Superimposed Effect of Shock Waves of Underwater Explosion

被引：0
|
作者：
Lin S. [1 ]
Wang J. [1 ]
Ma T. [1 ]
Qin J. [2 ]
Li H. [2 ]
Huang R. [1 ]
Liu L. [1 ]
机构：
[1] Science and Technology on Transient Physics Laboratory, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu
[2] Naval Research Academy, Beijing
来源：
Binggong Xuebao/Acta Armamentarii | 2020年 / 41卷
关键词：
Numerical simulation; Shock wave superposition; Underwater explosion; Water tank explosion test;
D O I：
10.3969/j.issn.1000-1093.2020.S1.006
中图分类号：
学科分类号：
摘要：
Studying the superimposed effect of shock waves has an important role in enhancing the peak pressure of shock wave. If the shock wave is propelled in the water with existing pressure, the difference between pressures in the front of wave and behind wave is greater than the estimated value, and the two shock waves meet to form a stronger shock wave. The equations of shock wave normal intersection and oblique intersection are obtained through theoretical derivation. The curve is fitted to obtain the theoretical formula of shock wave superposition, and the simulation calculation and water tank explosion test are performed. Numerical simulation calculations and water tank explosion tests show that the theoretical formula obtained is accurate and reliable, which proves that the peak value of shock wave raises obviously after the shock waves are superimposed, which lays the foundation for the damage effect of the superimposed shock waves of underwater explosion. © 2020, Editorial Board of Acta Armamentarii. All right reserved.
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页码：39 / 45
页数：6
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