rel)=" << result[0] << std::endl;
+}
+
+/// Stores geometry information in form of material numbers
+void prepareGeometry(SuperGeometry3D& superGeometry,
+ ThermalUnitConverter const&converter)
+{
+
+ OstreamManager clout(std::cout,"prepareGeometry");
+ clout << "Prepare Geometry ..." << std::endl;
+
+ superGeometry.rename(0,2);
+ superGeometry.rename(2,1,0,1,0);
+ //superGeometry.clean();
+
+ std::vector extend( 3, T(0) );
+ extend[0] = lx;
+ extend[1] = converter.getPhysLength(1);
+ extend[2] = lz;
+ std::vector origin( 3, T(0) );
+ IndicatorCuboid3D bottom(extend, origin);
+ /// Set material number for bottom
+ superGeometry.rename(2,3,1,bottom);
+
+ /// Removes all not needed boundary voxels outside the surface
+ superGeometry.clean();
+ /// Removes all not needed boundary voxels inside the surface
+ superGeometry.innerClean();
+ superGeometry.checkForErrors();
+
+ superGeometry.print();
+
+ clout << "Prepare Geometry ... OK" << std::endl;
+}
+
+void prepareLattice( ThermalUnitConverter const& converter,
+ SuperLattice3D& NSlattice,
+ SuperLattice3D& ADlattice,
+ Dynamics &bulkDynamics,
+ Dynamics& advectionDiffusionBulkDynamics,
+ sOnLatticeBoundaryCondition3D& NSboundaryCondition,
+ sOnLatticeBoundaryCondition3D& TboundaryCondition,
+ SuperGeometry3D& superGeometry )
+{
+
+ OstreamManager clout(std::cout,"prepareLattice");
+
+ T Tomega = converter.getLatticeThermalRelaxationFrequency();
+ T NSomega = converter.getLatticeRelaxationFrequency();
+
+ /// define lattice Dynamics
+ clout << "defining dynamics" << endl;
+
+ ADlattice.defineDynamics(superGeometry, 0, &instances::getNoDynamics());
+ NSlattice.defineDynamics(superGeometry, 0, &instances::getNoDynamics());
+
+ ADlattice.defineDynamics(superGeometry.getMaterialIndicator({1, 2, 3}), &advectionDiffusionBulkDynamics);
+ NSlattice.defineDynamics(superGeometry.getMaterialIndicator({1, 2, 3}), &bulkDynamics);
+
+ /// sets boundary
+ NSboundaryCondition.addVelocityBoundary(superGeometry.getMaterialIndicator({2, 3}), NSomega);
+ TboundaryCondition.addTemperatureBoundary(superGeometry.getMaterialIndicator({2, 3}), Tomega);
+}
+
+void setBoundaryValues(ThermalUnitConverter const& converter,
+ SuperLattice3D& NSlattice,
+ SuperLattice3D& ADlattice,
+ int iT, SuperGeometry3D& superGeometry)
+{
+
+ if (iT == 0) {
+
+// typedef advectionDiffusionLbHelpers TlbH;
+
+ /// for each material set the defineRhoU and the Equilibrium
+ std::vector zero(3,T());
+ AnalyticalConst3D u(zero);
+ AnalyticalConst3D rho(1.);
+ AnalyticalConst3D force(zero);
+
+ T u_Re = converter.getLatticeVelocity( Re * converter.getPhysViscosity() / converter.getCharPhysLength() );
+ AnalyticalConst3D u_top(converter.getCharLatticeVelocity(), u_Re, 0.0);
+ AnalyticalConst3D u_bot(0.0, u_Re, 0.0);
+
+ NSlattice.defineRhoU(superGeometry, 1, rho, u);
+ NSlattice.iniEquilibrium(superGeometry, 1, rho, u);
+ NSlattice.defineField(superGeometry, 1, force);
+ NSlattice.defineRhoU(superGeometry, 2, rho, u_top);
+ NSlattice.iniEquilibrium(superGeometry, 2, rho, u_top);
+ NSlattice.defineField(superGeometry, 2, force);
+ NSlattice.defineRhoU(superGeometry, 3, rho, u_bot);
+ NSlattice.iniEquilibrium(superGeometry, 3, rho, u_bot);
+ NSlattice.defineField(superGeometry, 3, force);
+
+ AnalyticalConst3D Cold(converter.getLatticeTemperature(Tcold));
+ AnalyticalConst3D Hot(converter.getLatticeTemperature(Thot));
+
+ ADlattice.defineRho(superGeometry, 1, Cold);
+ ADlattice.iniEquilibrium(superGeometry, 1, Cold, u);
+ ADlattice.defineField(superGeometry, 1, u);
+ ADlattice.defineRho(superGeometry, 2, Hot);
