A question about the dynamic mesh UDF

November 26, 2003, 08:50

Hi, I want to simulate the flow in a cavity with a oscillating membrane at its bottom. Dynamics mesh should be used for this case. Now I know the shape and velocity of the membrane. How to write the UDF? Is it enough if I write the UDF only use the Macro DEFINE_GEOM without using DEFINE_GRID_MOTION? Any suggestions will be greatly appreciated.

Tango

November 27, 2003, 02:56

hi Tango,

you are right. The interior grid nodes will be positioned automatically by solver.

good luck.

November 26, 2003, 08:50	A question about the dynamic mesh UDF	#1
Tango Guest Posts: n/a	Hi, I want to simulate the flow in a cavity with a oscillating membrane at its bottom. Dynamics mesh should be used for this case. Now I know the shape and velocity of the membrane. How to write the UDF? Is it enough if I write the UDF only use the Macro DEFINE_GEOM without using DEFINE_GRID_MOTION? Any suggestions will be greatly appreciated. Tango

November 27, 2003, 02:56	Re: A question about the dynamic mesh UDF	#2
ccc Guest Posts: n/a	hi Tango, you are right. The interior grid nodes will be positioned automatically by solver. good luck.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Dynamic mesh examples using Fluent 6.1 and Udf	RAMESH K	FLUENT	2	July 22, 2010 22:47
UDF MESH DYNAMIC	Benzamia	FLUENT	1	May 8, 2006 14:59
Dynamic mesh udf example	avant	FLUENT	2	September 16, 2005 01:24
UDF, dynamic mesh motion	phil	FLUENT	0	September 15, 2004 05:42
udf compilation for dynamic mesh	Rahul	FLUENT	10	June 27, 2003 22:10