[Julio9919]

Hello,
I'm encountering an issue while trying to define a slice sub-region for the fieldAverage function in OpenFOAM. I've followed the documentation closely but keep encountering an error message. I'm hoping someone can provide insights into what might be going wrong.


Problem Description: I'm attempting to use the fieldAverage function in OpenFOAM to calculate field averages within a specific slice sub-region. Here's the configuration I've used in my system/controlDict file:

fieldAverage
{
    type            fieldAverage;
    libs            ("libfieldFunctionObjects.so");

    enabled         true;
    writeControl    timeStep;
    writeInterval   20;

    subRegion samples.yNormal;

    fields
    (
        U
        {
            mean            on;
            prime2Mean      on;
            base            time;
        }
        p
        {
            mean            on;
            prime2Mean      on;
            base            time;
        }
    );
}

samples
{
    type            surfaces;
    libs            (sampling);

    //${_visualization};

    fields          (p U);

    surfaceFormat   vtk;

    verbose         false;

    writeControl      timeStep;
    writeInterval     20;

    interpolationScheme cellPoint;

    surfaces
    {
        yNormal
        {
            type            cuttingPlane;
            planeType       pointAndNormal;
            interpolate     true;
            store           true;
            pointAndNormalDict
            {
                point   (0 0 0);
                normal  (0 1 0);
            }
        }
    }
}

Issue: Upon running the simulation, I receive an error message indicating that the subRegion "slice" cannot be located. I'm wondering if there's something I might be missing or misunderstanding in the setup.


--> FOAM Warning :
From virtual const Foam:: objectRegistry& Foam::functionObjects::regionFunctionObject:: obr() const
in file db/functionObjects/regionFunctionObject/regionFunctionObject.C at line 63
Could not locate subRegion "slice"