[Tom]

Is there anyway to reduce the drag i have further. At 0 deg AOA my drag obtained is 0.012, actual 0.008. The solution is no longer dependent on the number of elements on the airfoil or the mesh. Changing the airfoil size to increase the inlet velocity speeds does not change much too. Transient modeling gives the same results.

Turbulence intensity is below 0.1%, 0.001 according to the limited data which i have to verify. Length scale. Any suggestions for it? Reynolds number is 300k.

The SST model seems to be giving me an early separation of the flow. Which i think is a problem. As i have tried the transitional model with zero AOA (Gamma model) i can get a good result but the problem lies in different AOA which i do not have the different transition reynolds number. Could anyone suggest a way to improve the drag result to slightly below 0.01.

Thanks.