CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

boundary condition for temperature

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

LinkBack Thread Tools Display Modes
Old   March 24, 2008, 05:27
Default boundary condition for temperature
Posts: n/a
The boundary condition for temperature in the problem of unsteady boundary layer problem is

T = Tw at y = 0 and T = Te as y goes to infinity

when considering the following non-dimensional variables where the first one is theta = (T - Tw)/(Te - Tw)

and the second one is theta = (T - Te)/(Tw - Te),

we have for the first one T = 0 at y = 0, T = 1 at y infinity

and for the second one T = 1 at y = 0, T = 0 at y infinity

Note: Tw wall temperature, Te temperature far from the wall, theta dimensionless variable for temperature

can you explain what is the meaning of differences between these two cases and when we should apply the first one and the second one?
  Reply With Quote


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
Domain Imbalance HMR CFX 5 October 10, 2016 05:57
Can anyone give me some hint on how to make traction free boundary condition? poplar OpenFOAM 3 January 14, 2015 03:37
Boundary Conditions Thomas P. Abraham Main CFD Forum 20 July 7, 2013 05:05
Setting outlet Pressure boundary condition using CAFFA code Mukund Pondkule Main CFD Forum 0 March 16, 2011 04:23
How to set boundary condition in Fluent for the fo Peiyong FLUENT 1 November 10, 2006 12:44

All times are GMT -4. The time now is 06:49.