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

Energy equation components have different dimensions

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 25, 2012, 16:30
Default Energy equation components have different dimensions
  #1
Member
 
Paulo Bufacchi
Join Date: Jun 2010
Posts: 50
Rep Power: 7
Bufacchi is on a distinguished road
Hi Foamers,

I'm using OpenFOAM 2.1.x.

I noticed that in the file reactingOneDim.C, in the energy equation:

fvScalarMatrix TEqn
(
fvm::ddt(rhoCp, T_)
- fvm::laplacian(K_, T_)
==
chemistrySh_
+ fvc::div(phiQr)
+ fvc::div(phiGas)
);

the components ddt(rhoCp, T_), laplacian(K_, T_) and chemistrySh_ all have the same dimension = [1 -1 -3 0 0 0 0] or J/s/m3, but the components div(phiQr) and div(phiGas) have a different dimension = [1 1 -3 0 0 0 0] or J/s/m.

Does anyone know the reason for that?
Am I missing something?

Regards,

Paulo
Bufacchi 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
Calculation of the Governing Equations Mihail CFX 7 September 7, 2014 06:27
energy equation in rhoCentralFoam nakul OpenFOAM 0 October 10, 2010 15:07
Pohlhausen energy equation MATLAB help abe_cooldude Main CFD Forum 2 May 3, 2010 16:58
How to discretize of energy equation ?? Asghari FLUENT 0 October 12, 2006 08:09
energy equation formulation Pedro Phoenics 1 July 5, 2001 12:17


All times are GMT -4. The time now is 08:47.