Abstract
This paper describes the numerical modeling of gas flow in a plane vortex chamber by using the Navier–Stokes equations. The model is based on the laws of conservation of mass, momentum, and energy for nonstationary two-dimensional compressible gas flow in the case of axial symmetry with a tangential component of the gas velocity. The processes of viscosity, thermal conductivity, and turbulence are accounted for. It is shown that the transition of the kinetic energy of gas into thermal energy as a result of transfer processes leads to the formation of hot spots in the boundary layers near the walls of the chamber. The gas temperature at these hot spots can exceed the gas combustion temperature, while the gas remains rather cold in the neighboring regions. This could be the reason for the cold gas self-ignition observed in the experiments. The turbulence of the flow and the processes of mixing and diffusion of the components make a significant contribution to the capacity of gas self-ignition.
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References
B. V. Voitsehovskii, “Stationary Detonation,” Dokl. Akad. Nauk SSSR 129 (6), 1254–1256 (1959).
F. A. Bykovskii and S. A. Zhdan, Continuous Spin Detonation (Izd. Sib. Otd. Ross. Akad. Nauk, Novosibirsk, 2013) [in Russian].
S. M. Frolov, A. V. Dubrovskii, and V. S. Ivanov, “Three-Dimensional Numerical Simulation of the Operating Process in a Chamber with Continuous Detonation,” Khim. Fiz. 31 (3), 32–45 (2012).
S. M. Frolov, A. V. Dubrovskii, and V. S. Ivanov, “Three-Dimensional Numerical Simulation of the Operating Process in a Chamber with Continuous Detonation in the Case of Fuel and Oxidizer Fed Separately,” Khim. Fiz. 32 (2), 56–65 (2013).
F. A. Bykovskii, S. A. Zhdan, V. V. Mitrofanov, et al., “Self-Ignition and Special Features of Flow in a Planar Vortex Chamber,” Fiz. Goreniya Vzryva 35 (6), 26–41 (1999) [Combust., Expl., Shock Waves 35 (6), 622–636 (1999)].
N. B. Vargaftik, Reference Book on Thermophysical Properties of Gases and Liquids (Nauka, Moscow, 1972) [in Russian].
D. Anderson, J. Tannehill, and R. Pletcher, Computational Fluid Mechanics and Heat Transfer (McGraw-Hill, London–New York, 1984).
B. T. Launder and D. B. Spalding, “The Numerical Computation of Turbulent Flows,” Comput. Meth. Appl. Mech. Eng. 3 (2), 269–289 (1974).
L. G. Loitsianskii, Mechanics of Liquids and Gases (Nauka, Moscow, 1973; Begell House, 1995).
O. M. Belotserkovskii and Yu. M. Davydov, The Method of Large Particles in Gas Dynamics (Nauka, Moscow, 1984) [in Russian].
N. L. Staskevich, G. N. Severinets, and D. Ya. Vigdorchik, Reference Book on Gas Supply and Use of Gas (Nedra, Leningrad, 1990) [in Russian].
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Original Russian Text © D.V. Voronin.
Published in Fizika Goreniya i Vzryva, Vol. 53, No. 5, pp. 24–30, September–October, 2017.
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Voronin, D.V. Gas self-ignition in a plane vortex chamber. Combust Explos Shock Waves 53, 510–516 (2017). https://doi.org/10.1134/S0010508217050033
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DOI: https://doi.org/10.1134/S0010508217050033