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Old   March 7, 2004, 08:28
Default static stall
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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.
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Old   March 9, 2004, 07:07
Default Re: static stall
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That's the big issue with turbulence models : they can hardly predict stall angle. That's the reason for DES and LES to exist.

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