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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2018-2025 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::fv::acceleration
Description
This fvModel applies an explicit acceleration force to components of the
velocity field.
Usage
Example usage:
\verbatim
acceleration1
{
type acceleration;
cellZone all;
U U;
velocity scale;
value (-2.572 0 0);
scale
{
type halfCosineRamp;
start 0;
duration 10;
}
}
\endverbatim
SourceFiles
acceleration.C
\*---------------------------------------------------------------------------*/
#ifndef acceleration_H
#define acceleration_H
#include "fvModel.H"
#include "fvCellZone.H"
#include "Function1.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace fv
{
/*---------------------------------------------------------------------------*\
Class acceleration Declaration
\*---------------------------------------------------------------------------*/
class acceleration
:
public fvModel
{
// Private Data
//- The cellZone the fvConstraint applies to
fvCellZone zone_;
//- Name of the velocity field
word UName_;
//- Time-varying velocity
autoPtr<Function1<vector>> velocity_;
// Private Member Functions
//- Non-virtual read
void readCoeffs(const dictionary& dict);
//- Source term to momentum equation
template<class AlphaRhoFieldType>
inline void add
(
const AlphaRhoFieldType& rho,
fvMatrix<vector>& eqn
) const;
public:
//- Runtime type information
TypeName("acceleration");
// Constructors
//- Construct from components
acceleration
(
const word& name,
const word& modelType,
const fvMesh& mesh,
const dictionary& dict
);
//- Destructor
virtual ~acceleration()
{}
// Member Functions
// Checks
//- Return the list of fields for which the fvModel adds source term
// to the transport equation
virtual wordList addSupFields() const;
// Add explicit and implicit contributions
//- Source term to momentum equation
virtual void addSup
(
const volVectorField& U,
fvMatrix<vector>& eqn
) const;
//- Source term to compressible momentum equation
virtual void addSup
(
const volScalarField& rho,
const volVectorField& U,
fvMatrix<vector>& eqn
) const;
//- Source term to phase momentum equation
virtual void addSup
(
const volScalarField& alpha,
const volScalarField& rho,
const volVectorField& U,
fvMatrix<vector>& eqn
) const;
// Mesh changes
//- Update for mesh motion
virtual bool movePoints();
//- Update topology using the given map
virtual void topoChange(const polyTopoChangeMap&);
//- Update from another mesh using the given map
virtual void mapMesh(const polyMeshMap&);
//- Redistribute or update using the given distribution map
virtual void distribute(const polyDistributionMap&);
// IO
//- Read dictionary
virtual bool read(const dictionary& dict);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace fv
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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