CUED Publications database

Scalar dissipation and mean reaction rates in premixed turbulent combustion

Bray, K and Champion, M and Libby, PA and Swaminathan, N (2011) Scalar dissipation and mean reaction rates in premixed turbulent combustion. Combustion and Flame, 158. pp. 2017-2022. ISSN 0010-2180

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Abstract

A general equation for a variance parameter, appearing as a crucial quantity in a simple algebraic expression for the mean chemical rate, is derived. This derivation is based on a flamelet approach to model a turbulent premixed flame, for high but finite values of the Damköhler number. Application of this equation to the case of a planar turbulent flame normal to the oncoming flow of reactants gives good agreement with DNS data corresponding to three different values of the Damköhler number and two values of the heat release parameter. © 2011.

Item Type: Article
Uncontrolled Keywords: Flamelet regime Scalar dissipation Turbulent combustion modelling
Subjects: UNSPECIFIED
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:21
Last Modified: 08 Dec 2014 02:31
DOI: 10.1016/j.combustflame.2011.03.009