Theoretical Aspects of Flame Stabilization

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Abstract
An approximate graphical method of calculation is presented for evaluation of the flame speed of premixed combustible gases and its relation to the minimum size of burned gas pocket which can propagate a flame. The theory is applied in a semi‐quantitative manner to the problem of the stability limits of a flame anchored to a bluff body in a stream of high velocity gas. Three different approaches to this problem are made, each of which indicates that the velocity of the gas stream at blow‐out should be proportional to the linear dimension of the flame‐holder, the absolute gas pressure, and the square of the laminar flame speed of the combustible gas.

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