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Original Articles

Modeling a Turbulent Reactive Flow with Variable Equivalence Ratio: Application to a Flame Stabilized by a Two-Dimensional Sudden Expansion

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Pages 299-320 | Received 01 May 2000, Published online: 15 May 2007
 

Abstract

In this paper, a numerical study of turbulent premixed flames of propane and air is presented. The experimental configuration investigated (Besson el al, 1999) is a planar channel thai incorporates a sudden expansion in a form of two symmetrical backward-facing steps. Two lean mixtures of propane and air are injected in the upper and lower halves of the upstream part of the channel, separated by a plate and in the present work, the fuel-air ratios of these two streams are different. The numerical model includes a second-order closure for Reynolds stresses and uses a modified Bray-Moss-Libby theory to model a reactive turbulent flow with variable stoichiometry.

Notes

∗Corresponding Author

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