Review of Large-Eddy Simulation of Non-Premixed Turbulent Combustion

[+] Author and Article Information
James J. Riley

Department of Mechanical Engineering, University of Washington, Seattle, Washington 98195rileyj@u.washington.edu

J. Fluids Eng 128(2), 209-215 (Dec 29, 2004) (7 pages) doi:10.1115/1.2169814 History: Received May 14, 2004; Revised December 29, 2004

Recent developments in the methodology of large-eddy simulation applied to turbulent, reacting flows are reviewed, with specific emphasis on mixture-fraction-based approaches to nonpremixed reactions. Some typical results are presented, and the potential use of the methodology in applications and the future outlook are discussed.

Copyright © 2006 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Slice through the a turbulent region. Nonpremixed turbulent combustion occurs at the interface of the fuel (black) and oxidant (white).

Grahic Jump Location
Figure 2

Filtered mass fraction and scaled temperature for a two-step reaction on a scalar mixing layer. Lines are predictions from a 643-point LES, symbols from a 5123-point DNS. Notation is as in Swaminathan and Bilger (43).

Grahic Jump Location
Figure 3

Filtered dissipation rate and SGS variance versus downstream distance in grid turbulence. The solid lines are from the DNS results obtained with 5123 grid points; the dashed lines are from LES results from 643 simulations of the same flow.




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