Effects of relative permittivity on primary and secondary streamers in atmospheric pressure dielectric barrier discharge

Keigo Yoshida, Atsushi Komuro, Akira Ando

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, a two-dimensional simulation of atmospheric-pressure streamer discharge with a dielectric on the cathode was conducted to investigate the effects of relative permittivity on primary and secondary streamer characteristics. An electrode configuration with an air gap of 0.1 mm was employed. The input parameters of the simulations were the relative permittivity, dielectric thickness, and applied voltage, which were summarised with five simulation conditions. The propagation velocity and electric field strength of the primary streamer mostly depended on the initial electric field applied between the anode and the dielectric surface, which is determined by the relative permittivity, dielectric thickness, and applied voltage. Conversely, the length and electric field strength of the secondary streamer depended on the amount of charge supplied by the primary streamer and the capacitance of the dielectric, which is defined by the relative permittivity and dielectric thickness.

Original languageEnglish
Article number315203
JournalJournal of Physics D: Applied Physics
Volume54
Issue number31
DOIs
Publication statusPublished - 2021 Aug

Keywords

  • atmospheric pressure streamer
  • dielectric
  • relative permittivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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