Fluid Solid Interaction - divergence

May 5, 2005, 04:02

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, 18:46

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, 04:02	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, 18:46	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!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
problem with Min/max rho	tH3f0rC3	OpenFOAM	8	July 31, 2019 09:48
Can CFX do CHT simulations with a solid domain rotating in a stationary fluid domain?	acro	CFX	15	September 23, 2016 11:16
Fluid Structure Interaction	Apollo	Main CFD Forum	5	July 4, 2011 16:15
Theory behind the solid domain rotation in fluid using Bets property	Riken	CFX	0	October 28, 2009 09:51
Fluid - Solid Domain Interface	Daniel	CFX	6	February 15, 2009 18:09