NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
A Mixture Fraction Combustion Model for Fire Simulation Using Computational Fluid Dynamics (CFD)
Published
Author(s)
J E. Floyd, Howard R. Baum, Kevin B. McGrattan, Simo A. Hostikka
Abstract
The simulation of fires using computational fluid dynamics (CFD) is challenging because it is difficult to couple the combustion chemistry that occurs at very small length scales with the resolvable hydrodynamic field. While it is possible to create a combustion model that tracks the significant species required to calculate the heat release rate, it is too expensive to construct a grid fine enough to resolve individual flame sheets except in cases where the domain is very small. A method, therefore, is needed to model the combustion chemistry in a manner that can be used at the length scales of the resolvable flow field.
Citation
Journal of Fire Protection Engineering
Pub Type
Journals
Keywords
combustion, computational fluid dynamics, fire model, fire research, large eddy simulation, mixture fraction
Floyd, J.
, Baum, H.
, McGrattan, K.
and Hostikka, S.
(2003),
A Mixture Fraction Combustion Model for Fire Simulation Using Computational Fluid Dynamics (CFD), Journal of Fire Protection Engineering
(Accessed October 7, 2025)