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This article is cited in 10 scientific papers (total in 10 papers)
Diffusion model of combustion of coarse boron particles
G. V. Ermolaev, A. V. Zaitsev Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Abstract:
Owing to its high mass and volume heats of combustion, boron is a promising component of solid propellants for air-breathing engines. Its application is limited by difficulties of organizing high-efficiency combustion. Experimental investigations of combustion of individual boron particles demonstrate a large number of unique features, which are not typical for other materials: variable ignition temperature, two stages of combustion, and drastic reduction of the burning rate for particles with sizes of several micrometers or smaller. Models that cover the entire range of temperatures, concentrations, and particle sizes are physically non-obvious, can be hardly reproduced, and do not provide the accuracy needed for solving practical problems. In this paper, we propose a simple diffusion model of combustion, which ensures an adequate description of combustion of boron particles 34.5 and 44.2 $\mu$m in size at temperatures above 2240 K.
Keywords:
boron, combustion, diffusion.
Received: 26.05.2017 Revised: 11.10.2017
Citation:
G. V. Ermolaev, A. V. Zaitsev, “Diffusion model of combustion of coarse boron particles”, Fizika Goreniya i Vzryva, 54:4 (2018), 64–72; Combustion, Explosion and Shock Waves, 54:4 (2018), 442–449
Linking options:
https://www.mathnet.ru/eng/fgv526 https://www.mathnet.ru/eng/fgv/v54/i4/p64
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