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Creation of OpenFOAM-dev repository 15/04/2008

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OpenFOAM-admin
2008-04-15 18:56:58 +01:00
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src/ODE/ODESolvers/SIBS/polyExtrapolate.C Normal file
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2007 OpenCFD Ltd.
\\/ 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 2 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, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
\*---------------------------------------------------------------------------*/
#include "SIBS.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
void Foam::SIBS::polyExtrapolate
(
const label iest,
const scalar xest,
const scalarField& yest,
scalarField& yz,
scalarField& dy,
scalarField& x,
Matrix<scalar>& d
) const
{
label n = yz.size();
x[iest] = xest;
for (register label j=0; j<n; j++)
{
dy[j] = yz[j] = yest[j];
}
if (iest == 0)
{
for (register label j=0; j<n; j++)
{
d[j][0] = yest[j];
}
}
else
{
scalarField c(yest);
for (register label k1=0; k1<iest; k1++)
{
scalar delta = 1.0/(x[iest - k1 - 1] - xest);
scalar f1 = xest*delta;
scalar f2 = x[iest - k1 - 1]*delta;
for (register label j=0; j<n; j++)
{
scalar q = d[j][k1];
d[j][k1] = dy[j];
delta = c[j] - q;
dy[j] = f1*delta;
c[j] = f2*delta;
yz[j] += dy[j];
}
}
for (register label j=0; j<n; j++)
{
d[j][iest] = dy[j];
}
}
}
// ************************************************************************* //