deforming mesh

ppa381 · October 21, 2009, 11:00

hello,

I am shooting a pulsating flow of water into a straight tube. I would like the tube to deform from the pulsating pressure. Can this be done by just using the deforming mesh options without using a udf file? thanks.

-mAx- · October 22, 2009, 01:50

this is a fsi model (fluid structure interaction).
without udf you cannot....

ppa381 · October 22, 2009, 12:43

thanks max, what kind of udf is needed? A DEFINE_GEOM or DEFINE_GRID_MOTION or some other kind?

-mAx- · October 22, 2009, 13:52

I already tried it, but don't remember anymore since we switched to OpenFOAM.
But I believe it is: DEFINE_GRID_MOTION

Check Help Chapt 2.6 Dynamic Mesh DEFINE Macros

ppa381 · October 22, 2009, 14:52

alright thanks for the help

October 21, 2009, 11:00	deforming mesh	#1
ppa381 New Member Join Date: Jul 2009 Posts: 9 Rep Power: 16	hello, I am shooting a pulsating flow of water into a straight tube. I would like the tube to deform from the pulsating pressure. Can this be done by just using the deforming mesh options without using a udf file? thanks.

October 22, 2009, 01:50		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	this is a fsi model (fluid structure interaction). without udf you cannot.... __________________ In memory of my friend Hervé: CFD engineer & freerider

October 22, 2009, 13:52		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	I already tried it, but don't remember anymore since we switched to OpenFOAM. But I believe it is: DEFINE_GRID_MOTION Check Help Chapt 2.6 Dynamic Mesh DEFINE Macros __________________ In memory of my friend Hervé: CFD engineer & freerider

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October 22, 2009, 12:43		#3
ppa381 New Member Join Date: Jul 2009 Posts: 9 Rep Power: 16	thanks max, what kind of udf is needed? A DEFINE_GEOM or DEFINE_GRID_MOTION or some other kind?

October 22, 2009, 14:52		#5
ppa381 New Member Join Date: Jul 2009 Posts: 9 Rep Power: 16	alright thanks for the help