CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

Boundary Conditions Definitions for Gambit

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

LinkBack Thread Tools Display Modes
Old   August 11, 2009, 14:28
Default Boundary Conditions Definitions for Gambit
New Member
Join Date: Aug 2009
Posts: 4
Rep Power: 8
ntonkin is on a distinguished road
I'm new to CFD. I'm using Gambit and Fluent. I'm reading and going through tutorials that have been set up by Cornell university.

They state "Also,read through the documentation for a boundary condition option to understand what it does before you use it (it might not be doing what you expect)" I can not find any documentation from Gambit that has this information. Can anyone send me in the right direction?

ntonkin is offline   Reply With Quote

Old   August 13, 2009, 12:37
Troy Snyder
Join Date: Jul 2009
Location: Akron, OH
Posts: 90
Rep Power: 9
tas38 is on a distinguished road
I believe the comment is in regard to boundary condition specification for the type of flow problem. Different boundary conditions are necessary depending upon the flow physics involved.

For example, for supersonic flows, pressure far-field boundary conditions are often employed. On such a boundary, the mach number and static conditions are specified. Such a boundary condition requires the activation of the ideal-gas model--this is noted in section 7.9 of Fluent users guide ver 6.3. If your flow were subsonic and it was desireable to specify a constant density, such a boundary condtion would be erroneous.

The fluent user's guide often suggests the conditions in which a specific boundary conditions would be applicable.
tas38 is offline   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
Impinging Jet Boundary Conditions Anindya Main CFD Forum 24 January 11, 2012 14:40
Problems with boundary conditions for a lowRekOmegaSST turbulence model cfdmarkus OpenFOAM Running, Solving & CFD 16 November 14, 2011 05:44
Pressure boundary conditions Lionel S. Main CFD Forum 1 August 24, 2007 18:03
I-DEAS CAD data import with boundary conditions Yunus CD-adapco 1 June 1, 2001 10:04
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 21:57.