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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation
\\/ 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 "WenYu.H"
#include "phasePair.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace dragModels
{
defineTypeNameAndDebug(WenYu, 0);
addToRunTimeSelectionTable(dragModel, WenYu, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::dragModels::WenYu::WenYu
(
const dictionary& dict,
const phasePair& pair,
const bool registerObject
)
:
dragModel(dict, pair, registerObject),
residualRe_("residualRe", dimless, dict)
{}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::dragModels::WenYu::~WenYu()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::dragModels::WenYu::CdRe() const
{
volScalarField alpha2
(
max(scalar(1) - pair_.dispersed(), pair_.continuous().residualAlpha())
);
volScalarField Res(alpha2*pair_.Re());
volScalarField CdsRes
(
neg(Res - 1000)*24.0*(1.0 + 0.15*pow(Res, 0.687))
+ pos(Res - 1000)*0.44*max(Res, residualRe_)
);
return
CdsRes
*pow(alpha2, -3.65)
*max(pair_.continuous(), pair_.continuous().residualAlpha());
}
// ************************************************************************* //
|
