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ENH: Added new heat transfer coefficient function object
Computes the heat transfer coefficient [W/m2/K] using a run-time selectable model: - ReynoldsAnalogy - fixedReferenceTemperature - localReferenceTemperature
This commit is contained in:
114
src/functionObjects/field/heatTransferCoeff/heatTransferCoeff.C
Normal file
114
src/functionObjects/field/heatTransferCoeff/heatTransferCoeff.C
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@ -0,0 +1,114 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
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||||
\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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||||
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\*---------------------------------------------------------------------------*/
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#include "heatTransferCoeff.H"
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#include "dictionary.H"
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#include "heatTransferCoeffModel.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace functionObjects
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{
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defineTypeNameAndDebug(heatTransferCoeff, 0);
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addToRunTimeSelectionTable(functionObject, heatTransferCoeff, dictionary);
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}
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}
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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bool Foam::functionObjects::heatTransferCoeff::calc()
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{
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volScalarField& htc = mesh_.lookupObjectRef<volScalarField>(resultName_);
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htcModelPtr_->calc(htc);
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return true;
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::functionObjects::heatTransferCoeff::heatTransferCoeff
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(
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const word& name,
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const Time& runTime,
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const dictionary& dict
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)
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:
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fieldExpression(name, runTime, dict),
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htcModelPtr_()
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{
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read(dict);
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setResultName(typeName, name + ":htc:" + htcModelPtr_->type());
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volScalarField* heatTransferCoeffPtr
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(
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new volScalarField
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(
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IOobject
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(
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resultName_,
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mesh_.time().timeName(),
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mesh_,
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IOobject::NO_READ,
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IOobject::NO_WRITE
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),
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mesh_,
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dimensionedScalar("0", dimPower/dimArea/dimTemperature, 0.0)
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)
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);
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mesh_.objectRegistry::store(heatTransferCoeffPtr);
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}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::functionObjects::heatTransferCoeff::~heatTransferCoeff()
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::functionObjects::heatTransferCoeff::read(const dictionary& dict)
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{
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if (fieldExpression::read(dict))
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{
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htcModelPtr_ = heatTransferCoeffModel::New(dict, mesh_, fieldName_);
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htcModelPtr_->read(dict);
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return true;
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}
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return false;
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}
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// ************************************************************************* //
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199
src/functionObjects/field/heatTransferCoeff/heatTransferCoeff.H
Normal file
199
src/functionObjects/field/heatTransferCoeff/heatTransferCoeff.H
Normal file
@ -0,0 +1,199 @@
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/*---------------------------------------------------------------------------*\
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========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
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Class
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Foam::functionObjects::heatTransferCoeff
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Group
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grpFieldFunctionObjects
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Description
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This function object calculates and writes the heat transfer coefficient
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as a volScalarField for a set of patches.
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The field is stored on the mesh database so that it can be retrieved and
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used for other applications. Heat transfer coefficient, htc [W/m2/K]
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can be evaluated using one of the following modes:
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- ReynoldsAnalogy: Reynold's analogy
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- localReferenceTemperature: local reference temperature
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- fixedReferenceTemperature: specified reference temperature
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Usage
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Example usage for mode 'ReynoldsAnalogy' for incompressible case
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\verbatim
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htc
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{
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type heatTransferCoeff;
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libs ("libfieldFunctionObjects.so");
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field T;
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patches ("walls.*");
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htcModel ReynoldsAnalogy;
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UInf (20 0 0);
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Cp CpInf;
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CpInf 1000;
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rho rhoInf;
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rhoInf 1.2;
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}
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\endverbatim
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Example usage for mode 'ReynoldsAnalogy' for compressible case
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\verbatim
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htc
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{
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type heatTransferCoeff;
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libs ("libfieldFunctionObjects.so");
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field T;
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patches ("walls.*");
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htcModel ReynoldsAnalogy;
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UInf (20 0 0);
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}
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\endverbatim
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Example usage for mode 'localReferenceTemperature' for compressible case
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\verbatim
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htc
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{
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type heatTransferCoeff;
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libs ("libfieldFunctionObjects.so");
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field T;
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patches ("walls.*");
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htcModel local;
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}
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\endverbatim
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Example usage for mode 'fixedReferenceTemperature' for compressible case
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\verbatim
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htc
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{
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type heatTransferCoeff;
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libs ("libfieldFunctionObjects.so");
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field T;
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patches ("walls.*");
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htcModel local;
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TRef 300;
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}
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\endverbatim
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See also
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Foam::functionObjects::fieldExpression
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Foam::heatTransferCoeffModels::fixedReferenceTemperature
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Foam::heatTransferCoeffModels::localReferenceTemperature
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SourceFiles
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heatTransferCoeff.C
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\*---------------------------------------------------------------------------*/
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#ifndef functionObjects_heatTransferCoeff_H
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#define functionObjects_heatTransferCoeff_H
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#include "fieldExpression.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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class heatTransferCoeffModel;
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namespace functionObjects
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{
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/*---------------------------------------------------------------------------*\
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Class heatTransferCoeff Declaration
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\*---------------------------------------------------------------------------*/
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class heatTransferCoeff
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:
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public fieldExpression
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{
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private:
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// Private data
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//- Heat transfer coefficient model
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autoPtr<heatTransferCoeffModel> htcModelPtr_;
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// Private Member Functions
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//- Disallow default bitwise copy construct
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heatTransferCoeff(const heatTransferCoeff&) = delete;
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//- Disallow default bitwise assignment
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void operator=(const heatTransferCoeff&) = delete;
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protected:
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//- Calculate the heat transfer coefficient field and return true
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// if successful
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virtual bool calc();
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public:
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//- Runtime type information
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TypeName("heatTransferCoeff");
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// Constructors
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//- Construct for given objectRegistry and dictionary.
