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This article is cited in 1 scientific paper (total in 1 paper)
Detonation parameters of mixtures produced by injecting gaseous components into the shaft of a pulse gas detonator
I. S. Batraev, D. K. Rybin, V. Yu. Ulianitsky Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russia
Abstract:
A CCDS2000 detonator for acetylene, ethylene, propylene, and a multicomponent methylacetylene-allene fraction (MAF) propellant is used to perform experiments on measuring the detonation rate and recording a detonation front cell in a tube 26 mm in diameter and 2 m in length. The experiments are carried out at atmospheric pressure in stoichiometric mixtures diluted by nitrogen to air concentrations and in air-propellant mixtures with a varying propellant content in them. In the case where the explosive mixture components are fed as a flow by stratifying an explosive charge in an initiation zone, a self-sustaining detonation is stably excited up to limiting (spin) regimes. The concentration limits of the detonation existence are determined. In the propellant-air mixtures of acetylene and ethylene, as the values become lower than the limits, there is multifront detonation. For propylene and MAF, a tube diameter of 26 mm is near-critical: only one- and two-headed spin is observed in the entire range of existence. Calculation results are in good agreement with the experiment.
Keywords:
gas detonation, detonation parameters, cellular structure of the detonation front, acetylene, ethylene, propylene, methylacetylene-allene fraction (MAF), MAPP gas.
Received: 19.12.2019 Revised: 04.02.2020 Accepted: 19.02.2020
Citation:
I. S. Batraev, D. K. Rybin, V. Yu. Ulianitsky, “Detonation parameters of mixtures produced by injecting gaseous components into the shaft of a pulse gas detonator”, Fizika Goreniya i Vzryva, 57:1 (2021), 27–33; Combustion, Explosion and Shock Waves, 57:1 (2021), 23–29
Linking options:
https://www.mathnet.ru/eng/fgv732 https://www.mathnet.ru/eng/fgv/v57/i1/p27
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