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

Bulk temperature Tf is obtained from total or static temperature?

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

LinkBack Thread Tools Search this Thread Display Modes
Old   March 30, 2011, 05:56
Question Bulk temperature Tf is obtained from total or static temperature?
New Member
Join Date: Mar 2011
Posts: 2
Rep Power: 0
NPU_conanxie is on a distinguished road
Hi, how are you? I have a question for your help.

Assume compressible idea-gas coolant flows into heated channel like turbine blade internal channel. BC: walls are given constant heat flux, inlet is given mass flow and total temperature, outlet is given pressure. Now I want to obtain the heat transfer coefficient, h=q/(Tw-Tf).

Generally the bulk temperature,Tf, is simply averaged by inlet and outlet temperature. Now, I just want to know, do the inlet and outlet temperature be referred to total temperature or static temperature? Or, Tf is averaged by inlet static temperature and outlet total temperature ?

Wall temperature,Tw refer to static temperature? If I choose static, the some of Tw are lower than the Tf.

Please help me charify the problems. Thank you.
NPU_conanxie 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
static temperature and total temperature showwa FLUENT 3 March 24, 2016 05:58
static temperature is higher than total temp. in buoyancy problem amirbahador FLUENT 2 October 24, 2010 07:21
Total temperature and static temperature rogbrito CFX 1 June 21, 2009 18:37
Static and Total Temperature Tomislav FLUENT 4 December 4, 2006 04:59
The static temperature is higher than total temp devy FLUENT 0 March 27, 2003 20:16

All times are GMT -4. The time now is 02:44.