mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-11-28 03:28:01 +00:00
56bfc75949
"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.
160 lines
4.3 KiB
C++
160 lines
4.3 KiB
C++
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright (C) 2011-2017 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/>.
|
|
|
|
Class
|
|
Foam::upwind
|
|
|
|
Group
|
|
grpFvLimitedSurfaceInterpolationSchemes
|
|
|
|
Description
|
|
Upwind differencing scheme class.
|
|
|
|
SourceFiles
|
|
upwind.C
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#ifndef upwind_H
|
|
#define upwind_H
|
|
|
|
#include "limitedSurfaceInterpolationScheme.H"
|
|
#include "volFields.H"
|
|
#include "surfaceFields.H"
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
namespace Foam
|
|
{
|
|
|
|
/*---------------------------------------------------------------------------*\
|
|
Class upwind Declaration
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
template<class Type>
|
|
class upwind
|
|
:
|
|
public limitedSurfaceInterpolationScheme<Type>
|
|
{
|
|
// Private Member Functions
|
|
|
|
//- Disallow default bitwise assignment
|
|
void operator=(const upwind&);
|
|
|
|
|
|
public:
|
|
|
|
//- Runtime type information
|
|
TypeName("upwind");
|
|
|
|
|
|
// Constructors
|
|
|
|
//- Construct from faceFlux
|
|
upwind
|
|
(
|
|
const fvMesh& mesh,
|
|
const surfaceScalarField& faceFlux
|
|
)
|
|
:
|
|
limitedSurfaceInterpolationScheme<Type>(mesh, faceFlux)
|
|
{}
|
|
|
|
//- Construct from Istream.
|
|
// The name of the flux field is read from the Istream and looked-up
|
|
// from the mesh objectRegistry
|
|
upwind
|
|
(
|
|
const fvMesh& mesh,
|
|
Istream& is
|
|
)
|
|
:
|
|
limitedSurfaceInterpolationScheme<Type>(mesh, is)
|
|
{}
|
|
|
|
//- Construct from faceFlux and Istream
|
|
upwind
|
|
(
|
|
const fvMesh& mesh,
|
|
const surfaceScalarField& faceFlux,
|
|
Istream&
|
|
)
|
|
:
|
|
limitedSurfaceInterpolationScheme<Type>(mesh, faceFlux)
|
|
{}
|
|
|
|
|
|
// Member Functions
|
|
|
|
//- Return the interpolation limiter
|
|
virtual tmp<surfaceScalarField> limiter
|
|
(
|
|
const GeometricField<Type, fvPatchField, volMesh>&
|
|
) const
|
|
{
|
|
return tmp<surfaceScalarField>
|
|
(
|
|
new surfaceScalarField
|
|
(
|
|
IOobject
|
|
(
|
|
"upwindLimiter",
|
|
this->mesh().time().timeName(),
|
|
this->mesh(),
|
|
IOobject::NO_READ,
|
|
IOobject::NO_WRITE,
|
|
false
|
|
),
|
|
this->mesh(),
|
|
dimensionedScalar("upwindLimiter", dimless, 0.0)
|
|
)
|
|
);
|
|
}
|
|
|
|
//- Return the interpolation weighting factors
|
|
tmp<surfaceScalarField> weights() const
|
|
{
|
|
return pos0(this->faceFlux_);
|
|
}
|
|
|
|
//- Return the interpolation weighting factors
|
|
virtual tmp<surfaceScalarField> weights
|
|
(
|
|
const GeometricField<Type, fvPatchField, volMesh>&
|
|
) const
|
|
{
|
|
return weights();
|
|
}
|
|
};
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
} // End namespace Foam
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
#endif
|
|
|
|
// ************************************************************************* //
|