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

Temperature gradient macro

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 3, 2009, 08:46
Post Temperature gradient macro
  #1
New Member
 
Ameya Durve
Join Date: Jun 2009
Location: Mumbai
Posts: 8
Rep Power: 8
ameyadurve is on a distinguished road
I am studying the mixing of two non-siothermal jets. The maximum temperature difference between the jets is 5 K (cold jet at 298 K and hot jet at 303 K)

However, when I extract the data of temperature gradients I get following values:

Gradients

C_T_G(c, t)[0] = -511.587 (min value) and 666.1385 (max value)
C_T_G(c, t)[1] = -118.3925 (min value) and 165.9301 (max value)

Reconstruction Gradients




C_T_RG(c, t)[0] = -311.3554 (min value) and 374.1836 (max value)
C_T_RG(c, t)[1] = -114.3944 (min value) and 160.957 (max value)


Can anyone please explain why fluent is showing such high values of gradients when the max temperature difference is only 5 K and the system does not involve any sources for generation of heat

P.S: I have extracted the values of these gradients by assingning an UDMI to each one of them.
ameyadurve is offline   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
Temperature Gradient at Wall sven OpenFOAM 7 November 1, 2010 18:25
temperature normal gradient on a boundary Sandrine Main CFD Forum 2 June 10, 2009 16:34
Temperature gradient Jaho CFX 2 March 12, 2009 20:36
Question on Face Temperature Gradient Tomasz Didenko FLUENT 1 June 27, 2003 04:30
Direct calculation of temperature gradient J.W.Ryu FLUENT 5 December 27, 2001 07:39


All times are GMT -4. The time now is 18:05.