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Original Articles

Instabilities in Upward Propagating Flames

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Pages 69-84 | Received 19 Mar 1986, Accepted 09 Dec 1986, Published online: 16 May 2007
 

Abstract

A derivation is presented of a nonlinear evolution equation describing the dynamics of a flame front propagating in a vertical channel:

where G is the buoyancy parameter and φmacr; the average of φ over the channel cross-section. The velocity and equilibrium form of the distorted flame front are calculated, and the effect of the suppression of cellular structure in upward propagating flames is described.

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