Experimental study of the water jet induced by underwater electrical discharge in a narrow rectangular tube

T. Koita, Y. Zhu, M. Sun

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper reports an experimental investigation on the effects of explosion depth and tube width on the water jet induced by an underwater electrical discharge in a narrow rectangular tube. The water jet formation and bubble structure were evaluated from the images recorded by a high-speed video camera. Two typical patterns of jet formation and four general patterns of bubble implosion were observed, depending on the explosion depth and tube width. The velocity of the water jet was calculated from the recorded images. The jet velocity was observed to depend on not only the explosion depth and energy, but also on the tube width. We proposed an empirical formula defining the water jet velocity in the tube as a function of the tube width and explosion depth and energy.

Original languageEnglish
Pages (from-to)257-270
Number of pages14
JournalShock Waves
Volume27
Issue number2
DOIs
Publication statusPublished - 2017 Mar 1
Externally publishedYes

Keywords

  • Bubble
  • Cavitation
  • Narrow tube
  • Underwater electrical discharge
  • Underwater shock wave
  • Water jet

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)

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