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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2013-2020 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::adaptiveSolver
Description
SourceFiles
adaptiveSolver.C
\*---------------------------------------------------------------------------*/
#ifndef adaptiveSolver_H
#define adaptiveSolver_H
#include "ODESolver.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class adaptiveSolver Declaration
\*---------------------------------------------------------------------------*/
class adaptiveSolver
{
// Private Data
//- Step-size adjustment controls
scalar safeScale_, alphaInc_, alphaDec_, minScale_, maxScale_;
//- Cache for dydx at the initial time
mutable scalarField dydx0_;
//- Temporary for the test-step solution
mutable scalarField yTemp_;
public:
// Constructors
//- Construct from ODESystem
adaptiveSolver(const ODESystem& ode, const dictionary& dict);
//- Destructor
virtual ~adaptiveSolver()
{}
// Member Functions
//- Resize the ODE solver
bool resize(const label n);
//- Solve a single step dx and return the error
virtual scalar solve
(
const scalar x0,
const scalarField& y0,
const label li,
const scalarField& dydx0,
const scalar dx,
scalarField& y
) const = 0;
//- Solve the ODE system and the update the state
void solve
(
const ODESystem& ode,
scalar& x,
scalarField& y,
const label li,
scalar& dxTry
) const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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