hi, i am using fluent 6 to simulate the stall condition. reynold no is 360000. the lift and drag increases as angle of attack increases ( as expected ) but could not perdit stall condition ( decrease in lift and sharp increase in drag ).at 360000 reynold no , the stall should be around 10 to 14 degree . i did try till 22 degree but could simulate stall condition.the y plus is less than 1 at all aoa and aspect ratio is also ok and turbulent to molecular viscosity ratio is about 1.2. i have tried all models but failed to perdit the stall condition.can any one suggest me any thing.

That's the big issue with turbulence models : they can hardly predict stall angle. That's the reason for DES and LES to exist.

Best Regards,

Sylvain