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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2020-2023 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::functionObjects::cylindrical
Description
Transforms the specified velocity field into a
cylindrical polar coordinate system or back to Cartesian.
Example of function object specification to convert the velocity field U
into cylindrical polar coordinates before averaging and returning the
average to Cartesian coordinates:
\verbatim
cartesianToCylindrical
{
type cylindrical;
libs ("libfieldFunctionObjects.so");
origin (0 0 0);
axis (0 0 1);
field U;
writeControl writeTime;
writeInterval 1;
}
#includeFunc fieldAverage(cylindrical(U))
cylindricalToCartesian
{
type cylindrical;
libs ("libfieldFunctionObjects.so");
origin (0 0 0);
axis (0 0 1);
field cylindrical(U)Mean;
toCartesian true;
result UMean;
writeControl writeTime;
writeInterval 1;
}
\endverbatim
This is particularly useful for cases with rotating regions, e.g. mixer
vessels with NCC.
See also
Foam::functionObjects::fieldExpression
Foam::functionObjects::fvMeshFunctionObject
SourceFiles
cylindrical.C
\*---------------------------------------------------------------------------*/
#ifndef cylindricalFunctionObject_H
#define cylindricalFunctionObject_H
#include "fieldExpression.H"
#include "primitiveFieldsFwd.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace functionObjects
{
/*---------------------------------------------------------------------------*\
Class cylindrical Declaration
\*---------------------------------------------------------------------------*/
class cylindrical
:
public fieldExpression
{
// Private Data
vector origin_;
vector axis_;
// Private Member Functions
tensor R(const vector& p) const;
void transform(vectorField& vf, const vectorField& points) const;
bool toCartesian_;
//- Calculate the cylindrical field and return true if successful
virtual bool calc();
public:
//- Runtime type information
TypeName("cylindrical");
// Constructors
//- Construct from Time and dictionary
cylindrical
(
const word& name,
const Time& runTime,
const dictionary& dict
);
//- Destructor
virtual ~cylindrical();
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace functionObjects
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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