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Visualization of Inception, Propagation, and Collapse Process of Underwater Positive Streamer

  • T. SatoEmail author
  • R. Kumagai
  • T. Nakajima
  • K. Ohtani
  • A. Komiya
  • S. Kanazawa
  • T. Kaneko
Conference paper

Abstract

Visualization of a whole process of underwater positive primary streamers is difficult because the time scales among inception and propagation of streamers, collapse of streamer gas channels, and formation of residual fine bubbles are different and the spatial scale is a micrometer scale. This study succeeded in successive visualization of the whole process of the streamer with a frame rate of 10 Mfps.

Notes

Acknowledgments

This work was supported by JSPS KAKENHI Grant Number 16H02311 and 24108004 and the Collaborative Research Project of the Institute of Fluid Science, Tohoku University.

References

  1. 1.
    H. Fujita et al., Spatiotemporal analysis of propagation mechanism of positive primary streamer in water. J. Appl. Phys. 113, 113304 (2013)CrossRefGoogle Scholar
  2. 2.
    H. Fujita et al., Fast propagation of an underwater secondary streamer by the appearance of a continuous component in the discharge current. EPL 105, 15003 (2014)CrossRefGoogle Scholar
  3. 3.
    H. Fujita et al., Initiation process and propagation mechanism of positive streamer discharge in water. J. Appl. Phys. 213301, 116 (2014)Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • T. Sato
    • 1
    Email author
  • R. Kumagai
    • 1
  • T. Nakajima
    • 1
  • K. Ohtani
    • 1
  • A. Komiya
    • 1
  • S. Kanazawa
    • 2
  • T. Kaneko
    • 3
  1. 1.Tohoku UniversitySendaiJapan
  2. 2.Oita UniversityOitaJapan
  3. 3.Tohoku UniversitySendaiJapan

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