how can we get flutter speed from 2way fsi??

siddu.pk · December 29, 2013, 23:36

hello
i m doin transonic aeroelastic analysis over an airfoil so i need to find the flutter speed, so can anyone tel me the procedure to find the flutter speed plzz,
thank u

levivad · January 22, 2014, 05:24

In some cases you can use quasistatic aeroelastic theory to find the flutter speed. If it's good enough for you it, than you only need to calculate the lift coefficient depending on angle of attack.

If you want 2 way FSI, you can do a transient simulation. If you're above the critical velocity the flutter should develop by itself (just like a vortex street behind a cylinder). It's a very expensive calculation though.

siddu.pk · January 22, 2014, 22:35

thank you levivad

December 29, 2013, 23:36	how can we get flutter speed from 2way fsi??	#1
siddu.pk New Member siddu Join Date: Dec 2013 Posts: 11 Rep Power: 12	hello i m doin transonic aeroelastic analysis over an airfoil so i need to find the flutter speed, so can anyone tel me the procedure to find the flutter speed plzz, thank u

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January 22, 2014, 05:24		#2
levivad New Member Join Date: May 2013 Posts: 12 Rep Power: 12	In some cases you can use quasistatic aeroelastic theory to find the flutter speed. If it's good enough for you it, than you only need to calculate the lift coefficient depending on angle of attack. If you want 2 way FSI, you can do a transient simulation. If you're above the critical velocity the flutter should develop by itself (just like a vortex street behind a cylinder). It's a very expensive calculation though.

January 22, 2014, 22:35		#3
siddu.pk New Member siddu Join Date: Dec 2013 Posts: 11 Rep Power: 12	thank you levivad