buoyancyEnergy.C

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    Copyright (C) 2015-2016 OpenFOAM Foundation
    Copyright (C) 2018-2020 OpenCFD Ltd.
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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.
 
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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "buoyancyEnergy.H"
#include "fvMatrices.H"
#include "gravityMeshObject.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
 
namespace Foam
{
namespace fv
{
    defineTypeNameAndDebug(buoyancyEnergy, 0);
    addToRunTimeSelectionTable(option, buoyancyEnergy, dictionary);
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::fv::buoyancyEnergy::buoyancyEnergy
(
    const word& sourceName,
    const word& modelType,
    const dictionary& dict,
    const fvMesh& mesh
)
:
    fv::option(sourceName, modelType, dict, mesh),
    UName_(coeffs_.getOrDefault<word>("U", "U"))
{
    coeffs_.readEntry("fields", fieldNames_);
 
    if (fieldNames_.size() != 1)
    {
        FatalErrorInFunction
            << "settings are:" << fieldNames_ << exit(FatalError);
    }
 
    fv::option::resetApplied();
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::fv::buoyancyEnergy::addSup
(
    const volScalarField& rho,
    fvMatrix<scalar>& eqn,
    const label fieldi
)
{
    const uniformDimensionedVectorField& g =
        meshObjects::gravity::New(mesh_.time());
 
    const auto& U = mesh_.lookupObject<volVectorField>(UName_);
 
    eqn += rho*(U&g);
}
 
 
bool Foam::fv::buoyancyEnergy::read(const dictionary& dict)
{
    if (fv::option::read(dict))
    {
        coeffs_.readIfPresent("UName", UName_);
 
        return true;
    }
 
    return false;
}
 
 
// ************************************************************************* //