Fluid Solid Interaction - divergence

May 5, 2005, 05:02

Hi,

I am modeling a wind blade using Fluid Solid Interaction (FSI). I choose Fluid Analysis first.

At the first Solid Analysis, the displacements of the blade are zero. At the second Solid Analysis, the displacements of the blade are about what I expect they are. Afterwards, the displacements of the blade are getting bigger and bigger at each Solid Analysis…

Does anybody already have this problem?

Thank you for your help. Seb

May 5, 2005, 19:46

Not sure, but it sounds like you need some form of relaxation between the CFD & FEA simulations, but i might be completely wrong!

May 5, 2005, 05:02	Fluid Solid Interaction - divergence	#1
bebes Guest Posts: n/a	Hi, I am modeling a wind blade using Fluid Solid Interaction (FSI). I choose Fluid Analysis first. At the first Solid Analysis, the displacements of the blade are zero. At the second Solid Analysis, the displacements of the blade are about what I expect they are. Afterwards, the displacements of the blade are getting bigger and bigger at each Solid Analysis… Does anybody already have this problem? Thank you for your help. Seb

May 5, 2005, 19:46	Re: Fluid Solid Interaction - divergence	#2
James Date Guest Posts: n/a	Not sure, but it sounds like you need some form of relaxation between the CFD & FEA simulations, but i might be completely wrong!

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