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// Allow the possibility to load fields from files
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heatTransferCoeff
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(
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const word& name,
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const Time& runTime,
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const dictionary& dict
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);
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//- Destructor
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virtual ~heatTransferCoeff();
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// Member Functions
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//- Read the heatTransferCoeff data
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virtual bool read(const dictionary&);
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace functionObjects
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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@ -0,0 +1,271 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
\*---------------------------------------------------------------------------*/
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||||
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#include "ReynoldsAnalogy.H"
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#include "fluidThermo.H"
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#include "turbulentTransportModel.H"
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#include "turbulentFluidThermoModel.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace heatTransferCoeffModels
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{
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defineTypeNameAndDebug(ReynoldsAnalogy, 0);
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addToRunTimeSelectionTable
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(
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heatTransferCoeffModel,
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ReynoldsAnalogy,
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dictionary
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);
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}
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}
|
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// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
|
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Foam::tmp<Foam::Field<Foam::scalar>>
|
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Foam::heatTransferCoeffModels::ReynoldsAnalogy::rho(const label patchi) const
|
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{
|
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if (rhoName_ == "rhoInf")
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{
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const label n = mesh_.boundary()[patchi].size();
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return tmp<Field<scalar>>(new Field<scalar>(n, rhoRef_));
|
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}
|
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else if (mesh_.foundObject<volScalarField>(rhoName_, false))
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{
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const volScalarField& rho =
|
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mesh_.lookupObject<volScalarField>(rhoName_);
|
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return rho.boundaryField()[patchi];
|
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}
|
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else
|
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{
|
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FatalErrorInFunction
|
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<< "Unable to set rho for patch " << patchi
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<< exit(FatalError);
|
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}
|
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|
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return tmp<Field<scalar>>(nullptr);
|
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}
|
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|
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|
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Foam::tmp<Foam::Field<Foam::scalar>>
|
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Foam::heatTransferCoeffModels::ReynoldsAnalogy::Cp(const label patchi) const
|
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{
|
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if (CpName_ == "CpInf")
|
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{
|
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const label n = mesh_.boundary()[patchi].size();
|
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return tmp<Field<scalar>>(new Field<scalar>(n, CpRef_));
|
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}
|
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else if (mesh_.foundObject<fluidThermo>(fluidThermo::typeName))
|
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{
|
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const fluidThermo& thermo =
|
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mesh_.lookupObject<fluidThermo>(fluidThermo::typeName);
|
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|
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const scalarField& pp = thermo.p().boundaryField()[patchi];
|
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const scalarField& Tp = thermo.T().boundaryField()[patchi];
|
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|
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return thermo.Cp(pp, Tp, patchi);
|
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}
|
