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2006.257: Multiple speeds of flame edge propagation for Lewis numbers above one

2006.257: R. W. Thatcher and A. A. Omon-Arancibia (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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DOI: 10.1080/13647830500261617

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 2000 > 80 Classical thermodynamics, heat transfer
MIMS number:2006.257
Deposited By:Miss Louise Stait
Deposited On:09 August 2006

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