db7fac3f24
git-svn-id: https://openfoam-extend.svn.sourceforge.net/svnroot/openfoam-extend/trunk/Core/OpenFOAM-1.5-dev@1731 e4e07f05-0c2f-0410-a05a-b8ba57e0c909
74 lines
1.3 KiB
C++
74 lines
1.3 KiB
C++
Info<< "Reading combustion properties\n" << endl;
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IOdictionary engineGeometry
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(
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IOobject
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(
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"engineGeometry",
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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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vector swirlAxis
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(
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engineGeometry.lookup("swirlAxis")
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);
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vector swirlCenter
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(
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engineGeometry.lookup("swirlCenter")
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);
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dimensionedScalar swirlRPMRatio
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(
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engineGeometry.lookup("swirlRPMRatio")
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);
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dimensionedScalar swirlProfile
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(
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engineGeometry.lookup("swirlProfile")
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);
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dimensionedScalar bore
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(
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engineGeometry.lookup("bore")
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);
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dimensionedScalar rpm
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(
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engineGeometry.lookup("rpm")
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);
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Info<< "Reading field U\n" << endl;
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volVectorField U
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(
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IOobject
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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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IOobject::AUTO_WRITE
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),
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mesh
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);
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vector zT = swirlAxis;
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vector yT = vector(0, zT.z(), -zT.y());
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vector xT = vector(zT.y()*zT.y() + zT.z()*zT.z(), -zT.x()*zT.y(), -zT.x()*zT.z());
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// if swirl is around (1, 0, 0) we have to find another transformation
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if (mag(yT) < SMALL)
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{
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yT = vector(zT.y(), -zT.x(), 0);
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xT = vector(-zT.x()*zT.z(), -zT.y()*zT.z(), zT.x()*zT.x() + zT.y()*zT.y());
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}
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//swirlAxis doesn't have to be of unit length.
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xT /= mag(xT);
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yT /= mag(yT);
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zT /= mag(zT);
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