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else
|
||||
{
|
||||
FatalErrorInFunction
|
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<< "Unable to set Cp for patch " << patchi
|
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<< exit(FatalError);
|
||||
}
|
||||
|
||||
return tmp<Field<scalar>>(nullptr);
|
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}
|
||||
|
||||
|
||||
Foam::tmp<Foam::volSymmTensorField>
|
||||
Foam::heatTransferCoeffModels::ReynoldsAnalogy::devReff() const
|
||||
{
|
||||
typedef compressible::turbulenceModel cmpTurbModel;
|
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typedef incompressible::turbulenceModel icoTurbModel;
|
||||
|
||||
if (mesh_.foundObject<cmpTurbModel>(cmpTurbModel::propertiesName))
|
||||
{
|
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const cmpTurbModel& turb =
|
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mesh_.lookupObject<cmpTurbModel>(cmpTurbModel::propertiesName);
|
||||
|
||||
return turb.devRhoReff()/turb.rho();
|
||||
}
|
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else if (mesh_.foundObject<icoTurbModel>(icoTurbModel::propertiesName))
|
||||
{
|
||||
const incompressible::turbulenceModel& turb =
|
||||
mesh_.lookupObject<icoTurbModel>(icoTurbModel::propertiesName);
|
||||
|
||||
return turb.devReff();
|
||||
}
|
||||
else if (mesh_.foundObject<fluidThermo>(fluidThermo::dictName))
|
||||
{
|
||||
const fluidThermo& thermo =
|
||||
mesh_.lookupObject<fluidThermo>(fluidThermo::dictName);
|
||||
|
||||
const volVectorField& U = mesh_.lookupObject<volVectorField>(UName_);
|
||||
|
||||
return -thermo.nu()*dev(twoSymm(fvc::grad(U)));
|
||||
}
|
||||
else if (mesh_.foundObject<transportModel>("transportProperties"))
|
||||
{
|
||||
const transportModel& laminarT =
|
||||
mesh_.lookupObject<transportModel>("transportProperties");
|
||||
|
||||
const volVectorField& U = mesh_.lookupObject<volVectorField>(UName_);
|
||||
|
||||
return -laminarT.nu()*dev(twoSymm(fvc::grad(U)));
|
||||
}
|
||||
else if (mesh_.foundObject<dictionary>("transportProperties"))
|
||||
{
|
||||
const dictionary& transportProperties =
|
||||
mesh_.lookupObject<dictionary>("transportProperties");
|
||||
|
||||
dimensionedScalar nu(transportProperties.lookup("nu"));
|
||||
|
||||
const volVectorField& U = mesh_.lookupObject<volVectorField>(UName_);
|
||||
|
||||
return -nu*dev(twoSymm(fvc::grad(U)));
|
||||
}
|
||||
else
|
||||
{
|
||||
FatalErrorInFunction
|
||||
<< "No valid model for viscous stress calculation"
|
||||
<< exit(FatalError);
|
||||
|
||||
return volSymmTensorField::null();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Foam::tmp<Foam::FieldField<Foam::Field, Foam::scalar>>
|
||||
Foam::heatTransferCoeffModels::ReynoldsAnalogy::Cf() const
|
||||
{
|
||||
const volVectorField& U = mesh_.lookupObject<volVectorField>(UName_);
|
||||
const volVectorField::Boundary& Ubf = U.boundaryField();
|
||||
|
||||
tmp<FieldField<Field, scalar>> tCf
|
||||
(
|
||||
new FieldField<Field, scalar>(Ubf.size())
|
||||
);
|
||||
|
||||
FieldField<Field, scalar>& Cf = tCf.ref();
|
||||
|
||||
forAll(Cf, patchi)
|
||||
{
|
||||
Cf.set(patchi, new Field<scalar>(Ubf[patchi].size(), 0));
|
||||
}
|
||||
|
||||
const volSymmTensorField R(devReff());
|
||||
const volSymmTensorField::Boundary& Rbf = R.boundaryField();
|
||||
|
||||
for (label patchi : patchSet_)
|
||||
{
|
||||
const fvPatchVectorField& Up = Ubf[patchi];
|
||||
|
||||
const symmTensorField& Rp = Rbf[patchi];
|
||||
|
||||
const vectorField nHat(Up.patch().nf());
|
||||
|
||||
const scalarField tauByRhop(mag(nHat & Rp));
|
||||
|
||||
Cf[patchi] = 2*tauByRhop/magSqr(URef_);
|
||||
}
|
||||
|
||||
return tCf;
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
||||
|
||||
Foam::heatTransferCoeffModels::ReynoldsAnalogy::ReynoldsAnalogy
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
)
|
||||
:
|
||||
heatTransferCoeffModel(dict, mesh, TName),
|
||||
UName_("U"),
|
||||
URef_(vector::zero),
|
||||
rhoName_("rho"),
|
||||
rhoRef_(0.0),
|
||||
CpName_("Cp"),
|
||||
CpRef_(0.0)
|
||||
{
|
||||
read(dict);
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
|
||||
|
||||
bool Foam::heatTransferCoeffModels::ReynoldsAnalogy::read
|
||||
(
|
||||
const dictionary& dict
|
||||
)
|
||||
{
|
||||
if (heatTransferCoeffModel::read(dict))
|
||||
{
|
||||
dict.lookup("UInf") >> URef_;
|
||||
|
||||
dict.readIfPresent("Cp", CpName_);
|
||||
if (CpName_ == "CpInf")
|
||||
{
|
||||
dict.lookup("CpInf") >> CpRef_;
|
||||
}
|
||||
|
||||
dict.readIfPresent("rho", rhoName_);
|
||||
if (rhoName_ == "rhoInf")
|
||||
{
|
||||
dict.lookup("rhoInf") >> rhoRef_;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
void Foam::heatTransferCoeffModels::ReynoldsAnalogy::htc(volScalarField& htc)
|
||||
{
|
||||
const FieldField<Field, scalar> CfBf(Cf());
|
||||
const scalar magU = mag(URef_);
|
||||
|
||||
volScalarField::Boundary& htcBf = htc.boundaryFieldRef();
|
||||
forAllConstIters(patchSet_, iter)
|
||||
{
|
||||
label patchi = iter.key();
|
||||
const scalarField rhop(rho(patchi));
|
||||
const scalarField Cpp(Cp(patchi));
|
||||
|
||||
htcBf[patchi] = 0.5*rhop*Cpp*magU*CfBf[patchi];
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// ************************************************************************* //
|
||||
@ -0,0 +1,182 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
Class
|
||||
Foam::heatTransferCoeffModels::ReynoldsAnalogy
|
||||
|
||||
Description
|
||||
Heat transfer coefficient calculation based on Reynolds Analogy
|
||||
|
||||
The heat transfer coefficient is derived from the skin friction
|
||||
coefficient:
|
||||
|
||||
\f[
|
||||
C_f = \frac{\tau_w}{0.5 \rho_\infty |U|^2}
|
||||
\f]
|
||||
|
||||
as:
|
||||
|
||||
\f[
|
||||
h = 0.5 \rho_\infty \C_{p,\infty} |U_{\infty}| C_f
|
||||
\f]
|
||||
|
||||
Usage
|
||||
Example of function object specification:
|
||||
\verbatim
|
||||
type heatTransferCoeff;
|
||||
libs ("libfieldFunctionObjects.so");
|
||||
...
