Influence of the Curvature of a Spherical Flame on its Speed: Comparison of Two Approaches
V. V. Zamashchikov
Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: spherical flames, flame stretching, flame speed, curvature effect
Abstract
A comparison of two approaches to describing a stretching spherical flame is made. Processing of a large amount of experimental data shows that the approach in which a parameter proportional to the strain rate is used as a small parameter gives a lower accuracy of approximation than the approach based on the use of the ratio of the flame thickness to the radius of curvature.
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