CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM Running, Solving & CFD

Turbulent thermal diffusivity

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

LinkBack Thread Tools Display Modes
Old   August 16, 2010, 14:17
Default Turbulent thermal diffusivity
New Member
Vitor Braga
Join Date: Oct 2009
Posts: 28
Rep Power: 8
vitor is on a distinguished road

does anyone know an equation/a way to initialize the turbulent thermal diffusivity (alphat)?

For example, if I want to initialize its value at the inlet of a pipe with a known velocity.

In other words, how to initialize the turbulent thermal diffusivity (alphat)?
Is there a straightforward way?

vitor is offline   Reply With Quote

Old   August 22, 2010, 12:05
Default Same doubt
Senior Member
Nilesh Rane
Join Date: Apr 2010
Posts: 122
Rep Power: 7
nileshjrane is on a distinguished road
I am also facing same doubt. Please can anyone shade some light on this???
Imagination is more important than knowledge..
nileshjrane is offline   Reply With Quote

Old   August 22, 2010, 15:43
Paulo Bufacchi
Join Date: Jun 2010
Posts: 50
Rep Power: 7
Bufacchi is on a distinguished road
Hi Vitor,

I don't know what application you are running, but fireFoam has a file named alphaSgs (turbulent thermal diffusivity) under directory 0 in smallPoolFire2D tutorial.

Maybe it fits your need.

Bufacchi is offline   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
Molecular diffusivity & Thermal conduct. = KINETIC Kenji CD-adapco 2 March 19, 2008 19:40
Anistropic thermal conduction in Fluent 6.2 Bharath FLUENT 0 November 23, 2006 22:07
turbulent diffusivity confused Main CFD Forum 4 June 4, 2005 16:29
Turbulent eddy diffusivity for mixing?? Ray Main CFD Forum 0 March 22, 2001 06:07
Info: Short Course On Thermal Design of Electronic Equipment Arnold Free Main CFD Forum 0 August 10, 1999 10:18

All times are GMT -4. The time now is 04:48.