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

Boussinesq approximation (temperature gradient range)

Register Blogs Community New Posts Updated Threads Search

 
 
LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old   December 12, 2016, 09:46
Question Boussinesq approximation (temperature gradient range)
  #1
New Member
 
a0407
Join Date: Aug 2016
Posts: 10
Rep Power: 9
azizi0407 is on a distinguished road
I'm simulating a natural convection in fluent using bossinesq approximation. I was told that the temperature gradient of the system cannot be large. So, what is the range of the tempareture gradient that acceptable to use in fluent?

In experimental works, Rayleigh number of the natural convection is varies by the change of the temperature gradient. In CFD, what variable can we change to increased the Rayleigh number as the temperature gradient cannot be increase too much?
azizi0407 is offline   Reply With Quote

 

Tags
boussinesq approximation, fluent, natural convection


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
question regarding LES of pipe flow - pimpleFoam Dan1788 OpenFOAM Running, Solving & CFD 37 December 26, 2017 14:42
Periodic flow using Cyclic - comparison with Fluent nusivares OpenFOAM Running, Solving & CFD 30 December 12, 2017 05:35
How to create a temperature gradient in thin wall and two dimensions leggman7 Main CFD Forum 0 October 29, 2013 23:21
temperature gradient for use in surface monitor Catherine FLUENT 1 August 24, 2012 09:10
Boussinesq approximation, help please! engahmed FLUENT 0 May 20, 2010 11:25


All times are GMT -4. The time now is 13:10.