|
||||
htcModel ReynoldsAnalogy;
|
||||
UInf (20 0 0);
|
||||
Cp CpInf;
|
||||
CpInf 1005;
|
||||
...
|
||||
\endverbatim
|
||||
|
||||
Where the entries comprise:
|
||||
\table
|
||||
Property | Description | Required | Default value
|
||||
type | type name: heatTransferCoeff | yes |
|
||||
htcModel | selected htc model | yes |
|
||||
UInf | reference velocity | yes |
|
||||
Cp | specific heat capacity field name | no |
|
||||
rho | density field name | no |
|
||||
\endtable
|
||||
|
||||
Note:
|
||||
- to use a reference \c Cp, set \c Cp to \c CpInf
|
||||
- to use a reference \c rho, set \c rho to \c rhoInf
|
||||
|
||||
SourceFiles
|
||||
ReynoldsAnalogy.C
|
||||
|
||||
SeeAlso
|
||||
Foam::heatTransferCoeffModel
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifndef heatTransferCoeffModels_ReynoldsAnalogy_H
|
||||
#define heatTransferCoeffModels_ReynoldsAnalogy_H
|
||||
|
||||
#include "heatTransferCoeffModel.H"
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
namespace Foam
|
||||
{
|
||||
namespace heatTransferCoeffModels
|
||||
{
|
||||
|
||||
/*---------------------------------------------------------------------------*\
|
||||
Class ReynoldsAnalogy Declaration
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
class ReynoldsAnalogy
|
||||
:
|
||||
public heatTransferCoeffModel
|
||||
{
|
||||
// Private Member Functions
|
||||
|
||||
//- Disallow copy construct
|
||||
ReynoldsAnalogy(const ReynoldsAnalogy&) = delete;
|
||||
|
||||
//- Disallow default bitwise assignment
|
||||
void operator=(const ReynoldsAnalogy&) = delete;
|
||||
|
||||
|
||||
protected:
|
||||
|
||||
// Protected data
|
||||
|
||||
//- Name of velocity field
|
||||
word UName_;
|
||||
|
||||
//- Reference velocity
|
||||
vector URef_;
|
||||
|
||||
//- Name of density field
|
||||
word rhoName_;
|
||||
|
||||
//- Reference density
|
||||
scalar rhoRef_;
|
||||
|
||||
//- Name of specific heat capacity field
|
||||
word CpName_;
|
||||
|
||||
//- Reference specific heat capacity
|
||||
scalar CpRef_;
|
||||
|
||||
|
||||
// Protected Member Functions
|
||||
|
||||
virtual tmp<Field<scalar>> rho(const label patchi) const;
|
||||
|
||||
virtual tmp<Field<scalar>> Cp(const label patchi) const;
|
||||
|
||||
virtual tmp<volSymmTensorField> devReff() const;
|
||||
|
||||
tmp<FieldField<Field, scalar>> Cf() const;
|
||||
|
||||
//- Set the heat transfer coefficient
|
||||
virtual void htc(volScalarField& htc);
|
||||
|
||||
|
||||
public:
|
||||
|
||||
//- Runtime type information
|
||||
TypeName("ReynoldsAnalogy");
|
||||
|
||||
|
||||
// Constructors
|
||||
|
||||
//- Construct from components
|
||||
ReynoldsAnalogy
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
);
|
||||
|
||||
|
||||
//- Destructor
|
||||
virtual ~ReynoldsAnalogy()
|
||||
{}
|
||||
|
||||
|
||||
// Member Functions
|
||||
|
||||
//- Read from dictionary
|
||||
virtual bool read(const dictionary& dict);
|
||||
};
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
} // End namespace heatTransferCoeffModels
|
||||
} // End namespace Foam
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
#endif
|
||||
|
||||
// ************************************************************************* //
|
||||
@ -0,0 +1,99 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#include "fixedReferenceTemperature.H"
|
||||
|
||||
#include "addToRunTimeSelectionTable.H"
|
||||
|
||||
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
|
||||
|
||||
namespace Foam
|
||||
{
|
||||
namespace heatTransferCoeffModels
|
||||
{
|
||||
defineTypeNameAndDebug(fixedReferenceTemperature, 0);
|
||||
addToRunTimeSelectionTable
|
||||
(
|
||||
heatTransferCoeffModel,
|
||||
fixedReferenceTemperature,
|
||||
dictionary
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
||||
|
||||
Foam::heatTransferCoeffModels::fixedReferenceTemperature::fixedReferenceTemperature
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
)
|
||||
:
|
||||
heatTransferCoeffModel(dict, mesh, TName),
|
||||
TRef_(0)
|
||||
{
|
||||
read(dict);
