openfoam/src/finiteVolume/fields/fvPatchFields/derived/pressureInletOutletParSlipVelocity/pressureInletOutletParSlipVelocityFvPatchVectorField.C
Henry Weller 56bfc75949 Rationalize the "pos" function
"pos" now returns 1 if the argument is greater than 0, otherwise it returns 0.
This is consistent with the common mathematical definition of the "pos" function:

https://en.wikipedia.org/wiki/Sign_(mathematics)

However the previous implementation in which 1 was also returned for a 0
argument is useful in many situations so the "pos0" has been added which returns
1 if the argument is greater or equal to 0.  Additionally the "neg0" has been
added which returns 1 if if the argument is less than or equal to 0.
2017-06-22 14:32:18 +01:00

196 lines
5.5 KiB
C

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2017 OpenFOAM Foundation
\\/ M anipulation | Copyright (C) 2017 OpenCFD Ltd.
-------------------------------------------------------------------------------
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 "pressureInletOutletParSlipVelocityFvPatchVectorField.H"
#include "addToRunTimeSelectionTable.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "surfaceFields.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
pressureInletOutletParSlipVelocityFvPatchVectorField
(
const fvPatch& p,
const DimensionedField<vector, volMesh>& iF
)
:
mixedFvPatchVectorField(p, iF),
phiName_("phi"),
rhoName_("rho")
{
refValue() = *this;
refGrad() = Zero;
valueFraction() = 0.0;
}
Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
pressureInletOutletParSlipVelocityFvPatchVectorField
(
const pressureInletOutletParSlipVelocityFvPatchVectorField& ptf,
const fvPatch& p,
const DimensionedField<vector, volMesh>& iF,
const fvPatchFieldMapper& mapper
)
:
mixedFvPatchVectorField(ptf, p, iF, mapper),
phiName_(ptf.phiName_),
rhoName_(ptf.rhoName_)
{}
Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
pressureInletOutletParSlipVelocityFvPatchVectorField
(
const fvPatch& p,
const DimensionedField<vector, volMesh>& iF,
const dictionary& dict
)
:
mixedFvPatchVectorField(p, iF),
phiName_(dict.lookupOrDefault<word>("phi", "phi")),
rhoName_(dict.lookupOrDefault<word>("rho", "rho"))
{
patchType() = dict.lookupOrDefault<word>("patchType", word::null);
fvPatchVectorField::operator=(vectorField("value", dict, p.size()));
refValue() = *this;
refGrad() = Zero;
valueFraction() = 0.0;
}
Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
pressureInletOutletParSlipVelocityFvPatchVectorField
(
const pressureInletOutletParSlipVelocityFvPatchVectorField& pivpvf
)
:
mixedFvPatchVectorField(pivpvf),
phiName_(pivpvf.phiName_),
rhoName_(pivpvf.rhoName_)
{}
Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
pressureInletOutletParSlipVelocityFvPatchVectorField
(
const pressureInletOutletParSlipVelocityFvPatchVectorField& pivpvf,
const DimensionedField<vector, volMesh>& iF
)
:
mixedFvPatchVectorField(pivpvf, iF),
phiName_(pivpvf.phiName_),
rhoName_(pivpvf.rhoName_)
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::updateCoeffs()
{
if (updated())
{
return;
}
const surfaceScalarField& phi =
db().lookupObject<surfaceScalarField>(phiName_);
const fvsPatchField<scalar>& phip =
patch().patchField<surfaceScalarField, scalar>(phi);
tmp<vectorField> n = patch().nf();
const Field<scalar>& magSf = patch().magSf();
// Get the tangential component from the internalField (zero-gradient)
vectorField Ut(patchInternalField());
Ut -= n()*(Ut & n());
if (phi.dimensions() == dimVelocity*dimArea)
{
refValue() = Ut + n*phip/magSf;
}
else if (phi.dimensions() == dimDensity*dimVelocity*dimArea)
{
const fvPatchField<scalar>& rhop =
patch().lookupPatchField<volScalarField, scalar>(rhoName_);
refValue() = Ut + n*phip/(rhop*magSf);
}
else
{
FatalErrorInFunction
<< "dimensions of phi are not correct" << nl
<< " on patch " << this->patch().name()
<< " of field " << this->internalField().name()
<< " in file " << this->internalField().objectPath()
<< exit(FatalError);
}
valueFraction() = 1.0 - pos0(phip);
mixedFvPatchVectorField::updateCoeffs();
}
void Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::write
(
Ostream& os
) const
{
fvPatchVectorField::write(os);
writeEntryIfDifferent<word>(os, "phi", "phi", phiName_);
writeEntryIfDifferent<word>(os, "rho", "rho", rhoName_);
writeEntry("value", os);
}
// * * * * * * * * * * * * * * * Member Operators * * * * * * * * * * * * * //
void Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::operator=
(
const fvPatchField<vector>& pvf
)
{
fvPatchField<vector>::operator=(pvf);
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
makePatchTypeField
(
fvPatchVectorField,
pressureInletOutletParSlipVelocityFvPatchVectorField
);
}
// ************************************************************************* //