CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

HELP: jet impingement heat transfer

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

LinkBack Thread Tools Search this Thread Display Modes
Old   July 18, 2011, 09:01
Default HELP: jet impingement heat transfer
New Member
Join Date: Jul 2011
Posts: 1
Rep Power: 0
Student8X is on a distinguished road

I'm trying to make a simulation of a cooling system based on air jet impingement; from a prior assessment, air velocity distributions show good accordance with experimental data but temperatures appear overestimated. In fact, the cold air jet is heated by hot ambient air before it hits the target surface I need to cool; this effect was expected, but I'm very uncertain on its magnitude evaluated by CFD (I 've found that a 4000 ft/min air stream from a circular nozzle with a 0.16 inches diameter increases its temperature from 291 K to 313 K at a distance of 12 inches from its inlet, passing through hot air at 323 K). Since this effect strongly reduces the achievable cooling performance, I would like to have a reference to understand if the obtained results are meaningful.

In particular, I'd like to know any setting which could help to correctly investigate this problem with Fluent 6.3 (e.g. best turbolence model).
Any suggestion will be appreciated.

Student8X is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Water subcooled boiling Attesz CFX 7 January 5, 2013 03:32
help!! water jet impingement heat transfer! FLUENT 1 July 7, 2011 02:40
Convective / Conductive Heat Transfer in Hypersonic flows enigma Main CFD Forum 2 November 1, 2009 22:53
Impinging Jet Heat Transfer Dan Laurin CFX 5 July 13, 2006 08:21
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 15:55

All times are GMT -4. The time now is 23:18.