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

Recommend some boundary conditions for a DES

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 1, 2013, 04:06
Default Recommend some boundary conditions for a DES
  #1
siw
Senior Member
 
Join Date: Jul 2009
Posts: 446
Rep Power: 14
siw will become famous soon enough
Hi,

For a DES of a flat plate in a domain similar to that in:

http://turbmodels.larc.nasa.gov/flatplate_val.html

but in my case there's also an obstacle on the plate. Also my domain size is larger and in 3D, but periodic BC sorts out the spanwise sides.

What would be the recommended DES boundary conditions where the image in the hyperlink shows symmetry and farfield Riemann BC?

Symmetry should not be used in any DES (or LES) so will Fluent allow an outlet here so that any flow fluctuation can either exit or enter without any reflection or other constraint? Also can the same be used for the fafield Riemann BC? In my case the flow is incompressible so the Fluent pressure-farfield is not suitable as that is for compressible flow.

Thanks.
siw is offline   Reply With Quote

Reply

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
Question about heat transfer coefficient setting for CFX Anna Tian CFX 1 June 16, 2013 06:28
Low Mixing time Problem Mavier CFX 5 April 29, 2013 00:00
boundary conditions and mesh exporting vaina74 Open Source Meshers: Gmsh, Netgen, CGNS, ... 2 May 27, 2010 09:38
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15
A problem about setting boundary conditions lyang Main CFD Forum 0 September 19, 1999 18:29


All times are GMT -4. The time now is 01:20.