[farshadexp]

Hi FOAMers;
Does anyone know the differences between two method in calculating reynolds tensor:

functions
{
    fieldAverage1
    {
        type            fieldAverage;
        functionObjectLibs ( "libfieldFunctionObjects.so" );
        enabled           true;
        outputControl   timeStep;
        outputInterval  100;
        fields
        (
            U
            {
                mean        on;
                prime2Mean  on;
                base        time;
            }
        );
    }
}

and

functions   R;

the dimension of both of them is m2/s2.

[Andrea1984]

The first method calculates the resolved Reynolds Stresses from an unsteady simulation, whilst I believe that the second one returns the modelled Reynolds Stresses from your turbulence model.

Andrea