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

How to model Object to cool in an Air Stream

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 10, 2006, 22:48
Default How to model Object to cool in an Air Stream
  #1
JW
Guest
 
Posts: n/a
Hi, I want to use Fluent to analysis cooling an object. Product: A container with water. Weight 1 kg, Initial temperature of Product 30Deg C and Final Temp to be measured using Fluent.

This product is placed inside a Duct and supply Air stream temperature is 10Deg C.

Does any one know how to model the above Product to check Temperature profile?

Note: I tried to model air stream as Fluid and water in the container as Fluid. But this did not work. Ie there is no change in the temperature of the object.

Thanks JW

  Reply With Quote

Old   May 11, 2006, 02:11
Default Re: How to model Object to cool in an Air Stream
  #2
Ralf Schmidt
Guest
 
Posts: n/a
Hi,

first of all, is it really neccessary to model the water as fluid?? Does the air stream applies any motion to the water??

When the air stream just produce little waves, I would neglect that and model the water container as solid.

Second, when your flow is turbulent (!), one very importand parameter is the grid close to the wall of your container. check the Fluent manual "modelling turbulence", especially the near wall treatment section.

third, have you done a unsteady calculation? If not, there can not be any change in temperature...

Hope, it helps Ralf
  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
Air Entrainment Model atulverma FLOW-3D 6 May 19, 2009 05:17
BlockMeshmergePatchPairs hjasak OpenFOAM Native Meshers: blockMesh 11 August 15, 2008 07:36
quastion about a double stream tubetube model Eric Main CFD Forum 0 September 2, 2006 19:47
Kinetic air props model - conductivity HALF? Chris Bailey FLUENT 1 March 7, 2006 11:38
HELP!!! Indoor air flow pattern Peter Zhang Main CFD Forum 4 November 3, 1999 03:49


All times are GMT -4. The time now is 01:08.