CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Fluent UDF and Scheme Programming

Dynamic Mesh Problems

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 7, 2012, 07:09
Question Dynamic Mesh Problems
  #1
New Member
 
Join Date: May 2012
Posts: 3
Rep Power: 4
DSMeck is on a distinguished road
Hi everyone,

I have some problems in simulating a 3d store seperation with Fluent 13.0.

I am not sure if it is nessesary to use a cg-motion_udf in combination with 6dof_prop_udf for this movement. Is a 6dof_prop function sufficient?

The more important problem is the remeshing option. Everytime I get negative elements. I tried nearly everything I found about this problem. (reducing timesteps...). Finally it seems like this option doesn´t work with pyramide cells.
But my geometry is very complex and the boundary conditions are very important. Because of this I need a structured inflation. How can I manage this?

Is somebody able to help me? Thanks for your help.

Regards,
DSMeck
DSMeck is offline   Reply With Quote

Reply

Tags
6 dof, cg_motion, negative volume, remeshing, udf

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
Problems with Dynamic Mesh: DEFINE_GRID_MOTION Claudia FLUENT 11 September 25, 2013 14:23
snappyHexMesh won't work - zeros everywhere! sc298 OpenFOAM Native Meshers: snappyHexMesh and Others 2 March 27, 2011 21:11
Several problems with the mesh conversion utility when converting the meshes from Gridgen su_junwei OpenFOAM Meshing & Mesh Conversion 2 July 26, 2008 23:58
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 11:55
Can Fidap solve dynamic mesh problems? Sandy FLUENT 0 September 29, 2003 00:45


All times are GMT -4. The time now is 09:40.