Shock and detonation wave diffraction at a sudden expansion in gas–particle mixtures

被引：0
|
作者：
A. V. Fedorov
T. A. Khmel
Yu. V. Kratova
机构：
[1] Khristianovich Institute of Theoretical and Applied Mechanics SB RAS,
来源：
Shock Waves | 2008年 / 18卷
关键词：
Shock waves; Detonation; Diffraction; Gas suspensions; 47.40.-x; 47.40.-Rs; 47.55-Kf;
D O I：
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学科分类号：
摘要：
Numerical modeling of the propagation of shock and detonation waves is carried out in a duct with an abrupt expansion for a heterogeneous mixture of fine particles of aluminum and oxygen. A considerable difference from corresponding flows in pure gas is found. The influence of the size and mass loading of particles on the flow and shock wave structure behind the backward-facing step is determined. As in gaseous detonations, three types of scenarios of detonation development are obtained. Specific features of the flow structure are revealed such as deformation of the combustion front due to interaction between the relaxation zone and the vortex structure. The influence of particle size and channel width on detonation propagation is analyzed.
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页码：281 / 290
页数：9
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