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Original Articles

On Effects Due To Thermal Expansion and Lewis Number in Spherical Flame Propagation

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Pages 131-138 | Published online: 29 Mar 2007
 

Abstract

With a freely propagating spherical flame as an example, it is shown that, in the approximation that considers the flame as a geometric surface, this surface may constitute a discontinuity not only in energy flow but also in mass flow and momentum flow. A theoretical account is given of the experimental observation that the propagation velocity of a spherical flame is a rich propane-air mixture which exceeds that of a plane flame in a mixture of the same composition.

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