(1) The cylinder would be modeled by shell elements. The inside volume of the cylinder would be modeled by "solid" elements, which would in turn refer to a material properties entry defining fluid properties (density, speed of sound, fluid damping coefficient, etc.).
(2) Using the same cylinder model as in (1), but without the solid elements, apply a uniform pressure load to the shell elements.
Since I have used NASTRAN exclusively for several years, I can't help you with the details of how to do this in ANSYS.
Harry Schwab
-----Original Message-----
From: enrico rossi [mailto:enrico_r2001@yahoo.com]
Sent: October 04, 2002 6:21 AM
To: harry.l.schwab@lmco.com
Subject: Some Questions, may you answere me.
Dear Professor Schwab,
Hi,
I'm very grateful for your reply,
The Questions that I asked is about
1- A cylindrical vessel tact filled completely by water, and maybe this is a type of model updating, I got modal parameter of and I want to get them by FEM (not by test), and the only software that I have is ANSYS.
How can I model the fluid by FEM especially by ANSYS?
2-In second case the vessel is filled by air, so vessel is under tension,
Best Regards,
Enrico,
This message has been edited by jariwaladeepak from IP address 63.109.246.250 on Oct 27, 2002 10:30 AM
Scoring disabled. You must be logged in to score posts.
