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errorEstimation
estimateScalarError
estimateScalarError.C
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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Application
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estimateScalarError
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Description
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Estimates the error in the solution for a scalar transport equation in the
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standard form
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Usage
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- estimateScalarError [OPTIONS]
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@param -noZero \n
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Ignore timestep 0.
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@param -constant \n
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Include the constant directory.
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@param -time <time>\n
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Apply only to specific time.
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@param -latestTime \n
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Only apply to latest time step.
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@param -case <dir>\n
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Case directory.
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@param -parallel \n
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Run in parallel.
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@param -help \n
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Display help message.
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@param -doc \n
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Display Doxygen API documentation page for this application.
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@param -srcDoc \n
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Display Doxygen source documentation page for this application.
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\*---------------------------------------------------------------------------*/
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#include <
finiteVolume/fvCFD.H
>
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#include <
errorEstimation/errorEstimate.H
>
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#include <
errorEstimation/resError.H
>
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int
main
(
int
argc,
char
*argv[])
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{
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timeSelector::addOptions();
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# include <
OpenFOAM/setRootCase.H
>
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# include <
OpenFOAM/createTime.H
>
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instantList
timeDirs
= timeSelector::select0(runTime,
args
);
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# include <
OpenFOAM/createMesh.H
>
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Info
<<
"\nEstimating error in scalar transport equation\n"
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<<
"Reading transportProperties\n"
<<
endl
;
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IOdictionary
transportProperties
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(
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IOobject
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(
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"transportProperties"
,
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runTime.constant(),
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mesh
,
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IOobject::MUST_READ,
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IOobject::NO_WRITE
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)
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);
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Info
<<
"Reading diffusivity DT\n"
<<
endl
;
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dimensionedScalar
DT
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(
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transportProperties
.
lookup
(
"DT"
)
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);
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forAll
(timeDirs, timeI)
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{
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runTime.setTime(timeDirs[timeI], timeI);
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Info
<<
"Time = "
<< runTime.timeName() <<
endl
;
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mesh
.
readUpdate
();
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IOobject
THeader
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(
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"T"
,
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runTime.timeName(),
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mesh
,
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IOobject::MUST_READ
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);
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IOobject
Uheader
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(
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"U"
,
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runTime.timeName(),
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mesh
,
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IOobject::MUST_READ
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);
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if
(THeader.headerOk() && Uheader.headerOk())
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{
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Info
<<
"Reading T"
<<
endl
;
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volScalarField
T
(THeader,
mesh
);
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Info
<<
"Reading U"
<<
endl
;
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volVectorField
U
(Uheader,
mesh
);
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# include <
finiteVolume/createPhi.H
>
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errorEstimate<scalar>
ee
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(
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resError::div
(
phi
,
T
)
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-
resError::laplacian
(DT,
T
)
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);
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ee.residual()().write();
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volScalarField
e
= ee.error();
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e.
write
();
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mag
(e)().write();
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}
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else
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{
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Info
<<
" No T or U"
<<
endl
;
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}
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Info
<<
endl
;
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}
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Info
<<
"End\n"
<<
endl
;
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return
0;
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}
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// ************************ vim: set sw=4 sts=4 et: ************************ //