Study on Shock Wave Pressure Attenuation by Shock Wave Interaction with Water Droplets
Study on Shock Wave Pressure Attenuation by Shock Wave Interaction with Water Droplets
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DOI：
10.3811/jjmf.2021.005
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发表时间：
2021-04
期刊：
影响因子：
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通讯作者：
K. Ohtani;T. Ogawa;Y. Sugiyama;T. Tamba
中科院分区：
文献类型：
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作者：
K. Ohtani;T. Ogawa;Y. Sugiyama;T. Tamba
本文报告了与冲击波压力衰减相关的冲击波/水滴相互作用现象的初步实验结果。水滴从多个针管落下产生，与微爆炸引起的冲击波相互作用。诱导球形冲击波/水滴相互作用现象的过程通过阴影图方法可视化并由高速摄像机记录。使用压力传感器同时测量传播的冲击波与水滴相互作用的压力历史。高速阴影连续图像显示，相互作用的水滴高度变形，并且二次冲击波的波前衰减。同时测量的压力历史表明，一次冲击波峰值压力因与水滴的相互作用而衰减，并且峰值压力比降低。
This paper reports preliminary experimental results of shock wave/ water droplets interaction phenomena related to shock wave pressure attenuation. Water droplets were generated by dropping from a several needle pipes, were interacted with micro-explosive-induced shock wave. The process of induced spherical shock wave/ water droplets interaction phenomena was visualized by shadowgraph method and recorded by a high-speed camera. The pressure histories of propagated shock wave interacting with water droplets were measured simultaneously by using the pressure transducer. High-speed shadowgraph sequential images show that interacted water droplets were highly deformed, and a wave front of a secondary shock wave was decayed. The simultaneously measured pressure history shows that a primary shock wave peak pressure was attenuated with interacting at water droplets, and a peak pressure ratio was decreased.