Flickering behaviour of turbulent buoyant fire using large-eddy simulation

Cheung, C, Yeoh, G, Cheung, A, Yuen, R and Lo, S 2007, 'Flickering behaviour of turbulent buoyant fire using large-eddy simulation', Numerical Heat Transfer Part A: Applications, vol. 52, pp. 679-712.


Document type: Journal Article
Collection: Journal Articles

Title Flickering behaviour of turbulent buoyant fire using large-eddy simulation
Author(s) Cheung, C
Yeoh, G
Cheung, A
Yuen, R
Lo, S
Year 2007
Journal name Numerical Heat Transfer Part A: Applications
Volume number 52
Start page 679
End page 712
Total pages 33
Publisher Taylor and Francis
Abstract A numerical study investigating the flickering behavior of a turbulent buoyant fire is conducted using large-eddy simulation to examine coupled turbulence, combustion, soot chemistry, and radiation effects. The three-dimensional, Favre-filtered, compressible mass, momentum, energy, and mixture fraction and its scalar variance conservation equations are closed using the Smagorinsky subgrid-scale (SGS) turbulence model. A two-stage predictor-corrector methodology for low-Mach-number compressible flows is adopted. Formation of large-scale vortical structures is well captured, with the predicted puffing frequency agreeing closely with experimentally determined frequencies. Comparisons of instantaneous, mean, and root-mean-square quantities also show qualitative agreement against other experimental data.
Subject Turbulent Flows
DOI - identifier 10.1080/10407780701347713
Copyright notice © Taylor and Francis Group, LLC
ISSN 1040-7782
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