CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Dynamic mesh help - Deposition process

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

LinkBack Thread Tools Display Modes
Old   April 8, 2010, 17:12
Thumbs down Dynamic mesh help - Deposition process
Tim Diller
Join Date: Mar 2010
Location: Austin, TX
Posts: 32
Rep Power: 7
TDi is on a distinguished road
I'm trying to model the heat transfer in a solid which is growing through deposition. Using a UDF, I'm able to move one of the boundaries in time to accurately simulate the growth, but I'm running into two problems:
1 - the grid_motion is taking longer and longer with each step. After I move the boundary ~10 times, the iterations are taking 60s and longer. This is with no calculations, only previewing the mesh motion.
2 - the remeshing never adds any nodes, so the skewness value is getting close to 1 for the cells along the boundary zones that I'm moving. I'm using the dynamic mesh option with layering and remeshing turned on.

Can anyone tell me a way to force Fluent to refine the mesh along a boundary, either by the options or from within a UDF?

Many thanks,

PS - I previously posted this is in the wrong forum. Sorry for the repeat.
TDi is offline   Reply With Quote

Old   February 13, 2013, 11:55
New Member
Join Date: Mar 2012
Posts: 6
Rep Power: 5
CCarl is on a distinguished road
How did you eventually make this work? I am facing a similar problem.
CCarl is offline   Reply With Quote


deposition, dynamic mesh, fluent 6.0, grid adaption, 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
3D Hybrid Mesh Errors DarrenC ANSYS Meshing & Geometry 11 August 5, 2013 06:42
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 18:10
Dynamic Mesh Pj FLUENT 1 March 12, 2007 16:16
Dynamic Mesh Problem - please help! Hila FLUENT 0 August 19, 2006 04:19
dynamic (hex) mesh daniel FLUENT 3 July 20, 2005 08:32

All times are GMT -4. The time now is 13:35.