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functionObjects::cylindricalFunctionObject: New functionObject to transform velocity into cylindrical polar coordinates

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Description
    Transforms the specified velocity field into a
    cylindrical polar coordinate system or back to Cartesian.

    Example of function object specification to convert the velocity field U
    into cylindrical polar coordinates before averaging and returning the
    average to Cartesian coordinates:
    \verbatim
    cartesianToCylindrical
    {
        type        cylindrical;
        libs        ("libfieldFunctionObjects.so");

        origin      (0 0 0);
        axis        (0 0 1);

        field       U;

        writeControl    outputTime;
        writeInterval   1;
    }

    #includeFunc fieldAverage(cylindrical(U))

    cylindricalToCartesian
    {
        type        cylindrical;
        libs        ("libfieldFunctionObjects.so");

        origin      (0 0 0);
        axis        (0 0 1);

        field       cylindrical(U)Mean;
        toCartesian true;
        result      UMean;

        writeControl    outputTime;
        writeInterval   1;
    }
    \endverbatim
    This is particularly useful for cases with rotating regions, e.g. mixer
    vessels with AMI.

See tutorials/incompressible/pimpleFoam/laminar/mixerVesselAMI2D
This commit is contained in:
Henry Weller
2020-12-24 11:13:15 +00:00
parent e7af10060d
commit 501f3de7b5
4 changed files with 338 additions and 1 deletions
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38
tutorials/incompressible/pimpleFoam/laminar/mixerVesselAMI2D/system/controlDict
View File

@ -29,7 +29,7 @@ deltaT 1e-3;
writeControl adjustableRunTime;
writeInterval 0.1;
writeInterval 0.05;
purgeWrite 0;
@ -49,4 +49,40 @@ adjustTimeStep yes;
maxCo 0.5;
functions
{
cartesianToCylindrical
{
type cylindrical;
libs ("libfieldFunctionObjects.so");
origin (0 0 0);
axis (0 0 1);
field U;
writeControl outputTime;
writeInterval 1;
}
#includeFunc fieldAverage(cylindrical(U))
cylindricalToCartesian
{
type cylindrical;
libs ("libfieldFunctionObjects.so");
origin (0 0 0);
axis (0 0 1);
field cylindrical(U)Mean;
toCartesian true;
result UMean;
writeControl outputTime;
writeInterval 1;
}
}
// ************************************************************************* //