CFD Online Logo CFD Online URL
Home > Forums > CFX

Dual temperature boundary condition

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

LinkBack Thread Tools Display Modes
Old   June 3, 2003, 04:46
Default Dual temperature boundary condition
Posts: n/a
I need to specify an atmospheric boundary, where the specified temperature is dependent on the flow direction. For flow into the domain, the specified temperature should be the ambient atmospheric value, but for flow out of the domain I want to specify a zero-gradient condition. I know CEL would probably be the way to do this, but how? The problem basically is how to "detect" whether the flow in into or out of the domain at the boundary, and if out, how do I specify a zero gradient? I'm using CFX 5.5.1


  Reply With Quote

Old   June 3, 2003, 21:58
Default Re: Dual temperature boundary condition
Posts: n/a
Hi Louwrens,

This is what you get when you use an opening. If flow is coming into the domain, the temperature is whatever you specified; if flow is exiting the domain, the temperature is determined by the upstream condition (zero gradient at outlet).

Regards, Robin
  Reply With Quote

Old   June 4, 2003, 03:58
Default Re: Dual temperature boundary condition
Posts: n/a
Oh the bliss...
  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
Domain Imbalance HMR CFX 5 October 10, 2016 05:57
Temperature dependant mixed Boundary condition argonaut OpenFOAM Pre-Processing 2 February 15, 2011 12:02
How to apply the temperature boundary condition on the outside of the mould? alefem FLOW-3D 5 May 25, 2010 05:32
Pressure Boundary Condition Matt Umbel Main CFD Forum 0 January 11, 2002 11:06
boundary condition : temperature J.D.Yoon FLUENT 1 August 29, 2000 04:08

All times are GMT -4. The time now is 05:38.