Diffraction estimate of the critical energy for initiation of gaseous detonation

被引:0
作者
A. A. Vasil’ev
机构
[1] Russian Academy of Sciences,Lavrent'ev Institute of Hydrodynamics Siberian Division
来源
Combustion, Explosion and Shock Waves | 1998年 / 34卷
关键词
Detonation Wave; Gaseous Detonation; Initiation Energy; Spherical Detonation; Multifront Detonation;
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摘要
A criterion for the excitation of detonation is proposed: the critical initiation energy equals the work performed by the expanding detonation products along a path length equal to the longitudinal dimension of a cell. The initial radius of the layer is chosen to be equal to the radius of the detonation wave diffracted at 90° edge at the time the axial rarefaction wave converges on the axis of the gaseous charge. Formulas are obtained for estimating the critical energy for initiation of plane, cylindrical, and spherical detonation waves. The calculated values are in good agreement with experiment.
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页码:433 / 437
页数:4
相关论文
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