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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2022-2025 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::solvers::basicFluidSolver
Description
Base solver module for fluid solvers.
Provides Courant number time-step control and continuity checking.
Reference:
\verbatim
Greenshields, C. J., & Weller, H. G. (2022).
Notes on Computational Fluid Dynamics: General Principles.
CFD Direct Ltd.: Reading, UK.
\endverbatim
SourceFiles
basicFluidSolver.C
\*---------------------------------------------------------------------------*/
#ifndef basicFluidSolver_H
#define basicFluidSolver_H
#include "solver.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace solvers
{
/*---------------------------------------------------------------------------*\
Class basicFluidSolver Declaration
\*---------------------------------------------------------------------------*/
class basicFluidSolver
:
public solver
{
// Control parameters
//- Maximum allowed Courant number
scalar maxCo;
//- Maximum time-step
scalar maxDeltaT_;
//- Switch to check the mesh Courant number after mesh change
bool checkMeshCourantNo;
// Continuity properties
//- Current cumulative continuity error
scalar cumulativeContErr;
// Private Member Functions
//- Correct the cached Courant numbers
template<class RhoType>
inline void correctCoNum
(
const RhoType& rho,
const surfaceScalarField& phi
);
protected:
//- Return true if the solver's dependencies have been modified
virtual bool dependenciesModified() const;
//- Read controls
virtual bool read();
//- Switch to correct the flux after mesh change
bool correctPhi;
//- Current maximum Courant number for time-step control
scalar CoNum_;
//- Check mesh Courant numbers for moving mesh cases
void meshCourantNo() const;
//- Correct the cached Courant numbers
void correctCoNum(const surfaceScalarField& phi);
//- Correct the cached Courant numbers
void correctCoNum
(
const volScalarField& rho,
const surfaceScalarField& phi
);
//- Calculate and print the continuity errors
void continuityErrors
(
const surfaceScalarField& phi
);
//- Calculate and print the continuity errors
void continuityErrors
(
const volScalarField& rho,
const volScalarField& thermoRho,
const surfaceScalarField& phi
);
public:
// Public Data
//- Current maximum Courant number for time-step control
const scalar& CoNum;
public:
//- Runtime type information
TypeName("basicFluidSolver");
// Constructors
//- Construct from region mesh
basicFluidSolver(fvMesh& mesh);
//- Disallow default bitwise copy construction
basicFluidSolver(const basicFluidSolver&) = delete;
//- Destructor
virtual ~basicFluidSolver();
// Member Functions
//- Return the current maximum time-step for stable solution
virtual scalar maxDeltaT() const;
// Member Operators
//- Disallow default bitwise assignment
void operator=(const basicFluidSolver&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace solvers
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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