CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

boundary conditions

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 30, 2009, 08:26
Cool boundary conditions
  #1
New Member
 
Amaury devulder
Join Date: Sep 2009
Posts: 2
Rep Power: 0
amaury devulder is on a distinguished road
Hello,

I am studying the effect of a turbomachine immersed in a large pool of water.

I want to reduce the size of the pool to increase the speed of calculation. Indeed, the pool is much too large.

What boundary conditions should I apply to the walls of the pool to reduce it?

Thank you for your help.

Antoine

Last edited by amaury devulder; September 30, 2009 at 10:59.
amaury devulder is offline   Reply With Quote

Old   September 30, 2009, 23:42
Default
  #2
Senior Member
 
N/A
Join Date: Mar 2009
Posts: 177
Rep Power: 7
harishg is on a distinguished road
Use of wall BC on a small pool size will change the problem physics. Are you interested in studying the effect of the wall? Are you interested in the turbomachine performance only? If you are interested in the second option, you can use the farfield boundary conditions. A lot of work has been done on farfield boundary conditions.
harishg is offline   Reply With Quote

Old   October 2, 2009, 14:27
Default
  #3
New Member
 
Josh
Join Date: Sep 2009
Posts: 14
Rep Power: 7
jstults is on a distinguished road
Quote:
Originally Posted by harishg View Post
you can use the farfield boundary conditions
For your use in finding references, some folks call them non-reflecting boundary conditions, or characteristic boundary conditions.
jstults is offline   Reply With Quote

Reply

Tags
walls boundary conditions

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
symmetry boundary conditions in cfx lost.identity CFX 41 May 22, 2013 07:21
Impinging Jet Boundary Conditions Anindya Main CFD Forum 24 January 11, 2012 13:40
Problems with boundary conditions for a lowRekOmegaSST turbulence model cfdmarkus OpenFOAM Running, Solving & CFD 16 November 14, 2011 04:44
Pressure boundary conditions Lionel S. Main CFD Forum 1 August 24, 2007 18:03
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15


All times are GMT -4. The time now is 19:48.