Modelling deforming inflatable geometry in Fluent

October 3, 2006, 18:34

I'm trying to model the fluid structure interaction of inflatable geometry in Fluent. I would like to use a UDF to perform simple structural calculations and deform the mesh accordingly.

Is it possible to locally modify the mesh from within a UDF? The deforming mesh tools within Fluent 6.2 seem to be designed for rigid body motion, rather than localised deformation.

Any ideas?

Regards, Mark

October 4, 2006, 02:54

I have never done it my self but the DEFINE_CRID_MOTION() macro can be used to deform the grid.

October 4, 2006, 06:36

That looks very promising! Thanks

October 3, 2006, 18:34	Modelling deforming inflatable geometry in Fluent	#1
Mark Guest Posts: n/a	I'm trying to model the fluid structure interaction of inflatable geometry in Fluent. I would like to use a UDF to perform simple structural calculations and deform the mesh accordingly. Is it possible to locally modify the mesh from within a UDF? The deforming mesh tools within Fluent 6.2 seem to be designed for rigid body motion, rather than localised deformation. Any ideas? Regards, Mark

October 4, 2006, 02:54	Re: Modelling deforming inflatable geometry in Flu	#2
Dushan Guest Posts: n/a	I have never done it my self but the DEFINE_CRID_MOTION() macro can be used to deform the grid.

October 4, 2006, 06:36	Re: Modelling deforming inflatable geometry in Flu	#3
Mark Guest Posts: n/a	That looks very promising! Thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[ICEM] [FLUENT] 2D Geometry problem when exporting to Fluent - Unwanted walls	MikeTichondrius	ANSYS Meshing & Geometry	1	February 9, 2011 14:31
Engine modelling using fluent - advice	nat2479	FLUENT	0	February 1, 2011 15:18
Plsama modelling in FLUENT	Homayoon	FLUENT	1	March 24, 2009 12:24
HELP!:CFD modelling using FLUENT in swimming pool	Tee	Main CFD Forum	0	September 7, 2005 21:48
Fluent near wall modelling	Andreas Abdon	FLUENT	0	December 19, 2000 12:44