simulating separated flow past the airfoil

Yusoff

Hi all, I am now trying to simulate a flow past an airfoil(NACA 2412) at high incidence angle(> 18 degrees). At this angle the flow should be separated from the airfoil and have an almost constant pressure past the quarter chord. However when I visualize the results using streamline ... there is no separated flow and the surface pressure plot also did not show contant pressure in the separated region. Have anyone tried this with some good results comparing with the experimental data. Could you advise me on the preparation and the turbulence model I have to use and any additional factor that I may have left out unknowingly..

Thanks