[Turhan]

Dear all,

While doing a driftfluxfoam simulation I want to determine which relative velocity model I want to use.
I was wondering about a couple things, first of all, I saw this in a tutorial:

relativeVElocityModel simple;

"(simple|general)Coeffs"
{
V0 (0 -0.002 0)
a 285.84
a1 0.1
residualAlpha 0
}

Now when I look at the openfoam manual I see the equation for the simple and general model, however I don't see an a, a1 or residualAlpha variable, where do these come from and how are they being used?
My second question is about the following line:
"(simple|general)Coeffs"
What does this line do and how does it affect the equation for the simple model?


Thank you in advance

[JyoCFD]

https://www.cfd-online.com/Forums/bl...nfoam-org.html

You might get some info from the above link.