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
|
||||
|
||||
bool Foam::heatTransferCoeffModels::fixedReferenceTemperature::read
|
||||
(
|
||||
const dictionary& dict
|
||||
)
|
||||
{
|
||||
if (heatTransferCoeffModel::read(dict))
|
||||
{
|
||||
dict.lookup("TRef") >> TRef_;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
void Foam::heatTransferCoeffModels::fixedReferenceTemperature::htc
|
||||
(
|
||||
volScalarField& htc
|
||||
)
|
||||
{
|
||||
const FieldField<Field, scalar> qBf(q());
|
||||
const volScalarField& T = mesh_.lookupObject<volScalarField>(TName_);
|
||||
const volScalarField::Boundary& Tbf = T.boundaryField();
|
||||
const scalar eps = ROOTVSMALL;
|
||||
|
||||
volScalarField::Boundary& htcBf = htc.boundaryFieldRef();
|
||||
forAllConstIters(patchSet_, iter)
|
||||
{
|
||||
label patchi = iter.key();
|
||||
htcBf[patchi] = qBf[patchi]/(TRef_ - Tbf[patchi] + eps);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// ************************************************************************* //
|
||||
@ -0,0 +1,145 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
Class
|
||||
Foam::heatTransferCoeffModels::fixedReferenceTemperature
|
||||
|
||||
Description
|
||||
Heat transfer coefficient calculation that employs a fixed reference
|
||||
temperature
|
||||
|
||||
The heat transfer coefficient is specified by:
|
||||
|
||||
\f[
|
||||
h = \frac{q}{T_{ref} - T_w}
|
||||
\f]
|
||||
|
||||
Usage
|
||||
Example of function object specification:
|
||||
\verbatim
|
||||
type heatTransferCoeff;
|
||||
libs ("libfieldFunctionObjects.so");
|
||||
...
|
||||
htcModel fixedReferenceTemperature;
|
||||
TRef 300;
|
||||
...
|
||||
\endverbatim
|
||||
|
||||
Where the entries comprise:
|
||||
\table
|
||||
Property | Description | Required | Default value
|
||||
type | type name: heatTransferCoeff | yes |
|
||||
htcModel | selected htc model | yes |
|
||||
TRef | reference temperature | yes |
|
||||
\endtable
|
||||
|
||||
SourceFiles
|
||||
fixedReferenceTemperature.C
|
||||
|
||||
SeeAlso
|
||||
Foam::heatTransferCoeffModel
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifndef heatTransferCoeffModels_fixedReferenceTemperature_H
|
||||
#define heatTransferCoeffModels_fixedReferenceTemperature_H
|
||||
|
||||
#include "heatTransferCoeffModel.H"
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
namespace Foam
|
||||
{
|
||||
namespace heatTransferCoeffModels
|
||||
{
|
||||
|
||||
/*---------------------------------------------------------------------------*\
|
||||
Class fixedReferenceTemperature Declaration
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
class fixedReferenceTemperature
|
||||
:
|
||||
public heatTransferCoeffModel
|
||||
{
|
||||
// Private Member Functions
|
||||
|
||||
//- Disallow copy construct
|
||||
fixedReferenceTemperature(const fixedReferenceTemperature&) = delete;
|
||||
|
||||
//- Disallow default bitwise assignment
|
||||
void operator=(const fixedReferenceTemperature&) = delete;
|
||||
|
||||
|
||||
protected:
|
||||
|
||||
// Protected data
|
||||
|
||||
//- Reference tempetaure
|
||||
scalar TRef_;
|
||||
|
||||
|
||||
// Protected Member Functions
|
||||
|
||||
//- Set the heat transfer coefficient
|
||||
virtual void htc(volScalarField& htc);
|
||||
|
||||
|
||||
public:
|
||||
|
||||
//- Runtime type information
|
||||
TypeName("fixedReferenceTemperature");
|
||||
|
||||
|
||||
// Constructors
|
||||
|
||||
//- Construct from components
|
||||
fixedReferenceTemperature
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
);
|
||||
|
||||
|
||||
//- Destructor
|
||||
virtual ~fixedReferenceTemperature()
|
||||
{}
|
||||
|
||||
|
||||
// Member Functions
|
||||
|
||||
//- Read from dictionary
|
||||
virtual bool read(const dictionary& dict);
|
||||
};
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
} // End namespace heatTransferCoeffModels
|
||||
} // End namespace Foam
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
#endif
|
||||
|
||||
