|March 27, 2013, 13:12||
Eddy-Dissipation Model: production rates limiters equations
Join Date: Jan 2010
Location: Laval University, Canada
Posts: 387Rep Power: 10
Let's say we have
from Fluent Theory Guide 14.0 or 14.5, section 22.214.171.124, equation (7-25), one of the two limiters for production rate of O2 is :
Then I read the cited reference in Fluent Theory Guide [Magnussen and Hjertager, On Mathematical Modeling of Turbulent Combustion with Special Emphasis on Soot Formation and Combustion, 1976] and here is the limiting formula for the oxygen (equation (2) of the article):
where is the stoichiometric oxygen-to-fuel mass ratio:
inserting (6) into (5) results in
Comparing (7) with (3) and (4), it looks like Fluent Theory Guide and Magnussen formulas don't match.
Did I go wrong somewhere? Or is there a typo in Fluent Theory Guide?
Last edited by macfly; March 28, 2013 at 12:49.
|Thread||Thread Starter||Forum||Replies||Last Post|
|K - epsilon VS SST turbulence model||Maicol||Main CFD Forum||0||November 30, 2012 17:25|
|Chemical reaction using Eddy Dissipation Model in FLUENT||hyperflow||FLUENT||5||June 11, 2012 04:54|
|Reynolds transport, turbulence model, etc||Beginner||Main CFD Forum||1||January 7, 2009 06:36|
|Turbulence model equations||Vidya Raja||FLUENT||1||September 18, 2006 00:09|
|about k-epsilon model equations||Srinivasulu||Main CFD Forum||1||November 7, 2000 06:18|