Fluid Structure Interaction

[joe2002]

Hi

I am using Nastran 70 to evaluate a Fluid Structure interaction, which means that I am using a card 111.

There is one parameter, ACMODL, that determines the interface between the fluid and the structure.

The nodes are absolutely coincidents, so I could use both DIFF or IDENT in the parameter ACMODL. But, the results are different for the structural points. Which should I use, DIFF or IDENT.

Thanks a lot.

Joe Joe
Escola Politécnica
Universidade de São Paulo

 

[NicolasJobert]

Joe,

I suggest that you post your question on this forum, which is dedicated to Nastran:

http://lists.dundee.net/cgi-bin/lyris.pl?enter=msc.nastran&text_mode=0&lang=english

Anyway, if you have some clear and simple examples of fluid-structure interaction problems solved with Nastran, I would be delighted to receive some !

Good luck.

Nicolas