Effect of laser supported detonation wave confinement on termination conditions

被引：0
|
作者：
Masato Ushio
Kimiya Komurasaki
Koichi Kawamura
Yoshihiro Arakawa
机构：
[1] The University of Tokyo,Department of Advanced Energy
[2] The University of Tokyo,Department Aeronautics and Astronautics
来源：
Shock Waves | 2008年 / 18卷
关键词：
Laser; Blast wave; Detonation; Propulsion; 52.50.J; 52.77.F; 42.62; 52.75.D; 42.79.A; 47.40;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A laser supported detonation (LSD) wave was driven using line-focusing laser optics, in which an induced blast wave expanded laterally from the LSD region to surrounding air in two-dimensional space. The LSD wave was confined in quasi-1D space using a wedge nozzle to restrict the lateral expansion of a blast wave. The LSD termination threshold and the blast wave energy were deduced from shadowgraphs showing the blast wave expansion. The respective threshold laser intensities for cases with and without confinement were estimated as 17 and 34 GW/m2, indicating that the lateral expansion strongly influenced on the LSD termination condition.
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收藏
页码：35 / 39
页数：4
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