Interaction between shock wave and a liquid droplet

被引：0
|
作者：
Liu G. [1 ,2 ]
Hou H. [1 ]
Zhu X. [1 ]
机构：
[1] Department of Naval Architecture Engineering, Naval University of Engineering, Wuhan
[2] Unit 92941 of Chinese People's Liberation Army, Huludao
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2017年 / 36卷 / 13期
关键词：
Blast wave; Liquid droplet breakup; Pressure wave; Reflected blast wave; Transmitted wave; Vortex pair;
D O I：
10.13465/j.cnki.jvs.2017.13.007
中图分类号：
学科分类号：
摘要：
Atomizing liquid droplets under the action of blast wave is used in industry and practice, but there are few studies on the interaction between strong blast wave and atomized liquid droplets, as this interaction has a positive effect on avoiding explosion shock of ship cabins. Here, the finite element method was used to simulate pressure change of strong shock wave acting on a single liquid droplet in a 2-dimensional space, and shape and location changes of the droplet. The breakup characteristics of the droplet were analyzed due to different explosive masses and explosion distances. The results showed that there are two typical modes of liquid droplet breakup, they are obvious different; the explosion distance and explosive mass have a decisive effect on the propagation speed of blast wave, and affect the breakup mode of droplet; the reflected blast wave and the transmitted wave in the model of high Mach number are obviously different from those in the model of low Mach number; the local low pressure area diffracted by vortex pair of high Mach number is much broader than that diffracted by vortex pair of low Mach number; the interaction process for high Mach number is more severe and lasts less time; compared with the process of blast shock wave propagation, the process of liquid droplet deforming has an obvious hysteresis, the former is more fast and the aerodynamic force produced continuously affects the shape change of the liquid droplet. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：45 / 52
页数：7
相关论文
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