// ************************************************************************* //
|
||||
@ -0,0 +1,154 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#include "heatTransferCoeffModel.H"
|
||||
#include "fvMesh.H"
|
||||
#include "fluidThermo.H"
|
||||
#include "turbulentTransportModel.H"
|
||||
#include "turbulentFluidThermoModel.H"
|
||||
|
||||
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
|
||||
|
||||
namespace Foam
|
||||
{
|
||||
defineTypeNameAndDebug(heatTransferCoeffModel, 0);
|
||||
defineRunTimeSelectionTable(heatTransferCoeffModel, dictionary);
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
|
||||
|
||||
Foam::tmp<Foam::FieldField<Foam::Field, Foam::scalar>>
|
||||
Foam::heatTransferCoeffModel::q() const
|
||||
{
|
||||
const volScalarField& T = mesh_.lookupObject<volScalarField>(TName_);
|
||||
const volScalarField::Boundary& Tbf = T.boundaryField();
|
||||
|
||||
tmp<FieldField<Field, scalar>> tq
|
||||
(
|
||||
new FieldField<Field, scalar>(Tbf.size())
|
||||
);
|
||||
|
||||
FieldField<Field, scalar>& q = tq.ref();
|
||||
|
||||
forAll(q, patchi)
|
||||
{
|
||||
q.set(patchi, new Field<scalar>(Tbf[patchi].size(), 0));
|
||||
}
|
||||
|
||||
typedef compressible::turbulenceModel cmpTurbModel;
|
||||
|
||||
if (mesh_.foundObject<cmpTurbModel>(cmpTurbModel::propertiesName))
|
||||
{
|
||||
const cmpTurbModel& turb =
|
||||
mesh_.lookupObject<cmpTurbModel>(cmpTurbModel::propertiesName);
|
||||
|
||||
const volScalarField& he = turb.transport().he();
|
||||
const volScalarField::Boundary& hebf = he.boundaryField();
|
||||
|
||||
const volScalarField alphaEff(turb.alphaEff());
|
||||
const volScalarField::Boundary& alphaEffbf = alphaEff.boundaryField();
|
||||
|
||||
for (label patchi : patchSet_)
|
||||
{
|
||||
q[patchi] = alphaEffbf[patchi]*hebf[patchi].snGrad();
|
||||
}
|
||||
}
|
||||
else if (mesh_.foundObject<fluidThermo>(fluidThermo::dictName))
|
||||
{
|
||||
const fluidThermo& thermo =
|
||||
mesh_.lookupObject<fluidThermo>(fluidThermo::dictName);
|
||||
|
||||
const volScalarField& he = thermo.he();
|
||||
const volScalarField::Boundary& hebf = he.boundaryField();
|
||||
|
||||
const volScalarField& alpha(thermo.alpha());
|
||||
const volScalarField::Boundary& alphabf = alpha.boundaryField();
|
||||
|
||||
for (label patchi : patchSet_)
|
||||
{
|
||||
q[patchi] = alphabf[patchi]*hebf[patchi].snGrad();
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
FatalErrorInFunction
|
||||
<< "Unable to find a valid thermo model to evaluate q"
|
||||
<< exit(FatalError);
|
||||
}
|
||||
|
||||
// Add radiative heat flux contribution if present
|
||||
if (mesh_.foundObject<volScalarField>(qrName_))
|
||||
{
|
||||
const volScalarField& qr = mesh_.lookupObject<volScalarField>(qrName_);
|
||||
const volScalarField::Boundary& qrbf = qr.boundaryField();
|
||||
|
||||
for (label patchi : patchSet_)
|
||||
{
|
||||
q[patchi] += qrbf[patchi];
|
||||
}
|
||||
}
|
||||
|
||||
return tq;
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
||||
|
||||
Foam::heatTransferCoeffModel::heatTransferCoeffModel
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
)
|
||||
:
|
||||
mesh_(mesh),
|
||||
TName_(TName),
|
||||
patchSet_(),
|
||||
qrName_("qr")
|
||||
{}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
|
||||
|
||||
bool Foam::heatTransferCoeffModel::read(const dictionary& dict)
|
||||
{
|
||||
const wordReList patchNames(dict.lookup("patches"));
|
||||
patchSet_ = mesh_.boundaryMesh().patchSet(patchNames);
|
||||
dict.readIfPresent("qr", qrName_);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
bool Foam::heatTransferCoeffModel::calc(volScalarField& result)
|
||||
{
|
||||
htc(result);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// ************************************************************************* //
|
||||
@ -0,0 +1,158 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
Namespace
|
||||
Foam::heatTransferCoeffModels
|
||||
|
||||
Description
|
||||
A namespace for various heat transfer coefficient model implementations.
