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Lift hysteresis of oscillating NACA0012 airfoil

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Old   April 23, 2014, 19:04
Default Lift hysteresis of oscillating NACA0012 airfoil
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Orxan Shibliyev
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Hi all,

I am running a case of oscillating airfoil and I get lift coefficients such that as the angle of attack (aoa) increases the lift coefficient decreases and vice versa. Basically, the hysteresis loop is rotated 90 degrees. When I try to get static lift coefficients I get correct behaviour but for dynamic pitching what I mentioned is happening. Any one has an idea?
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Old   July 28, 2014, 03:47
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Have you figured out the problem why lift hysteresis curve is rotated 90 degree. If so kindly help.
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