HUANG Chao1, WANG Bin2, YAO Xiong-liang1, et al. Laboratory-scale underwater explosion bubble experiment method[J]. 2011, 30(12): 75-77+81. DOI: 10.13873/j.1000-97872011.12.015.
实验室尺度水下爆炸气泡实验方法
摘要
为研究水下爆炸气泡的动态特性
建立了实验室尺度水下爆炸气泡实验方法
该方法采用高速摄影技术
在2 m×2 m×2 m的水箱中进行
分别从定性和定量的角度分析了水箱边界影响产生的的误差。研究了小当量PETN的水下爆炸气泡现象
高速摄影的速度控制在4000~5000s-1
精度控制在1%以内。实验结果表明:随着药量的增加
水箱边界的影响逐渐增加。在进行实验室尺度水下爆炸气泡实验时
为尽量减小边界对气泡运动产生的影响
需要控制使用的药量。
Abstract
A laboratory-scale experiment method is founded to investigate underwater explosion bubble dynamics.High-speed photography(HSP) technique and a 2m×2m×2m tank are employed.The influence of tank-wall exerts on bubble is analyzed from qualitative and quantitative perspective.Bubbles by small equivalent PETN are investigated by controlling the velocity of HSP in 4 000 ~5 000s-1 and the precision is within 1 %.Experimental results show that the effect on bubble motion increases with charge weight.Therefore
the weight of charge should be careful controlled in experiment.
On the dynamics and instability of bubbles formed during underwater explosions [J] . Suresh Menon,Mihir Lal. Experimental Thermal and Fluid Science . 1998 (4)