[sanjayiway]

I am solving rotating pipe flow with K-omega turbulence model having velocity of fluid is 10m/s & rotation applied on fluid =400rad/sec.
Input BC- velocity inlet-Axial velocity & turbulence intensity
Ouput BC-Pressure outlet- gauge pressure=0, Turbulence intensity.

I am not satisfied with last 10% of pipe flow, seems unrealistic physics and skin friction is also increaing in last 5% which is unrealistic.

I need to confirm the suitable output-BC. Kindly give your feedback