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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

Keywords

combustion, computational fluid dynamics, fire model, fire research, large eddy simulation, mixture fraction

Citation

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 March 3, 2024)
Created February 3, 2003, Updated February 19, 2017