CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   OpenFOAM Running, Solving & CFD (http://www.cfd-online.com/Forums/openfoam-solving/)
-   -   k and epsilon, how big is too big? (http://www.cfd-online.com/Forums/openfoam-solving/115782-k-epsilon-how-big-too-big.html)

NJG April 6, 2013 14:38

k and epsilon, how big is too big?
 
The title says it all: If I am running a RANS model using a PIMPLE based solver, how big is too big for k and epsilon values?

In a simple convective and mass fraction transport model I am running at present with a constant inflow surface and a pair of constant pressure outflow surfaces, I have nice tiny k and epsilon values except right near the outflow surfaces, where they reach about 0.033 and 0.15 respectively. Is this too high to trust the results of my model?

-NG


All times are GMT -4. The time now is 12:06.