CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

finding difficulty in dynamic meshing for ic engin

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   December 8, 2006, 02:59
Default finding difficulty in dynamic meshing for ic engin
  #1
inderpreet saini
Guest
 
Posts: n/a
i am simulating ic engine combustion in 3d in fluent i am finding difficulty for moving mesh conditions. please help. tell me some case file swith amoving piston and a deforming mesh

  Reply With Quote

Old   October 18, 2012, 08:50
Default
  #2
New Member
 
JOBIN
Join Date: Oct 2012
Posts: 3
Rep Power: 4
strider12 is on a distinguished road
I too am trying to simulate a 3d modelling of an Si engine. I did not find any tutorials for 3d models. If someone has any tutorials or knew how to do it please reply.
strider12 is offline   Reply With Quote

Old   October 18, 2012, 09:02
Default
  #3
Senior Member
 
Marion
Join Date: Jul 2012
Location: France
Posts: 122
Rep Power: 6
Marion is on a distinguished road
Hi,

I think the best is to ask your Fluent support team, but a 3D model is not much different from a 2D model in that case, as the displacement is only in 1 direction. It can be more difficult if you are modelling the valves as well.

By the way - what do you want to know? how to set up the MDM strategy, or how to use the "in cylinder option" in Fluent?

Regards,
Marion.
Marion is offline   Reply With Quote

Old   October 19, 2012, 14:20
Default
  #4
New Member
 
JOBIN
Join Date: Oct 2012
Posts: 3
Rep Power: 4
strider12 is on a distinguished road
Thanks for the reply . I had made a model and meshed it using automatic meshing. I am not modelling the valve motion. But when I tried to give a dynamic mesh , it failed saying negative volume . I had given the options for remishing minimum and maximum size as 0.4 and 1.4 times the average length.I had given real values for the in cylinder option.The amplitude of the motion was too large .
Also when i tried to visualize the zone motion i was only able to view the piston,not meshes or side walls or cylinder head.
Actually i had given the parameters based on a tutorial on 2d dynamic mesh .Is there any significant change for 3d modelling . Thanking you in advance for your reply
.

Last edited by strider12; October 19, 2012 at 15:16.
strider12 is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dynamic meshing Manoj Kumar FLUENT 3 June 27, 2010 19:26
Dynamic Meshing with Flow 3D M_Agni FLOW-3D 1 June 13, 2010 18:20
[GAMBIT] Dynamic Meshing of a combustion chamber donarundas ANSYS Meshing & Geometry 1 December 2, 2009 08:13
Issues with dynamic meshing sridhu88 FLUENT 1 June 11, 2009 16:46
help for dynamic meshing for incylinder combustion Ramesh K FLUENT 0 June 19, 2006 06:29


All times are GMT -4. The time now is 22:31.