Effects of pulse voltage rise rate on velocity, diameter and radical production of an atmospheric-pressure streamer discharge

Atsushi Komuro, Ryo Ono, Tetsuji Oda

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The effect of pulse rise rate on a streamer discharge is investigated through both experiments and simulations. Pulsed voltages with a pulse rise rate of 0.11-0.52 kV ns-1 are applied to point-to-plane electrode configurations, and the effects are observed from ICCD photographs. The streamer emission of light is simulated by a previously developed two-dimensional streamer simulation model, and the simulation results are compared with experimental results. The results show that as the pulse rise rate is decreased, there is a decrease in the discharge current, velocity of the primary streamer, diameter of the streamer channel and emission length of the secondary streamer. The simulated reduced electric field of the primary streamer head remains constant and does not depend on the pulse rise rate. The simulated temporal variations of O and OH radical production show that almost the same number of the radicals are produced in the primary streamer, regardless of the pulse rise rate. However, the radical production in the secondary streamer decreases as the pulse rise rate decreases. Therefore, the pulse rise rate affects the ratio of radical production in the primary streamer to that in the secondary streamer.

Original languageEnglish
Article number045002
JournalPlasma Sources Science and Technology
Volume22
Issue number4
DOIs
Publication statusPublished - 2013 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Effects of pulse voltage rise rate on velocity, diameter and radical production of an atmospheric-pressure streamer discharge'. Together they form a unique fingerprint.

  • Cite this