Mechanism of the Shock Wave Generation and Energy Efficiency by Underwater Discharge
Mechanism of the Shock Wave Generation and Energy Efficiency by Underwater Discharge
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DOI：
10.1260/1750-9548.6.2.89
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发表时间：
2012-08
期刊：
影响因子：
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通讯作者：
O. Higa;R. Matsubara;K. Higa;Y. Miyafuji;T. Gushi;Yukimasa Omine;K. Naha;K. Shimojima;H. Fukuoka;Hironori Maehara;Shigeru Tanaka;T. Matsui;S. Itoh
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文献类型：
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作者：
O. Higa;R. Matsubara;K. Higa;Y. Miyafuji;T. Gushi;Yukimasa Omine;K. Naha;K. Shimojima;H. Fukuoka;Hironori Maehara;Shigeru Tanaka;T. Matsui;S. Itoh
我们正在开发使用水下冲击波的米粉制造系统。本研究旨在探讨水下放电产生冲击波的机理及能量效率，以提高水下冲击波的能量。我们使用具有高速摄像机的可视化装置观察冲击波的产生，同时测量电压电流特性。其结果，明确了在水等离子体因放电而膨胀时产生了无数的水下冲击波。但是，在阻尼振荡的第二个峰值之后的时间没有确认冲击波。阐明了一部分充电能量用于产生冲击波。因此，明确了通过临界振荡释放能量对于有效地产生冲击波是期望的。
We are developing the rice powder manufacturing system using an underwater shock wave. The purpose of this study is to research a mechanism of the shock wave generation and energy efficiency by underwater discharge in order to increase energy of the underwater shock wave. We observed the shock wave generation using the visualization device with a high speed camera, and measured voltage current characteristics at the same time. As a result, it was clarified that countless underwater shock waves were generated at the time of water plasma expansion by discharge. But, the shock wave was not confirmed at the time of after a second peak of the damping oscillation. It was clarified that one part of charging energy was used to generation of the shock wave. Therefore, it was clarified that to release energy by the critical oscillation is desirable for efficient generation of the shock wave.