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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2017-2026 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
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You should have received a copy of the GNU General Public License
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Class
Foam::porosityModels::solidification
Description
Simple solidification porosity model
This is a simple approximation to solidification where the solid phase
is represented as a porous blockage with the drag-coefficient evaluated from
\f[
S = - \alpha \rho D(T) U
\f]
where
\vartable
\alpha | Optional phase-fraction of solidifying phase
D(T) | User-defined drag-coefficient as function of temperature
\endvartable
Note that the latent heat of solidification is not included and the
temperature is unchanged by the modelled change of phase.
Example of the solidification model specification:
\verbatim
type solidification;
solidification
{
// Solidify between 330K and 330.5K
D table
(
(330.0 10000) // Solid below 330K
(330.5 0) // Liquid above 330.5K
);
// Optional phase-fraction of solidifying phase
alpha alpha.liquid;
// Solidification porosity is isotropic
// use the global coordinate system
coordinateSystem
{
type cartesian;
origin (0 0 0);
coordinateRotation
{
type axesRotation;
e1 (1 0 0);
e2 (0 1 0);
}
}
}
\endverbatim
SourceFiles
solidification.C
solidificationTemplates.C
\*---------------------------------------------------------------------------*/
#ifndef solidification_H
#define solidification_H
#include "porosityModel.H"
#include "Function1.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace porosityModels
{
/*---------------------------------------------------------------------------*\
Class solidification Declaration
\*---------------------------------------------------------------------------*/
class solidification
:
public porosityModel
{
// Private Data
//- Name of temperature field, default = "T"
word TName_;
//- Name of optional phase-fraction field, default = "none"
word alphaName_;
//- Name of density field, default = "rho"
word rhoName_;
//- User-defined drag-coefficient as function of temperature
autoPtr<Function1<scalar>> D_;
// Private Member Functions
//- Apply resistance
template<class AlphaFieldType, class RhoFieldType>
void apply
(
scalarField& Udiag,
const scalarField& V,
const AlphaFieldType& alpha,
const RhoFieldType& rho,
const volVectorField& U
) const;
//- Apply resistance
template<class AlphaFieldType, class RhoFieldType>
void apply
(
tensorField& AU,
const AlphaFieldType& alpha,
const RhoFieldType& rho,
const volVectorField& U
) const;
//- Apply resistance
template<class RhoFieldType>
void apply
(
scalarField& Udiag,
const scalarField& V,
const RhoFieldType& rho,
const volVectorField& U
) const;
//- Apply resistance
template<class RhoFieldType>
void apply
(
tensorField& AU,
const RhoFieldType& rho,
const volVectorField& U
) const;
public:
//- Runtime type information
TypeName("solidification");
// Constructors
solidification
(
const word& name,
const fvMesh& mesh,
const dictionary& dict,
const dictionary& coeffDict,
const word& cellZoneName
);
//- Disallow default bitwise copy construction
solidification(const solidification&) = delete;
//- Destructor
virtual ~solidification();
// Member Functions
//- Transform the model data wrt mesh changes
virtual void calcTransformModelData();
//- Calculate the porosity force
virtual void calcForce
(
const volVectorField& U,
const volScalarField& rho,
const volScalarField& mu,
vectorField& force
) const;
//- Add resistance
virtual void correct(fvVectorMatrix& UEqn) const;
//- Add resistance
virtual void correct
(
const fvVectorMatrix& UEqn,
volTensorField& AU
) const;
// Member Operators
//- Disallow default bitwise assignment
void operator=(const solidification&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace porosityModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#ifdef NoRepository
#include "solidificationTemplates.C"
#endif
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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