Ignition and Unstable Regimes of Gasless Combustion of a Disk-Shaped Sample
V. G. Prokof'ev1, V. K. Smolyakov1,2
1Tomsk State University, Tomsk, 630050 Russia
2Structural Macrokinetics, Siberian Branch of the Russian Academy of Sciences, Tomsk, 634021 Russia
Keywords: безгазовое горение, неустойчивый режим горения, фазовый переход, gasless combustion, unstable combustion mode, phase transition
Abstract
The effect of ignition conditions and the parameters of the melting of the inert component on unstable combustion modes was studied numerically using a model for the solid-state combustion of a disk. It is shown that the shape of the heated zone initiating combustion of the disk, determines the number and trajectories of zones of self-propagating combustion zone. The effect of the phase transition on the combustion characteristics is the more pronounced the closer the phase transition temperature to the combustion temperature. In this case, the combustion front takes the shape of a ring.
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