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/core/powerLawUnitConverter.hh | 218 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 218 insertions(+) create mode 100644 src/core/powerLawUnitConverter.hh (limited to 'src/core/powerLawUnitConverter.hh') diff --git a/src/core/powerLawUnitConverter.hh b/src/core/powerLawUnitConverter.hh new file mode 100644 index 0000000..309196a --- /dev/null +++ b/src/core/powerLawUnitConverter.hh @@ -0,0 +1,218 @@ +/* This file is part of the OpenLB library + * + * Copyright (C) 2017-2018 Max Gaedtke, Albert Mink, Davide Dapelo + * 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 PL_UNITCONVERTER_HH +#define PL_UNITCONVERTER_HH + +#include +#include +#include +#include "core/singleton.h" +#include "io/fileName.h" + +/// All OpenLB code is contained in this namespace. +namespace olb { + +template +void PowerLawUnitConverter::print() const +{ + clout << "----------------- UnitConverter information ------------------" << std::endl; + clout << "-- Parameters:" << std::endl; + clout << "Resolution: N= " << this->getResolution() << std::endl; + clout << "DESCRIPTOR velocity: latticeU= " << this->getCharLatticeVelocity() << std::endl; + clout << "DESCRIPTOR relaxation frequency: omega= " << this->getLatticeRelaxationFrequency( ) << std::endl; + clout << "DESCRIPTOR relaxation time: tau= " << this->getLatticeRelaxationTime() << std::endl; + clout << "Characteristical length(m): charL= " << this->getCharPhysLength() << std::endl; + clout << "Characteristical speed(m/s): charU= " << this->getCharPhysVelocity() << std::endl; + clout << "Phys. char kinematic visco(m^2/s): charNu= " << this->getPhysViscosity() << std::endl; + clout << "Phys. consistency coeff(m^2 s^(n-2)): charM= " << this->getPhysConsistencyCoeff() << std::endl; + clout << "Power-law index: n= " << this->getPowerLawIndex() << std::endl; + clout << "Phys. density(kg/m^d): charRho= " << this->getPhysDensity() << std::endl; + clout << "Characteristical pressure(N/m^2): charPressure= " << this->getCharPhysPressure() << std::endl; + clout << "Reynolds number: reynoldsNumber= " << this->getReynoldsNumber() << std::endl; + + clout << std::endl; + clout << "-- Conversion factors:" << std::endl; + clout << "Voxel length(m): physDeltaX= " << this->getConversionFactorLength() << std::endl; + clout << "Time step(s): physDeltaT= " << this->getConversionFactorTime() << std::endl; + clout << "Velocity factor(m/s): physVelocity= " << this->getConversionFactorVelocity() << std::endl; + clout << "Density factor(kg/m^3): physDensity= " << this->getConversionFactorDensity() << std::endl; + clout << "Mass factor(kg): physMass= " << this->getConversionFactorMass() << std::endl; + clout << "Viscosity factor(m^2/s): physViscosity= " << this->getConversionFactorViscosity() << std::endl; + clout << "Force factor(N): physForce= " << this->getConversionFactorForce() << std::endl; + clout << "Pressure factor(N/m^2): physPressure= " << this->getConversionFactorPressure() << std::endl; + + clout << "--------------------------------------------------------------" << std::endl; + +} + +template +void PowerLawUnitConverter::write(std::string const& fileName) const +{ + std::string dataFile = singleton::directories().getLogOutDir() + fileName + ".dat"; + + if (singleton::mpi().isMainProcessor()) + { + std::ofstream fout; + fout.open(dataFile.c_str(), std::ios::trunc); + + fout << "UnitConverter information\n\n"; + fout << "----------------- UnitConverter information ------------------\n"; + fout << "-- Parameters:" << std::endl; + fout << "Resolution: N= " << this->getResolution() << "\n"; + fout << "DESCRIPTOR velocity: latticeU= " << this->getCharLatticeVelocity() << "\n"; + fout << "DESCRIPTOR relaxation frequency: omega= " << this->getLatticeRelaxationFrequency( ) << std::endl; + fout << "DESCRIPTOR relaxation time: tau= " << this->getLatticeRelaxationTime() << "\n"; + fout << "Characteristical length(m): charL= " << this->getCharPhysLength() << "\n"; + fout << "Characteristical speed(m/s): charU= " << this->getCharPhysVelocity() << "\n"; + fout << "Phys. char kinematic visco(m^2/s): charNu= " << this->getPhysViscosity() << std::endl; + fout << "Phys. consistency coeff(m^2 s^(n-2)): charM= " << this->getPhysConsistencyCoeff() << std::endl; + fout << "Power-law index: n= " << this->getPowerLawIndex() << std::endl; + fout << "Phys. density(kg/m^d): charRho= " << this->getPhysDensity() << "\n"; + fout << "Characteristical pressure(N/m^2): charPressure= " << this->getCharPhysPressure() << "\n"; + fout << "Reynolds number: reynoldsNumber= " << this->getReynoldsNumber() << std::endl; + fout << "\n"; + fout << "-- Conversion factors:" << "\n"; + fout << "Voxel length(m): physDeltaX= " << this->getConversionFactorLength() << std::endl; + fout << "Time step(s): physDeltaT= " << this->getConversionFactorTime() << "\n"; + fout << "Velocity factor(m/s): physVelocity= " << this->getConversionFactorVelocity() << "\n"; + fout << "Density factor(kg/m^3): physDensity= " << this->getConversionFactorDensity() << "\n"; + fout << "Mass factor(kg): physMass= " << this->getConversionFactorMass() << "\n"; + fout << "Viscosity factor(m^2/s): physViscosity= " << this->getConversionFactorViscosity() << "\n"; + fout << "Force factor(N): physForce= " << this->getConversionFactorForce() << "\n"; + fout << "Pressure factor(N/m^2): physPressure= " << this->getConversionFactorPressure() << "\n"; + + fout << "--------------------------------------------------------------" << "\n"; + + fout.close(); + } +} + +template +PowerLawUnitConverter* createPowerLawUnitConverter(XMLreader const& params) +{ + OstreamManager clout(std::cout,"createUnitConverter"); + params.setWarningsOn(false); + + T physDeltaX; + T physDeltaT; + + T charPhysLength; + T charPhysVelocity; + T physViscosity; + T physConsistencyCoeff; + T powerLawIndex; + T physDensity; + T charPhysPressure = 0; + + int resolution; + T latticeRelaxationTime; + T charLatticeVelocity; + + // params[parameter].read(value) sets the value or returns false if the parameter can not be found + params["Application"]["PhysParameters"]["CharPhysLength"].read(charPhysLength); + params["Application"]["PhysParameters"]["CharPhysVelocity"].read(charPhysVelocity); + params["Application"]["PhysParameters"]["PhysConsistencyCoeff"].read(physConsistencyCoeff); + params["Application"]["PhysParameters"]["powerLawIndex"].read(powerLawIndex); + params["Application"]["PhysParameters"]["PhysDensity"].read(physDensity); + params["Application"]["PhysParameters"]["CharPhysPressure"].read(charPhysPressure); + + physViscosity = physConsistencyCoeff * pow(charPhysVelocity / (2*charPhysLength), powerLawIndex-1); + + if (!params["Application"]["Discretization"]["PhysDeltaX"].read(physDeltaX,false)) { + if (!params["Application"]["Discretization"]["Resolution"].read(resolution,false)) { + if (!params["Application"]["Discretization"]["CharLatticeVelocity"].read(charLatticeVelocity,false)) { + // NOT found physDeltaX, resolution or charLatticeVelocity + clout << "Error: Have not found PhysDeltaX, Resolution or CharLatticeVelocity in XML file." + << std::endl; + exit (1); + } + else { + // found charLatticeVelocity + if (params["Application"]["Discretization"]["PhysDeltaT"].read(physDeltaT,false)) { + physDeltaX = charPhysVelocity / charLatticeVelocity * physDeltaT; + } + else if (params["Application"]["Discretization"]["LatticeRelaxationTime"].read(latticeRelaxationTime,false)) { + physDeltaX = physViscosity * charLatticeVelocity / charPhysVelocity * descriptors::invCs2() / (latticeRelaxationTime - 0.5); + } + } + } + else { + // found resolution + physDeltaX = charPhysLength / resolution; + } + } + // found physDeltaX + if (!params["Application"]["Discretization"]["PhysDeltaT"].read(physDeltaT,false)) { + if (!params["Application"]["Discretization"]["LatticeRelaxationTime"].read(latticeRelaxationTime,false)) { + if (!params["Application"]["Discretization"]["CharLatticeVelocity"].read(charLatticeVelocity,false)) { + // NOT found physDeltaT, latticeRelaxationTime and charLatticeVelocity + clout << "Error: Have not found PhysDeltaT, LatticeRelaxationTime or CharLatticeVelocity in XML file." + << std::endl; + exit (1); + } + else { + // found charLatticeVelocity + physDeltaT = charLatticeVelocity / charPhysVelocity * physDeltaX; + } + } + else { + // found latticeRelaxationTime + physDeltaT = (latticeRelaxationTime - 0.5) / descriptors::invCs2() * physDeltaX * physDeltaX / physViscosity; + } + } + + return new PowerLawUnitConverter(physDeltaX, physDeltaT, charPhysLength, charPhysVelocity, physConsistencyCoeff, powerLawIndex, physDensity, charPhysPressure); +} + +/////////////////////////////////////////////////////////////////////////////////////////////////// +/* +template +constexpr PowerLawUnitConverterFrom_Resolution_RelaxationTime_Reynolds_PLindex:: +PowerLawUnitConverterFrom_Resolution_RelaxationTime_Reynolds_PLindex( + int resolution, + T latticeRelaxationTime, + T charPhysLength, + T charPhysVelocity, + T Re, + T powerLawIndex, + T physDensity, + T charPhysPressure) +{ + T physDeltaX = (charPhysLength/resolution); + T physConsistencyCoeff = charPhysLength * charPhysVelocity * pow( charPhysVelocity / ( 2 * charPhysLength ), 1 - powerLawIndex ) / Re; + T physViscosity = physConsistencyCoeff * pow( charPhysVelocity / (2 * charPhysLength ), powerLawIndex - 1 ); + T physDeltaT = (latticeRelaxationTime - 0.5) / descriptors::invCs2() * pow((charPhysLength/resolution),2) / physViscosity; + +PowerLawUnitConverter( physDeltaX, physDeltaT, charPhysLength, charPhysVelocity, + physConsistencyCoeff, powerLawIndex, physDensity, charPhysPressure ); +} +*/ + + + + +} // namespace olb + +#endif -- cgit v1.2.3