Mechanism of the Shock Wave Generation and Energy Efficiency by Underwater Discharge

被引：47

作者：

Higa, Osamu ^{[1
]}

Matsubara, Ryo ^{[2
]}

Higa, Katsuya ^{[2
]}

Miyafuji, Yoshitaka ^{[1
]}

Gushi, Takashi ^{[1
]}

Omine, Yukimasa ^{[1
]}

Naha, Kazuyuki ^{[3
]}

Shimojima, Ken ^{[3
]}

Fukuoka, Hiroshi ^{[4
]}

Maehara, Hironori ^{[5
]}

Tanaka, Shigeru ^{[5
]}

Matsui, Takumi ^{[2
]}

Itoh, Shigeru ^{[6
]}

机构：

[1] Okinawa Natl Coll Technol, Tech Support Sect, 905 Henoko, Nago, Okinawa 9052192, Japan

[2] Okinawa Natl Coll Technol, Dept Informat & Commun Syst Engn, Nago, Okinawa 9052192, Japan

[3] Okinawa Natl Coll Technol, Dept Mech Syst Engn, Nago, Okinawa 9052192, Japan

[4] Nara Natl Coll Technol, Dept Mech Syst Engn, Yamatokoriyama City, Nara 6391080, Japan

[5] Kumamoto Univ, Shock Wave & Condensed Matter Res Ctr, Kumamoto, Kumamoto 8608555, Japan

[6] Okinawa Natl Coll Technol, Nago, Okinawa 9052192, Japan

来源：

INTERNATIONAL JOURNAL OF MULTIPHYSICS | 2012年 / 6卷 / 02期

关键词：

Underwater Shock Wave; Underwater Discharge; Rice Powder; Damped Oscillation;

D O I：

10.1260/1750-9548.6.2.89

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 [机械工程];

摘要：

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.

引用

页码：89 / 97

页数：9

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