mirror of
https://github.com/OpenFOAM/OpenFOAM-6.git
synced 2025-12-08 06:57:46 +00:00
18725ed3ac
This changes simplifies the specification of functionObjects in controlDict and is consistent with the 'libs' option in controlDict to load special solver libraries. Support for the old 'functionObjectLibs' name is supported for backward compatibility.
149 lines
3.9 KiB
C++
149 lines
3.9 KiB
C++
/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: dev |
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| \\ / A nd | Web: www.OpenFOAM.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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version 2.0;
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format ascii;
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class dictionary;
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location "system";
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object controlDict;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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application potentialFoam;
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startFrom latestTime;
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startTime 0;
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stopAt nextWrite;
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endTime 1;
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deltaT 1;
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writeControl timeStep;
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writeInterval 1;
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purgeWrite 0;
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writeFormat ascii;
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writePrecision 6;
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writeCompression off;
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timeFormat general;
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timePrecision 6;
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runTimeModifiable true;
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functions
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{
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difference
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{
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// Load the library containing the 'coded' functionObject
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libs ("libutilityFunctionObjects.so");
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type coded;
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writeControl timeStep;
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// Name of on-the-fly generated functionObject
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redirectType error;
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code
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#{
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// Lookup U
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Info<< "Looking up field U\n" << endl;
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const volVectorField& U = mesh().lookupObject<volVectorField>("U");
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Info<< "Reading inlet velocity uInfX\n" << endl;
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scalar ULeft = 0.0;
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label leftI = mesh().boundaryMesh().findPatchID("left");
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const fvPatchVectorField& fvp = U.boundaryField()[leftI];
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if (fvp.size())
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{
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ULeft = fvp[0].x();
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}
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reduce(ULeft, maxOp<scalar>());
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dimensionedScalar uInfX
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(
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"uInfx",
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dimensionSet(0, 1, -1, 0, 0),
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ULeft
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);
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Info << "U at inlet = " << uInfX.value() << " m/s" << endl;
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scalar magCylinder = 0.0;
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label cylI = mesh().boundaryMesh().findPatchID("cylinder");
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const fvPatchVectorField& cylFvp = mesh().C().boundaryField()[cylI];
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if (cylFvp.size())
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{
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magCylinder = mag(cylFvp[0]);
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}
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reduce(magCylinder, maxOp<scalar>());
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dimensionedScalar radius
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(
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"radius",
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dimensionSet(0, 1, 0, 0, 0),
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magCylinder
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);
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Info << "Cylinder radius = " << radius.value() << " m" << endl;
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volVectorField UA
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(
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IOobject
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(
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"UA",
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mesh().time().timeName(),
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U.mesh(),
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IOobject::NO_READ,
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IOobject::AUTO_WRITE
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),
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U
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);
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Info<< "\nEvaluating analytical solution" << endl;
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const volVectorField& centres = UA.mesh().C();
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volScalarField magCentres(mag(centres));
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volScalarField theta(acos((centres & vector(1,0,0))/magCentres));
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volVectorField cs2theta
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(
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cos(2*theta)*vector(1,0,0)
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+ sin(2*theta)*vector(0,1,0)
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);
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UA = uInfX*(dimensionedVector(vector(1,0,0))
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- pow((radius/magCentres),2)*cs2theta);
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// Force writing of UA (since time has not changed)
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UA.write();
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volScalarField error("error", mag(U-UA)/mag(UA));
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Info<<"Writing relative error in U to " << error.objectPath()
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<< endl;
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error.write();
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#};
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}
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}
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// ************************************************************************* //
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