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ODESolvers
KRR4
KRR4.H
Go to the documentation of this file.
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::KRR4
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Description
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Foam::KRR4
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SourceFiles
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KRR4CK.C
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KRR4QS.C
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\*---------------------------------------------------------------------------*/
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#ifndef KRR4_H
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#define KRR4_H
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#include <
ODE/ODESolver.H
>
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace
Foam
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{
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/*---------------------------------------------------------------------------*\
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Class KRR4 Declaration
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\*---------------------------------------------------------------------------*/
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class
KRR4
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:
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public
ODESolver
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{
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// Private data
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mutable
scalarField
yTemp_;
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mutable
scalarField
dydxTemp_;
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mutable
scalarField
g1_;
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mutable
scalarField
g2_;
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mutable
scalarField
g3_;
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mutable
scalarField
g4_;
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mutable
scalarField
yErr_;
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mutable
scalarField
dfdx_;
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mutable
scalarSquareMatrix
dfdy_;
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mutable
scalarSquareMatrix
a_;
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mutable
labelList
pivotIndices_;
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static
const
int
maxtry = 40;
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static
const
scalar safety, grow, pgrow, shrink, pshrink, errcon;
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static
const
scalar
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gamma,
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a21, a31, a32,
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c21, c31, c32, c41, c42, c43,
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b1, b2, b3, b4,
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e1, e2, e3, e4,
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c1X, c2X, c3X, c4X,
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a2X, a3X;
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public
:
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//- Runtime type information
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TypeName
(
"KRR4"
);
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// Constructors
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//- Construct from ODE
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KRR4
(
const
ODE
&
ode
);
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// Member Functions
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void
solve
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(
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const
ODE
& ode,
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scalar& x,
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scalarField
&
y
,
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scalarField
& dydx,
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const
scalar eps,
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const
scalarField
& yScale,
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const
scalar hTry,
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scalar& hDid,
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scalar& hNext
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)
const
;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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}
// End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************ vim: set sw=4 sts=4 et: ************************ //