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Publication Citation: CFD Modeling of Fire

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Author(s): Kevin B. McGrattan; Randall J. McDermott; Glenn P. Forney; Jason E. Floyd; Simo A. Hostikka; Howard R. Baum;
Title: CFD Modeling of Fire
Published: January 11, 2012
Abstract: An overview of a methodology for simulating fires and other thermally-driven, low-speed flows is presented. The model employs a number of simplifications of the governing equations that allow for relatively fast simulations of practical fire scenarios. The hydrodynamic model consists of the low Mach number large-eddy simulation subgrid closure with either a constant or dynamic coefficient eddy diffusivity. Combustion is typically treated as a mixing-controlled, single-step reaction of fuel and oxygen. The radiation transport equation is written in terms of a spectrally-averaged gray gas. Applications of the model include the design of fire protection systems in buildings and the reconstruction of actual fires.
Citation: International Journal of Computational Fluid Dynamics
Keywords: combustion; fire; large-eddy simulation; low Mach number approximation; lumped species; thermal radiation
Research Areas: Fire Modeling
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