Request for guidance on learning fluid-structure interaction (FSI) implementation with GetFEM

[Djoumessi]

Dear community,

I hope you are all doing well.

I am currently trying to learn how to implement fluid-structure interaction (FSI) problems using GetFEM. While I have found some examples and documentation related to solid mechanics and fluid dynamics separately, I have not been able to find clear resources or tutorials combining the two.

Could anyone please recommend references, example codes, or documentation that could help me understand how to couple the fluid and structural solvers within GetFEM?
Any advice, example scripts, or even hints on how to start building such a problem (e.g., handling mesh motion, coupling conditions, or ALE formulation) would be greatly appreciated.

Thank you very much for your time and help.

Best regards,
Thierry

[Konstantinos.Poulios]

hi, have you checked the instructions and code I provided in this thread?

How to achieve dynamic mesh in getfem?

Here is a test case about fluid-structure interaction from FreeFEM. After solving the elasticity displacement of the solid, I have to remap the mesh or DOFs according to the displacement solution on the interaction surface. FreeFEM has a simple function movemesh to do this, but I can’t find a similar function in getfem. Could anyone please tell me how to achieve this in getfem?