How to define Dynamic Mesh boundary condition? -- CFD Online Discussion Forums

February 11, 2004, 08:48	How to define Dynamic Mesh boundary condition?	#1
David Guest Posts: n/a	I want to simulate a FSI problem like wind acting on a flexible structure using loose coupling method based on the Fluent and structure analysis software .The dynamic mesh model was employed in Fluent to calculate the pressure. In each time step, it needed to define the velocity on the dynamic boudaries, which calculated from the CSD on the discrete nodes. My problems are: 1. I don't know how to define this dynamic boundary. Using UDF or Profile?and How? Could you illustrate me a example? 2.How to determine the time step to avoid the oscillation during the calculation? Any suggestion would be great appreciated.David

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
increasing mesh quality is leading to poor convergence	tippo	CFX	2	May 5, 2009 10:55
Free surface boudary conditions with SOLA-VOF	Fan	Main CFD Forum	10	September 9, 2006 12:24
Dynamic Temperature Boundary Condition	Kshitij	FLUENT	0	October 12, 2005 13:40
How to define dynamic mesh model B.C using Profile	David	FLUENT	3	February 18, 2004 16:57
How to define the boundary condition	Merkle	FLUENT	0	December 1, 2000 04:01

All times are GMT -4. The time now is 22:50.