UDF for FSI simulation

ppa381 · October 24, 2009, 01:34

Hello does anyone have any files or know of any websites or tutorials that would be of help for writing a UDF file for grid motion for a deforming mesh. I already read through the Fluent UDF manual and seen the example on the fluentusers.com site for oscillating membrane. I need to solve a problem for 2-way fluid structure interaction. I cannot couple with other programs so I must write a UDF, but it is very challenging for grid motion; I do not know C programming very well. Any help would be appreciated, thanks. (Model is a pulsating pressure through a tube)

Atze · March 10, 2011, 03:33

Hi,

i have the same problem... have you found anything?

RAJEEV · July 1, 2011, 00:39

i wannu do use airfoil fsi problem using fluent and any structural software..... how shld i proceed..... help me

Atze · July 1, 2011, 04:20

To Rajeev

Hi, I found out Ansys 13 can perform 2way FSI analisys coupling Structural solver with CFX (but not with fluent).

regards

RAJEEV · July 3, 2011, 23:52

Thanks Atze..... ansys uses FEM based...... but v r doing FVM based.... fluent is giving correct results.... but i came to know that fluent has fsi feature ( c file menu n go for fsi mapping ) but we need to use UDF.... so anyone knowing abt this plz reply

October 24, 2009, 01:34	UDF for FSI simulation	#1
ppa381 New Member Join Date: Jul 2009 Posts: 9 Rep Power: 16	Hello does anyone have any files or know of any websites or tutorials that would be of help for writing a UDF file for grid motion for a deforming mesh. I already read through the Fluent UDF manual and seen the example on the fluentusers.com site for oscillating membrane. I need to solve a problem for 2-way fluid structure interaction. I cannot couple with other programs so I must write a UDF, but it is very challenging for grid motion; I do not know C programming very well. Any help would be appreciated, thanks. (Model is a pulsating pressure through a tube)

July 1, 2011, 00:39	fsi	#3
RAJEEV New Member Rajeev KT Join Date: Jun 2011 Location: Bangalore Posts: 6 Rep Power: 14	i wannu do use airfoil fsi problem using fluent and any structural software..... how shld i proceed..... help me

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March 10, 2011, 03:33		#2
Atze Member Join Date: Apr 2010 Location: Pisa / Italy Posts: 62 Rep Power: 16	Hi, i have the same problem... have you found anything?

July 1, 2011, 04:20		#4
Atze Member Join Date: Apr 2010 Location: Pisa / Italy Posts: 62 Rep Power: 16	To Rajeev Hi, I found out Ansys 13 can perform 2way FSI analisys coupling Structural solver with CFX (but not with fluent). regards

July 3, 2011, 23:52		#5
RAJEEV New Member Rajeev KT Join Date: Jun 2011 Location: Bangalore Posts: 6 Rep Power: 14	Thanks Atze..... ansys uses FEM based...... but v r doing FVM based.... fluent is giving correct results.... but i came to know that fluent has fsi feature ( c file menu n go for fsi mapping ) but we need to use UDF.... so anyone knowing abt this plz reply