Effect of Micro Hydrodynamic Flow in Microgap Discharge at Atmospheric Pressure

• MUKAIGAWA Seiji

  Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551, Japan

• NAWA Kota

  Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551, Japan

• ITO Hiroshi

  Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551, Japan

• TAKAKI Koichi

  Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551, Japan

• FUJIWARA Tamiya

  Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551, Japan

Abstract

The effect of gas flow on the characteristics of a microgap discharge was investigated experimentally. In a gap length of 0.7 mm, the spatial structure and spectrum of light emitted from the discharges in helium gas were observed to be changed with the gas flow velocity. The transition of the discharge from a transversally uniform structure to a silent discharge structure in a high flow velocity region is found to be caused by air contamination in the gas flow channel. The edge effect on the transition is confirmed from the light emission pattern of the discharge.

Journal

• Plasma and Fusion Research

  Plasma and Fusion Research 3 007-007, 2008

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• micro plasma
• dielectric barrier discharge
• gas flow
• discharge transition

Details

• CRID: 1390282680230440064
• NII Article ID: 130000263889
• DOI: 10.1585/pfr.3.007
• ISSN: 18806821
• Web Site: http://www.jstage.jst.go.jp/article/pfr/3/0/3_0_007/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed