CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT


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

LinkBack Thread Tools Search this Thread Display Modes
Old   August 19, 2009, 14:04
Default Dynamic Mesh (DEFINE_GRID_MOTION)
New Member
Ted Harding
Join Date: Jun 2009
Posts: 1
Rep Power: 0
emh7149 is on a distinguished road
I would like to transform/change a boundary condition in the middle of a simulation.

I have had success using a UDF and the DEFINE_GRID_MOTION routine to prescribe a desired wall movement in previous models. The next step is to use the UDF in a more complex model.

The problem with the new model is that as the walls move, they come into contact with one another which soon after causes an error. I would like to keep a wall boundary between the mesh when the walls come in contact (not allow flow to exchange in between the two walls).

So, as the moving mesh walls come in contact we would like the boundary condition to be switched from a moving wall to a stationary wall. This will allow the rest of the model to continue to move without error.
emh7149 is offline   Reply With Quote


boundary condition, dynamic mesh, grid motion

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
dynamic mesh on a hexa grid Manoj Kumar FLUENT 0 August 21, 2007 07:41
Dynamic mesh + grid adapt = Crash! (Files included BillH FLUENT 4 July 24, 2007 15:31
Dynamic Mesh Smoothing Sham FLUENT 4 July 10, 2007 20:08
dynamic mesh and grid adaption Dennis FLUENT 1 June 2, 2007 23:59
Help: Is it possible to use dynamic mesh model and Valery Ponyavin FLUENT 1 September 20, 2003 14:18

All times are GMT -4. The time now is 15:11.