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

Thermal expansivity

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 23, 2003, 05:30
Default Thermal expansivity
  #1
Atit Koonsrisuk
Guest
 
Posts: n/a
I am solving the problem about natural convection. I have set that there is the buoyancy effect when I define fluid model. I choose 'Air Ideal Gas' as the domain fluid. When I tried to modify some property of the template fluid, I found that in 'buoyancy property' of ideal gas the thermal expansivity is not specify explicitly. I would like to know that if I choose template 'Air Ideal Gas' as the domain fluid, and CFX have to use thermal expansivity in computation, what value of thermal expansivity will be used? Thank you.

Atit
  Reply With Quote

Old   June 26, 2003, 16:13
Default Re: Thermal expansivity
  #2
Phil
Guest
 
Posts: n/a
When using an ideal gas, the full buoyancy model is automatically set. Thermal expansivity is used only for the Boussinesq buoyancy model.
  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
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Anistropic thermal conduction in Fluent 6.2 Bharath FLUENT 0 November 23, 2006 22:07
Short Course: Computational Thermal Analysis Dean S. Schrage Main CFD Forum 11 September 27, 2000 17:46
Info: Short Course On Thermal Design of Electronic Equipment Arnold Free Main CFD Forum 0 August 10, 1999 10:18


All times are GMT -4. The time now is 21:03.