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The premixed flame in uniform straining flow

Published online by Cambridge University Press:  20 April 2006

P. A. Durbin
P. A. Durbin
Affiliation:
NASA Lewis Research Center, 21000 Brookpark Road, Cleveland, Ohio 44135, U.S.A.
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Abstract

Characteristics of the premixed flame in uniform straining flow are investigated by the technique of activation-energy asymptotics. An inverse method is used, which avoids some of the restrictions of previous analyses. It is shown that this method recovers known results for adiabatic flames. New results for flames with heat loss are obtained, and it is shown that, in the presence of finite heat loss, straining can extinguish flames. A stability analysis shows that straining can suppress the cellular instability of flames with Lewis number less than unity. Strain can produce instability of flames with Lewis number greater than unity. A comparison shows quite good agreement between theoretical deductions and experimental observations of Ishizuka, Miyasaka & Law (1981).

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 121 , August 1982 , pp. 141 - 161
Copyright
© 1982 Cambridge University Press

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