Abstract

In this work a numerical modeling method was used to study different variations of realizing this method: local ignition in the central part of a porous specimen of "infinite" (from the point of view of its excluding the effect of boundary conditions) length; initiation of a counter FC wave by local warm-up of the rear (in relation to the direction of gas filtration) part of the specimen; formation of an associated inverse FC wave with warm-up of its frontal part. The aim of this study is to clarify the features of FC wave dynamics, the effect on it of temperature @p and width of the firing zone 6warm-up) Lp; to establish the relationship between the minimum (critical) ignition temperature @i and Lp with different regime parameters and characteristics of the physical system; to determine the ignition time Ti and the amount of "flashback" of the oxidant (instantaneous ~L/~0 and integral ~(~L/~0)e~ during firing, o

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