FoamFile
{
    format      ascii;
    class       dictionary;
    location    "system";
    object      functions;
}

inletPressureAverage
{
    type            surfaceFieldValue;
    libs            ("libfieldFunctionObjects.so");
    log             true;
    writeControl    writeTime;
    writeFields     false;
    patch           inlet;
    operation       areaAverage;
    fields          (p);
}

outletPressureAverage
{
    type            surfaceFieldValue;
    libs            ("libfieldFunctionObjects.so");
    log             true;
    writeControl    writeTime;
    writeFields     false;
    patch           outlet;
    operation       areaAverage;
    fields          (p);
}
