CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Difference between empty and symmetryPlane

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 17, 2010, 18:13
Default Difference between empty and symmetryPlane
  #1
New Member
 
Join Date: Mar 2009
Posts: 22
Rep Power: 17
Baldy is on a distinguished road
I understand when and where to use empty and symmetryPlane boundary conditions.

I wanted to know exactly what the difference were between them. Say you have a mesh with one element thick, would using the symmetryPlane boundary condition instead of empty yield the same results?
Baldy is offline   Reply With Quote

Old   August 18, 2010, 03:41
Default
  #2
Senior Member
 
sega's Avatar
 
Sebastian Gatzka
Join Date: Mar 2009
Location: Frankfurt, Germany
Posts: 729
Rep Power: 20
sega is on a distinguished road
As far as I can tell the empty-condition will tell OpenFOAM it should not solve the flow field in the normal direction of the patch is is imposed on.
This is the case when trying to solve 2D (or even 1D) problems with OpenFOAM - which is per se a 3D solver. I'm not sure how this is handled from inside the code.

The symmetryPlane-condition will impose Neumann boundary conditions on the patch it is imposed on.
__________________
Schrödingers wife: "What did you do to the cat? It's half dead!"
sega is offline   Reply With Quote

Reply

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
pipe flow with heat transfer Fabian OpenFOAM 2 December 12, 2009 05:53
Problems with Turbulence Modeling ezsoal OpenFOAM Running, Solving & CFD 4 November 26, 2009 16:12
Flow Around a Cylinder ronaldo OpenFOAM 5 September 18, 2009 09:13


All times are GMT -4. The time now is 05:34.