Elmer Discussion Forum

Hi,

I would like to know how can I put a normal acceleration on Elmer?

Best regards,

Slim

Hi,

I think that I was too vague in my first post. I would like to know how can I put normal acceleration in a case of an acoustic-structure interaction to couple the frequency response of a solid back to the acoustic problems?

BR, Slim

Hi Slim

There has bee a rather laborious way to do this. However, the Holmholtz solver has basically had some built-in features to account for coupling to external harmonic fields (velocity & displacement). I revisited this piece of code today and there is a fresh example under tests, HelmholtzStructure, that uses a given eigenmode to compute the force on the fluid boundary. To run this you need a fresh version (rev. >= 5257).

-Peter

Hi Peter,

Thanks a lot for your help, that was very beneficial for my work. However, I'd like also to know how can I see or reach the feedback answer of the fluid on the structure in a case for example of a structure filled with a fluid. Again, thanks for your help.

BR, Slim