Reverse Flow problem
 

I am simulating the flow in a stirred bead mill. For the continuous case, I am getting reverse flow for low flow rates. Can this be corrected?

Re: Reverse Flow problem
 

I believe this is dependent on the turbulance parameters that you setup to calculate turbulance at your aboundary conditions. What turbulence approximation are you using?

Re: Reverse Flow problem
 

check whether you have specified the backflow parameters sufficiently, and also the reference conditions.too much of turbulance at low pressure ratios causes rapid reverse flow.