Multiple speeds of flame edge propagation for Lewis numbers above one

Thatcher, R. W. and Omon-Arancibia, A. A. (2005) Multiple speeds of flame edge propagation for Lewis numbers above one. Combustion Theory and Modelling, 9 (4). pp. 647-658. ISSN 1364-7830

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Abstract

Edges of diffusion flames in a counterflow burner are examined numerically for Lewis greater than unity. When the speed of propagation is plotted against Damköhler for a range of Lewis a fold bifurcation is observed. It is shown that there exist stable positively and negatively propagating edges for some Damköhler and Lewis number pairs. It is further shown that changed local conditions can lead to a transition from positive (advancing into the unburnt gasses) to negative (receding) propagation.

Item Type: Article
Uncontrolled Keywords: Flame edges, Laminar flames, Non-premixed combustion, Multiple speeds
Subjects: MSC 2010, the AMS's Mathematics Subject Classification > 80 Classical thermodynamics, heat transfer
Depositing User: Ms Lucy van Russelt
Date Deposited: 09 Aug 2006
Last Modified: 20 Oct 2017 14:12
URI: http://eprints.maths.manchester.ac.uk/id/eprint/465

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