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-   -   Fluid structure interaction with ANSYS-CFX (http://www.cfd-online.com/Forums/cfx/85307-fluid-structure-interaction-ansys-cfx.html)

Amol February 22, 2011 14:15

Fluid structure interaction with ANSYS-CFX
 
i want to study panel flutter with two way fluid structure interaction in ansys-cfx, does anybody knows the good tutorial or procedure for the same?
plz share if you know, thank you....

tctczxh February 22, 2011 14:36

there is one in the CFX-tutorial about oscillating plate and FSI method using workbench, guess you've already tried this one.

Amol February 23, 2011 11:26

Quote:

Originally Posted by tctczxh (Post 296477)
there is one in the CFX-tutorial about oscillating plate and FSI method using workbench, guess you've already tried this one.

I did that tutorial before going into my problem, i am doing flutter analysis with two way FSI, coupling ANSYS(transient analysis system) and CFX. structural domain is panel of 5 mm thickness and fluid has supersonic flow above it. now problem is that when i am keeping large deflection ON in mechanical part of the ANSYS (i.e. by doing this i am considering geometric non linearity in panel) panel shows nice limit cycle oscillations in it (without giving any initial disturbance to panel). but when i am doing same simulation keeping large deflection OFF (i.e. geometric nonlinearity removed), it should show large deflections in panel and amplitude should increase with time, instead of limit cycle oscillations. but don't know why i am getting very small deflections in panel (amplitude of just some nanometers). what might be going wrong?? please help................

Shabi1992 November 29, 2015 09:36

Quote:

Originally Posted by Amol (Post 296473)
i want to study panel flutter with two way fluid structure interaction in ansys-cfx, does anybody knows the good tutorial or procedure for the same?
plz share if you know, thank you....

Hello,
Could you find a good tutorial for your project?
Now I have a problem with flutter like you and I will happy if you can introduce me the tutorials.
Thank you


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