This article is cited in 11 papers

Numerical study of shock-wave diffraction in variable-section channels in gas suspensions

A. V. Fedorov, Yu. V. Kratova, T. A. Khmel

Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090

Abstract: The problem of shock-wave transition past a backward-facing step in a gas suspension is solved. The calculation method is tested on a similar problem for a pure gas, and good agreement with available experimental and numerical results is reached. The effect of shock-wave intensity, mass load factor of particles in the mixture, and particle size on the flow structure in the gas suspension is determined. It is shown that the greatest difference between the flow pattern in a two-phase mixture and the corresponding flow in a pure gas is observed in the range of times when the characteristic sizes of the structures being formed are commensurable with the scale of the relaxation zones.

Keywords: diffraction of shock waves, two-phase flows, numerical simulation.

UDC: 532.529

Received: 29.12.2006

 English version: Combustion, Explosion and Shock Waves, 2008, 44:1, 76–85

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