+ ADlattice.iniEquilibrium(superGeometry, 2, Hot, u);
+ ADlattice.defineField(superGeometry, 2, u);
+ ADlattice.defineRho(superGeometry, 3, Cold);
+ ADlattice.iniEquilibrium(superGeometry, 3, Cold, u);
+ ADlattice.defineField(superGeometry, 3, u);
+
+ /// Make the lattice ready for simulation
+ NSlattice.initialize();
+ ADlattice.initialize();
+ }
+}
+
+void getResults(ThermalUnitConverter const& converter,
+ SuperLattice3D& NSlattice,
+ SuperLattice3D& ADlattice, int iT,
+ SuperGeometry3D& superGeometry,
+ Timer& timer,
+ bool converged)
+{
+
+ OstreamManager clout(std::cout,"getResults");
+
+ SuperVTMwriter3D vtkWriter("thermalPorousPlate3d");
+
+ SuperLatticePhysVelocity3D velocity(NSlattice, converter);
+ SuperLatticePhysPressure3D pressure(NSlattice, converter);
+ SuperLatticePhysTemperature3D temperature(ADlattice, converter);
+
+ AnalyticalHeatFluxPorousPlate3D HeatFluxSol(Re, Pr, converter.getCharPhysTemperatureDifference(), converter.getCharPhysLength(), converter.getThermalConductivity());
+ SuperLatticePhysHeatFlux3D HeatFlux1(ADlattice,converter);
+ SuperLatticeFfromAnalyticalF3D HeatFluxSolLattice(HeatFluxSol,ADlattice);
+ vtkWriter.addFunctor( pressure );
+ vtkWriter.addFunctor( velocity );
+ vtkWriter.addFunctor( temperature );
+ vtkWriter.addFunctor( HeatFlux1 );
+ vtkWriter.addFunctor( HeatFluxSolLattice );
+
+ const int vtkIter = converter.getLatticeTime(100.);
+
+ if (iT == 0) {
+ /// Writes the converter log file
+ //writeLogFile(converter,"thermalPorousPlate3d");
+
+ /// Writes the geometry, cuboid no. and rank no. as vti file for visualization
+ SuperLatticeGeometry3D geometry(NSlattice, superGeometry);
+ SuperLatticeCuboid3D cuboid(NSlattice);
+ SuperLatticeRank3D rank(NSlattice);
+ vtkWriter.write(geometry);
+ vtkWriter.write(cuboid);
+ vtkWriter.write(rank);
+
+ vtkWriter.createMasterFile();
+ }
+
+ /// Writes the VTK files
+ if (iT%vtkIter == 0 || converged) {
+ NSlattice.getStatistics().print(iT,converter.getPhysTime(iT));
+ timer.print(iT);
+ error(superGeometry, NSlattice, ADlattice, converter, Re);
+
+ vtkWriter.write(iT);
+
+ BlockReduction3D2D planeReduction( temperature, {0,0,1}, 600, BlockDataSyncMode::ReduceOnly );
+ // write output as JPEG
+ heatmap::plotParam jpeg_Param;
+ jpeg_Param.maxValue = Thot;
+ jpeg_Param.minValue = Tcold;
+ heatmap::write(planeReduction, iT, jpeg_Param);
+
+ /* BlockLatticeReduction3D planeReduction(temperature);
+ BlockGifWriter gifWriter;
+ gifWriter.write(planeReduction, iT, "temperature");*/
+ }
+
+}
+
+
+int main(int argc, char *argv[])
+{
+
+ /// === 1st Step: Initialization ===
+ OstreamManager clout(std::cout,"main");
+ olbInit(&argc, &argv);
+ singleton::directories().setOutputDir("./tmp/");
+
+ fstream f;
+ if (argc >= 2) {
+ N = atoi(argv[1]);
+ }
+ if (argc == 3) {
+ tau = atof(argv[2]);
+ }
+
+ ThermalUnitConverter const converter(
+ (T) 1.0 / N, // physDeltaX
+ (T) 1.0 / N * 1.0 / 1e-3 * (tau - 0.5) / 3 / N, // physDeltaT
+ (T) 1.0, // charPhysLength
+ (T) sqrt( 9.81 * Ra * 1e-3 * 1e-3 / Pr / 9.81 / (Thot - Tcold) / pow(1.0, 3) * (Thot - Tcold) * 1.0 ), // charPhysVelocity
+ (T) 1e-3, // physViscosity
+ (T) 1.0, // physDensity
+ (T) 0.03, // physThermalConductivity
+ (T) Pr * 0.03 / 1e-3 / 1.0, // physSpecificHeatCapacity
+ (T) Ra * 1e-3 * 1e-3 / Pr / 9.81 / (Thot - Tcold) / pow(1.0, 3), // physThermalExpansionCoefficient
+ (T) Tcold, // charPhysLowTemperature
+ (T) Thot // charPhysHighTemperature
+ );
+ converter.print();
+
+ /// === 2nd Step: Prepare Geometry ===
