[Siassei]

Hello,

I try to write an unverisal function for an challange and has no idea for the universal part.
If in the RANS simulation is
k := turbulent kinetic energy
or/and
epsilon := energy dissipation rate
are not present (e.g. k-omega turb. model), how can I calculate the values/fields. The formula are present (k, epsilon)

Please tell me an way to calculate the values in a function that are written to system/controlDict

...
functions
{
    calcSomething
    {
        libs        ("libutilityFunctionObjects.so");
        type coded;
        name abc;
        codeWrite
        #{
            // if epsilon is not present
               // do calc
            // if k is not present
               // do calc
            // ...
        #};
    }
}