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| /*---------------------------------------------------------------------------*\
*========= |
*\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
*\\ / O peration |
*\\ / A nd | Copyright (C) 1991-2009 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
Application
foamTimeAverage
Author
Xiaoping Qiu
q.giskard@gmail.com
Description
Calculates the time average of the specified volField over the specified time range.
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
template<class FieldType>
void calcTimeAverage
(
fvMesh& mesh,
const IOobject& fieldHeader,
const word& fieldName,
Time& runTime,
instantList& timeDirs,
bool& done
)
{
label nfield = 0;
const word meanFieldName = fieldName + "_mean";
//Info << "class name = " << fieldHeader.headerClassName() << endl;
//Info << "typeName = " << FieldType::typeName << endl;
if(!done && fieldHeader.headerClassName() == FieldType::typeName)
{
FieldType dummy
(
IOobject
(
fieldName,
runTime.timeName(),
mesh,
IOobject::MUST_READ
),
mesh
);
FieldType meanField
(
IOobject
(
meanFieldName,
runTime.timeName(),
mesh,
IOobject::NO_READ
),
dummy
);
meanField *= scalar(0.0);
forAll(timeDirs, timeI)
{
runTime.setTime(timeDirs[timeI], timeI);
Info << "Time = " << runTime.timeName() <<endl;
IOobject io
(
fieldName,
runTime.timeName(),
mesh,
IOobject::MUST_READ
);
if (io.headerOk())
{
mesh.readUpdate();
if(!done && io.headerClassName() == FieldType::typeName)
{
Info << " Reading " << io.headerClassName() << " " <<io.name() << endl;
FieldType field(io, mesh);
meanField += field;
nfield++;
}
}
else
{
Info << " No Field " << fieldName << endl;
}
}
if(nfield > 0)
{
Info << "number of field = " << nfield << endl;
meanField /= nfield;
}
Info<< "writing to timeDir " << runTime.timeName() << endl;
meanField.write();
done = true;
}
}
// Main program:
int main(int argc, char *argv[])
{
Foam::timeSelector::addOptions();
#include "addRegionOption.H"
Foam::argList::validArgs.append("fieldName");
# include "setRootCase.H"
# include "createTime.H"
instantList timeDirs = timeSelector::select0(runTime, args);
runTime.setTime(timeDirs[0], 0);
# include "createNamedMesh.H"
// get filename from command line
const word fieldName = args[1];
bool done = false;
IOobject fieldHeader
(
fieldName,
runTime.timeName(),
mesh,
IOobject::MUST_READ
);
if(fieldHeader.headerOk())//very important!
{
calcTimeAverage<volScalarField>(mesh, fieldHeader, fieldName, runTime, timeDirs, done);
calcTimeAverage<volVectorField>(mesh, fieldHeader, fieldName, runTime, timeDirs, done);
calcTimeAverage<volTensorField>(mesh, fieldHeader, fieldName, runTime, timeDirs, done);
calcTimeAverage<volSymmTensorField>(mesh, fieldHeader, fieldName, runTime, timeDirs, done);
calcTimeAverage<volSphericalTensorField>(mesh, fieldHeader, fieldName, runTime, timeDirs, done);
}
else
{
Info<< " Error! No field " << fieldName << endl;
}
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //
|
