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Old   July 4, 2010, 09:38
Default Deforming mesh in fluent
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Hi,

My problem is as follows. A deformable container with a minute opening contains fluid. When the walls are compressed the fluid should be forced through the opening. Suggest me suitable methods involving deforming meshes and using user defined functions for the same using Fluent.
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Old   July 4, 2010, 20:45
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Jemyung Cha
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I think deformable problem can be solved with dynamic mesh module in fluent.
and I have a presentation material including introduction and tutorial.
Let me know your email address. I can send pdf file to you.
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Old   July 5, 2010, 13:54
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Thanks a lot Jemyungcha. My e mail: hari1041988@yahoo.com
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Old   September 27, 2010, 10:47
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please send to my email roryhelto@gmail.com
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Old   September 27, 2010, 11:13
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Depends on the geometry of the container. For example if it is a cylinder like a can you could apply a sinusoidal deforming profile along the cylinder walls like crushing the can in your hand for which I would say take a look at the 2D tutorial which has a flexible oscillating membrane from which you can adapt the UDF to 3D. Or if it is being deformed axially like treading on the can with your foot take a look at the 3D tutorial for the in-cylinder model which describes piston movement. Most likely whatever you are doing you will need to be using a tetrahedral mesh using the spring analogy and smoothing but you will get a better idea if you have a look at the afore mentioned tutorials.

Neil
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Old   December 7, 2010, 14:58
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Neil Duffy
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Hi,

Jemyungcha and Trev, would you both be able to send me the files you mentioned. I have Fluent 12 and the deformation tutorial covers rigid body motion only - the users guide isn't much better. Much appreciated.

Neil
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Old   December 7, 2010, 19:34
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Hello guys! Can you send files me too. My e-mail: go_the_way_06@yahoo.com
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Old   December 8, 2010, 03:15
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Send me plz,,
huget_teguh@ymail.com
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Old   December 9, 2010, 19:50
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Hi
would you send it to me as well, will be very interesting for me,
emruz246@yahoo.com
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Old   April 5, 2011, 18:20
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hi
Could you please upload it to mediafile or somewhere.
so every one can download it.
thanks
hung
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Old   April 6, 2011, 13:53
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Hi Jemyungcha
would you send it to me as well, will be very interesting for me,
mah0809@gmail.com
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Old   May 1, 2011, 23:45
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LXH029803@YAHOO.COM.CN thank YOU
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Old   May 15, 2012, 06:40
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Hello
I'm joining the request for tutorial/introduction files for deforming mesh. If anyone can shed some light on this problem it will be a great help.
Thank you
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Old   June 26, 2012, 11:20
Default Deforming mesh in FLUENT
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Ajinkya Desai
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Hi,
I have an oscillating fin in FLUENT. It keeps giving me a negative volume error.
1. In the computational setup, the fin is assigned the UDF for oscillation and I have set the default interior as a dynamic deforming mesh. Is this correct?

2. Remeshing and smoothing have been used, with a spring constant factor of 0.5 for the fin faces and the default interior. Apart from these, should any other faces be remeshed?

Thank you.
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Old   June 27, 2012, 02:06
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I had a similar solution. It was solved when I changed the smoothing scheme to "diffusion" (0.9).
you can also try using a smaller time step.
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Old   June 28, 2012, 22:47
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Ajinkya Desai
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Thanks, but the problem was solved. I shud not have used default interior for deforming, rather its the domain name.
Thanks anyway.
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Old   June 29, 2012, 02:23
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Can you send me the pdf file too?
Thanks.
My email is kohvoonli@gmail.com
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Old   June 30, 2012, 11:48
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Hi all,

i,m working on dynamic mesh.


please send me the same file to me please!!!!

tmeysam92@yahoo.com
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Old   July 1, 2012, 02:19
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I don't think the file really exists. I found the UDF manual pretty helpful (I took the example they used for deforming mesh, and changed it according to my needs). good luck
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Old   July 1, 2012, 13:09
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Ajinkya Desai
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For those of you looking for the pdf file for User Defined Functions here is the link...
http://www.hipecc.wichita.edu/pdfs/fludf.pdf
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