Lift hysteresis trouble

prasantasarkar · July 28, 2014, 01:53

Hi all,

I am running a case of oscillating airfoil and I get lift coefficients such that as the angle of attack 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 and good converged solution. Anybody has any suggestions?

prasantasarkar · July 28, 2014, 16:47

Looks like not many people around willing to help

owayz · August 18, 2015, 10:04

Hey Pras,
Did you solve the problem?
I seem to have the same problem. Any suggestions?

Regards,
Awais

July 28, 2014, 01:53	Lift hysteresis trouble	#1
prasantasarkar New Member Pras Join Date: Apr 2014 Posts: 13 Rep Power: 12	Hi all, I am running a case of oscillating airfoil and I get lift coefficients such that as the angle of attack 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 and good converged solution. Anybody has any suggestions?

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July 28, 2014, 16:47		#2
prasantasarkar New Member Pras Join Date: Apr 2014 Posts: 13 Rep Power: 12	Looks like not many people around willing to help

August 18, 2015, 10:04		#3
owayz Senior Member Awais Ali Join Date: Feb 2010 Location: Germany Posts: 128 Rep Power: 17	Hey Pras, Did you solve the problem? I seem to have the same problem. Any suggestions? Regards, Awais