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

2D model vertical plates with constant heat flux

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 9, 2012, 16:51
Default 2D model vertical plates with constant heat flux
  #1
New Member
 
Smsc S
Join Date: Feb 2012
Posts: 5
Rep Power: 14
smsc59 is on a distinguished road
Hello,

I'd like to ask for help on how to make a correct model of 2 thin vertical plates (0.15cm x 7cm x 60cm) in a large water pool (6m x 9m x 7m).

I am confused on how best to represent this in 2D. Should the plate in 2D be (0.15cm x 60cm) or (7cm x 60cm) ? The heat flux, q" (W/m^2) should be stronger on the larger surface but since I want to see the flow & temperature profiles between the plates, how should I choose?

I am using Gambit to mesh and Fluent for CFD simulation.

Thanks
smsc59 is offline   Reply With Quote

Old   April 9, 2012, 19:25
Default
  #2
New Member
 
Igor
Join Date: Mar 2012
Posts: 13
Rep Power: 14
DaddySpeleo is on a distinguished road
Hi!
1. If you have 2D problem - so - you consider all derives in 3rd directions are equal to zero. So - you shoud decide it.
2. Your wrote about two plates. And what avout their position? Can you give a picture?
DaddySpeleo is offline   Reply With Quote

Old   April 9, 2012, 21:22
Default Re: 2D model vertical plates with constant heat flux
  #3
New Member
 
Smsc S
Join Date: Feb 2012
Posts: 5
Rep Power: 14
smsc59 is on a distinguished road
Let me re-phrase my question about the problem setup.

In Fluent, I chose the wall condition for the plates to be constant heat flux, q" . In this case, does the plate area (in 2D) refer to the thin-face or the broad-face of the plate?

Can either one be chosen but then adjust the 'Reference values' in Fluent under 'Area' and 'Depth' ?

What area does the q" refer to? Or in 3D what volume does the q''' refer to?

I've attached 2 pictures for this problem.

Appreciate any comments and help. Thanks
Attached Images
File Type: jpg plateincavity gambit.jpg (22.4 KB, 5 views)
File Type: jpg 2FP.jpg (40.1 KB, 5 views)
smsc59 is offline   Reply With Quote

Reply

Tags
convection, fluent, gambit, vertical flat plate


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
Implement constant heat flux boundary condition new_at_this Main CFD Forum 2 April 6, 2012 23:35
constant heat flux BC sunny Main CFD Forum 3 January 21, 2005 10:03
constant Heat flux at the wall hatta FLUENT 2 January 9, 2004 07:13
Heat Transfer Coeff. at Heat Flux Boundary Rushyen CFX 6 January 18, 2001 05:09
BC for constant heat flux saidi Main CFD Forum 2 July 17, 1998 15:02


All times are GMT -4. The time now is 20:54.