CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Spring smoothing

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

LinkBack Thread Tools Display Modes
Old   October 29, 2007, 15:06
Default Spring smoothing
Posts: n/a

I have an internal flow model utilizing dynamic meshing where I am unable to smoothen the mesh on wall surfaces. A UDF moves an interface which subsequently is supposed to trigger an update on neighbouring nodes through SET_DEFORMING_THREAD_FLAG (THREAD_T0 (trd)); I use

def mo un y

so upd

def mo st y

to trigger the UDF as it was implemented in a transient setting. I've defined a plane on which the wall nodes can move:

Define.Dynamic Mesh.Zones.Geometry Definition.plane

and spring smoothing:

Define.Dynamic Mesh.Zones.Meshing Options.smoothing & spring

I've also activated smoothing for all elements. The smoothing works great for volumes... During relaxation, however, the mesh on the walls are not updated resulting in left handed faces. I've tried to smoothen the grid manually with Grid.smooth, but this only affects internal nodes.

If I could smoothen the face nodes by a manual call, all would be fine (could include it in a journal file). The best solution would however for the automated dynamic meshing to kick in

Btw... I've successfully made a working 2D-model with the same relaxation parameters and basic functionality.
  Reply With Quote


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 valve motion but no mesh motion with smoothing slaol2 FLUENT 1 September 22, 2011 18:06
Hexa smoothing (ICEM CFD 10.0) CFDworker CFX 3 November 2, 2005 11:23
How to use Hexa smoothing function? Nick CFX 2 October 5, 2004 23:47
Help me to active Spring Based Smoothing!!! Atefeh FLUENT 0 September 29, 2004 15:32
How can I active spring Based Smoothing?? svh FLUENT 0 September 26, 2004 14:13

All times are GMT -4. The time now is 21:14.