Influence of voltage polarity on intensity of shock waves induced by underwater pulse discharges

Gu Yue Zhou, Yi Liu, Xian Dong Li, Si Wei Liu, Zhi Yuan Li, Zi Jian Li, Fu Chang Lin

研究成果: Conference contribution

抄録

The shock wave generated by high-voltage pulse discharges in liquid has been widely used in industrial applications. In this paper, an integrated experimental platform of underwater pulse discharges is established, a needle-plate electrodes system with the gap distance of 10 mm is used. The influence of voltage polarity on the process, morphology and physical characteristics of streamer development are discussed, based on the analysis of energy transfer process, the influence of voltage polarity on the shock intensity is studied. The results show that for the subsonic streamer, the use of negative polarity voltage can significantly improve the energy conversion efficiency of the shock wave. For the positive polarity, the supersonic streamer mode can significantly reduce the energy loss of the prebreakdown process, increase the rate of expansion of the plasma channel, and obtain a higher intensity of shock wave. Using the negative polarity voltage, or controlling the voltage of the positive polarity to make streamers develop in the supersonic streamer mode, can significantly improve the intensity of the shock wave.

本文言語English
ホスト出版物のタイトル2017 IEEE 19th International Conference on Dielectric Liquids, ICDL 2017
出版社Institute of Electrical and Electronics Engineers Inc.
ページ1-5
ページ数5
ISBN(電子版)9781509048779
DOI
出版ステータスPublished - 2017 11 29
外部発表はい
イベント19th IEEE International Conference on Dielectric Liquids, ICDL 2017 - Manchester, United Kingdom
継続期間: 2017 6 252017 6 29

出版物シリーズ

名前2017 IEEE 19th International Conference on Dielectric Liquids, ICDL 2017
2017-January

Conference

Conference19th IEEE International Conference on Dielectric Liquids, ICDL 2017
国/地域United Kingdom
CityManchester
Period17/6/2517/6/29

ASJC Scopus subject areas

  • 流体および伝熱
  • 電子工学および電気工学
  • 電子材料、光学材料、および磁性材料

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