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

Problem about the Temperature Equation

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

LinkBack Thread Tools Display Modes
Old   September 2, 2009, 06:39
Default Problem about the Temperature Equation
Senior Member
J. Cai
Join Date: Apr 2009
Posts: 180
Rep Power: 8
chiven is on a distinguished road
I am wondering why the temperature equation of buoyantBoussinesqPisoFoam/Simple is considering both the laminar and turbulent Prandtl numbers attached in the follows.
According to the energy conservation equation, it should be enough only considering the turbulent one for a turbulent case.
Can anyone give me an explanation? Thanks in advance.

volScalarField kappaEff
turbulence->nu()/Pr + turbulence->nut()/Prt
fvScalarMatrix TEqn
+ fvm::div(phi, T)
- fvm::laplacian(kappaEff, T)
rhok = 1.0 - beta*(T - TRef);
chiven 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
Problem solving pressure-correction equation alex_de_large Main CFD Forum 4 July 20, 2009 03:44
UDF Wall Temperature Problem - Coordinates Marc FLUENT 1 July 3, 2008 11:10
I-Radiation Equation problem with CFX Parellel Scott CFX 2 January 9, 2007 21:39
use kiva to solve another temperature equation zhzhguo Main CFD Forum 0 June 6, 2006 20:59
problem in solving such an equation R Main CFD Forum 5 May 27, 2005 07:49

All times are GMT -4. The time now is 14:42.