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

turbulence in air inside solar cooker?

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 24, 2012, 13:13
Default turbulence in air inside solar cooker?
  #1
Member
 
Vaibhav Rai Khare
Join Date: Jul 2011
Location: Jaipur
Posts: 37
Rep Power: 15
vaibhavraikhare is on a distinguished road
i am validating the result through FLUENT of solar cooker and now stuck in a problem.in solar cooker, the inside air tends to turbulence flow?? as there is no flow of inside air so what model should be used in that case?
vaibhavraikhare is offline   Reply With Quote

Old   April 24, 2012, 13:22
Default
  #2
Senior Member
 
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,751
Rep Power: 66
LuckyTran has a spectacular aura aboutLuckyTran has a spectacular aura aboutLuckyTran has a spectacular aura about
Quote:
Originally Posted by vaibhavraikhare View Post
i am validating the result through FLUENT of solar cooker and now stuck in a problem.in solar cooker, the inside air tends to turbulence flow?? as there is no flow of inside air so what model should be used in that case?
how can there be turbulent flow without flow?

I think you meant that there is no forced convective flows, there can still be free/natural convection (and this can be turbulent). Is this the case?
LuckyTran is offline   Reply With Quote

Old   April 24, 2012, 13:27
Default
  #3
Member
 
Vaibhav Rai Khare
Join Date: Jul 2011
Location: Jaipur
Posts: 37
Rep Power: 15
vaibhavraikhare is on a distinguished road
yeah..this is what i want to say??? so it should be turbulent or what???
vaibhavraikhare is offline   Reply With Quote

Old   April 24, 2012, 13:37
Default
  #4
Senior Member
 
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,751
Rep Power: 66
LuckyTran has a spectacular aura aboutLuckyTran has a spectacular aura aboutLuckyTran has a spectacular aura about
Quote:
Originally Posted by vaibhavraikhare View Post
yeah..this is what i want to say??? so it should be turbulent or what???
there isn't any limitation it is definitely possible.

Did you not do the estimation to show that the boundary layer tends to the turbulent regime? What's your Rayleigh number?

Also, it sounds like you have already run the simulation once. So you ran it with laminar or what model?
LuckyTran is offline   Reply With Quote

Reply


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
[ICEM] Meshing a blade inside air volume LittleBart ANSYS Meshing & Geometry 19 October 10, 2012 10:20
[ICEM] Meshing a blade inside air volume LittleBart ANSYS Meshing & Geometry 0 May 5, 2011 16:11
Simulation of air flow inside valve - FSI? Help! farianka Main CFD Forum 0 April 17, 2011 17:30
Air movements in the room Nevill Krik CFX 3 July 28, 2004 19:16


All times are GMT -4. The time now is 19:38.