|
||||
|
||||
Class
|
||||
Foam::heatTransferCoeffModel
|
||||
|
||||
Description
|
||||
An abstract base class for heat transfer coeffcient models.
|
||||
|
||||
SourceFiles
|
||||
heatTransferCoeffModel.C
|
||||
heatTransferCoeffModelNew.C
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifndef heatTransferCoeffModel_H
|
||||
#define heatTransferCoeffModel_H
|
||||
|
||||
#include "dictionary.H"
|
||||
#include "HashSet.H"
|
||||
#include "volFields.H"
|
||||
|
||||
#include "runTimeSelectionTables.H"
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
namespace Foam
|
||||
{
|
||||
|
||||
class fvMesh;
|
||||
|
||||
/*---------------------------------------------------------------------------*\
|
||||
Class heatTransferCoeffModel Declaration
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
class heatTransferCoeffModel
|
||||
{
|
||||
|
||||
// Private Member Functions
|
||||
|
||||
//- Disallow copy construct
|
||||
heatTransferCoeffModel(const heatTransferCoeffModel&) = delete;
|
||||
|
||||
//- Disallow default bitwise assignment
|
||||
void operator=(const heatTransferCoeffModel&) = delete;
|
||||
|
||||
|
||||
protected:
|
||||
|
||||
// Protected data
|
||||
|
||||
const fvMesh& mesh_;
|
||||
|
||||
const word TName_;
|
||||
|
||||
labelHashSet patchSet_;
|
||||
|
||||
word qrName_;
|
||||
|
||||
tmp<FieldField<Field, scalar>> q() const;
|
||||
|
||||
//- Set the heat transfer coefficient
|
||||
virtual void htc(volScalarField& htc) = 0;
|
||||
|
||||
|
||||
public:
|
||||
|
||||
//- Runtime type information
|
||||
TypeName("heatTransferCoeffModel");
|
||||
|
||||
|
||||
// Declare run-time constructor selection table
|
||||
|
||||
declareRunTimeSelectionTable
|
||||
(
|
||||
autoPtr,
|
||||
heatTransferCoeffModel,
|
||||
dictionary,
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
),
|
||||
(dict, mesh, TName)
|
||||
);
|
||||
|
||||
|
||||
// Selectors
|
||||
|
||||
//- Return a reference to the selected heat transfer coefficicent model
|
||||
static autoPtr<heatTransferCoeffModel> New
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
);
|
||||
|
||||
|
||||
// Constructors
|
||||
|
||||
//- Construct from components
|
||||
heatTransferCoeffModel
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
);
|
||||
|
||||
|
||||
//- Destructor
|
||||
virtual ~heatTransferCoeffModel()
|
||||
{}
|
||||
|
||||
|
||||
// Member Functions
|
||||
|
||||
//- Read from dictionary
|
||||
virtual bool read(const dictionary& dict);
|
||||
|
||||
virtual bool calc(volScalarField& result);
|
||||
};
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
} // End namespace Foam
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
#endif
|
||||
|
||||
// ************************************************************************* //
|
||||
@ -0,0 +1,59 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#include "heatTransferCoeffModel.H"
|
||||
#include "fvMesh.H"
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
Foam::autoPtr<Foam::heatTransferCoeffModel> Foam::heatTransferCoeffModel::New
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
)
|
||||
{
|
||||
const word modelType(dict.lookup("htcModel"));
|
||||
|
||||
Info<< "Selecting heat transfer coefficient model " << modelType << endl;
|
||||
|
||||
auto cstrIter = dictionaryConstructorTablePtr_->cfind(modelType);
|
||||
|
||||
if (!cstrIter.found())
|
||||
{
|
||||
FatalErrorInFunction
|
||||
<< "Unknown heatTransferCoeffModel type "
|
||||
<< modelType << nl << nl
|
||||
<< "Valid heatTransferCoeffModels :" << endl
|
||||
<< dictionaryConstructorTablePtr_->sortedToc()
|
||||
<< exit(FatalError);
|
||||
}
|
||||
|
||||
return autoPtr<heatTransferCoeffModel>(cstrIter()(dict, mesh, TName));
|
||||
}
|
||||
|
||||
|
||||
// ************************************************************************* //
|
||||
@ -0,0 +1,93 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#include "localReferenceTemperature.H"
|
||||
|
||||
#include "addToRunTimeSelectionTable.H"
|
||||
|
||||
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
|
||||
|
||||
namespace Foam
|
||||
{
|
||||
namespace heatTransferCoeffModels
|
||||
{
|
||||
defineTypeNameAndDebug(localReferenceTemperature, 0);
|
||||
addToRunTimeSelectionTable
|
||||
(
|
||||
heatTransferCoeffModel,
|
||||
localReferenceTemperature,
|
||||
dictionary
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