+ lz = converter.getPhysDeltaX() * 3.; // depth of the channel
+ std::vector extend(3,T());
+ extend[0] = lx;
+ extend[1] = ly;
+ extend[2] = lz;
+ std::vector origin(3,T());
+ IndicatorCuboid3D cuboid(extend, origin);
+
+ /// Instantiation of a cuboidGeometry with weights
+#ifdef PARALLEL_MODE_MPI
+ const int noOfCuboids = singleton::mpi().getSize();
+#else
+ const int noOfCuboids = 7;
+#endif
+ CuboidGeometry3D cuboidGeometry(cuboid, converter.getPhysDeltaX(), noOfCuboids);
+ cuboidGeometry.setPeriodicity(true,false, true);
+
+ /// Instantiation of a loadBalancer
+ HeuristicLoadBalancer loadBalancer(cuboidGeometry);
+
+ /// Instantiation of a superGeometry
+ SuperGeometry3D superGeometry(cuboidGeometry, loadBalancer, 2);
+
+ prepareGeometry(superGeometry, converter);
+
+ /// === 3rd Step: Prepare Lattice ===
+
+ SuperLattice3D ADlattice(superGeometry);
+ SuperLattice3D NSlattice(superGeometry);
+
+ sOnLatticeBoundaryCondition3D NSboundaryCondition(NSlattice);
+ createLocalBoundaryCondition3D(NSboundaryCondition);
+
+ sOnLatticeBoundaryCondition3D TboundaryCondition(ADlattice);
+ createAdvectionDiffusionBoundaryCondition3D(TboundaryCondition);
+
+ ForcedBGKdynamics NSbulkDynamics(
+ converter.getLatticeRelaxationFrequency(),
+ instances::getBulkMomenta());
+
+ AdvectionDiffusionBGKdynamics TbulkDynamics (
+ converter.getLatticeThermalRelaxationFrequency(),
+ instances::getAdvectionDiffusionBulkMomenta()
+ );
+
+ // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
+ // This coupling must be necessarily be put on the Navier-Stokes lattice!!
+ // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!//
+
+ /* int nx = converter.numCells(lx) + 1;
+ int ny = converter.numCells(ly) + 1;
+ int nz = converter.numCells(lz) + 1;
+ */
+ std::vector dir{0.0, 1.0, 0.0};
+
+ T boussinesqForcePrefactor = 9.81 / converter.getConversionFactorVelocity() * converter.getConversionFactorTime() *
+ converter.getCharPhysTemperatureDifference() * converter.getPhysThermalExpansionCoefficient();
+
+ NavierStokesAdvectionDiffusionCouplingGenerator3D
+ coupling(0, converter.getLatticeLength(lx), 0, converter.getLatticeLength(ly), 0, converter.getLatticeLength(lz),
+ boussinesqForcePrefactor, converter.getLatticeTemperature(Tcold), 1., dir);
+
+ NSlattice.addLatticeCoupling(coupling, ADlattice);
+
+ prepareLattice(converter,
+ NSlattice, ADlattice,
+ NSbulkDynamics, TbulkDynamics,
+ NSboundaryCondition, TboundaryCondition, superGeometry );
+
+
+ /// === 4th Step: Main Loop with Timer ===
+ Timer timer(converter.getLatticeTime(maxPhysT), superGeometry.getStatistics().getNvoxel() );
+ timer.start();
+
+ util::ValueTracer converge(converter.getLatticeTime(1.0),epsilon);
+ for (int iT = 0; iT < converter.getLatticeTime(maxPhysT); ++iT) {
+
+ if (converge.hasConverged()) {
+ clout << "Simulation converged." << endl;
+ getResults(converter, NSlattice, ADlattice, iT, superGeometry, timer, converge.hasConverged());
+ break;
+ }
+
+ /// === 5th Step: Definition of Initial and Boundary Conditions ===
+ setBoundaryValues(converter, NSlattice, ADlattice, iT, superGeometry);
+
+ /// === 6th Step: Collide and Stream Execution ===
+
+ NSlattice.collideAndStream();
+
+ NSlattice.executeCoupling();
+ ADlattice.collideAndStream();
+
+ /// === 7th Step: Computation and Output of the Results ===
+ getResults(converter, NSlattice, ADlattice, iT, superGeometry, timer, converge.hasConverged());
+ converge.takeValue(ADlattice.getStatistics().getAverageEnergy());
+ }
+
+ timer.stop();
+ timer.printSummary();
+}
--
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