Diffraction estimate of the critical energy for initiation of gaseous detonation

被引：10
|
作者：
Vasil'ev, AA [1 ]
机构：
[1] Russian Acad Sci, MA Lavrentev Hydrodynam Inst, Siberian Div, Novosibirsk 630090, Russia
来源：
COMBUSTION EXPLOSION AND SHOCK WAVES | 1998年 / 34卷 / 04期
关键词：
Detonation Wave; Gaseous Detonation; Initiation Energy; Spherical Detonation; Multifront Detonation;
D O I：
10.1007/BF02675612
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A criterion for the excitation of detonation is proposed: the critical initiation energy equals the work performed by the expanding detonation product's 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 degrees 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.
引用
收藏
页码：433 / 437
页数：5
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