||||
|
||||
Foam::heatTransferCoeffModels::localReferenceTemperature::
|
||||
localReferenceTemperature
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
)
|
||||
:
|
||||
heatTransferCoeffModel(dict, mesh, TName)
|
||||
{
|
||||
read(dict);
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
|
||||
|
||||
bool Foam::heatTransferCoeffModels::localReferenceTemperature::read
|
||||
(
|
||||
const dictionary& dict
|
||||
)
|
||||
{
|
||||
return heatTransferCoeffModel::read(dict);
|
||||
}
|
||||
|
||||
|
||||
void Foam::heatTransferCoeffModels::localReferenceTemperature::htc
|
||||
(
|
||||
volScalarField& htc
|
||||
)
|
||||
{
|
||||
const FieldField<Field, scalar> qBf(q());
|
||||
const volScalarField& T = mesh_.lookupObject<volScalarField>(TName_);
|
||||
const volScalarField::Boundary& Tbf = T.boundaryField();
|
||||
const scalar eps = ROOTVSMALL;
|
||||
|
||||
volScalarField::Boundary& htcBf = htc.boundaryFieldRef();
|
||||
forAllConstIters(patchSet_, iter)
|
||||
{
|
||||
label patchi = iter.key();
|
||||
const scalarField Tc(Tbf[patchi].patchInternalField());
|
||||
htcBf[patchi] = qBf[patchi]/(Tc - Tbf[patchi] + eps);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// ************************************************************************* //
|
||||
@ -0,0 +1,137 @@
|
||||
/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM 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 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
Class
|
||||
Foam::heatTransferCoeffModels::localReferenceTemperature
|
||||
|
||||
Description
|
||||
Heat transfer coefficient calculation that employs the patch internal
|
||||
field as the reference temperature
|
||||
|
||||
The heat transfer coefficient is specified by:
|
||||
|
||||
\f[
|
||||
h = \frac{q}{T_c - T_w}
|
||||
\f]
|
||||
|
||||
Usage
|
||||
Example of function object specification:
|
||||
\verbatim
|
||||
type heatTransferCoeff;
|
||||
libs ("libfieldFunctionObjects.so");
|
||||
...
|
||||
htcModel localReferenceTemperature;
|
||||
...
|
||||
\endverbatim
|
||||
|
||||
Where the entries comprise:
|
||||
\table
|
||||
Property | Description | Required | Default value
|
||||
type | type name: heatTransferCoeff | yes |
|
||||
htcModel | selected htc model | yes |
|
||||
\endtable
|
||||
|
||||
SourceFiles
|
||||
localReferenceTemperature.C
|
||||
|
||||
SeeAlso
|
||||
Foam::heatTransferCoeffModel
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifndef heatTransferCoeffModels_localReferenceTemperature_H
|
||||
#define heatTransferCoeffModels_localReferenceTemperature_H
|
||||
|
||||
#include "heatTransferCoeffModel.H"
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
namespace Foam
|
||||
{
|
||||
namespace heatTransferCoeffModels
|
||||
{
|
||||
|
||||
/*---------------------------------------------------------------------------*\
|
||||
Class localReferenceTemperature Declaration
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
class localReferenceTemperature
|
||||
:
|
||||
public heatTransferCoeffModel
|
||||
{
|
||||
// Private Member Functions
|
||||
|
||||
//- Disallow copy construct
|
||||
localReferenceTemperature(const localReferenceTemperature&) = delete;
|
||||
|
||||
//- Disallow default bitwise assignment
|
||||
void operator=(const localReferenceTemperature&) = delete;
|
||||
|
||||
|
||||
protected:
|
||||
|
||||
// Protected Member Functions
|
||||
|
||||
//- Set the heat transfer coefficient
|
||||
virtual void htc(volScalarField& htc);
|
||||
|
||||
|
||||
public:
|
||||
|
||||
//- Runtime type information
|
||||
TypeName("localReferenceTemperature");
|
||||
|
||||
|
||||
// Constructors
|
||||
|
||||
//- Construct from components
|
||||
localReferenceTemperature
|
||||
(
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh,
|
||||
const word& TName
|
||||
);
|
||||
|
||||
|
||||
//- Destructor
|
||||
virtual ~localReferenceTemperature()
|
||||
{}
|
||||
|
||||
|
||||
// Member Functions
|
||||
|
||||
//- Read from dictionary
|
||||
virtual bool read(const dictionary& dict);
|
||||
};
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
} // End namespace heatTransferCoeffModels
|
||||
} // End namespace Foam
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
#endif
|
||||
|
||||
// ************************************************************************* //
|
||||
Reference in New Issue
Block a user