中国物理B ›› 2012, Vol. 21 ›› Issue (7): 75204-075204.doi: 10.1088/1674-1056/21/7/075204

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Simulation of transition from Townsend mode to glow discharge mode in a helium dielectric barrier discharge at atmospheric pressure

李雪辰, 牛东莹, 许龙飞, 贾鹏英, 常媛媛   

  1. College of Physics Science & Technology, Hebei University, Baoding 071002, China
  • 收稿日期:2011-11-28 修回日期:2012-01-20 出版日期:2012-06-01 发布日期:2012-06-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10805013 and 51077035), the Funds for Distinguished Young Scientists of Hebei University, China (Grant No. A2012201045) the Key Project of Ministry of Education of China (Grant No. 210014), the Natural Science Foundation of Hebei province, China (Grant Nos. A2009000149 and A2011201132), and the Outstanding Youth Project of Education Department of China (Grant No. Y2011120).

Simulation of transition from Townsend mode to glow discharge mode in a helium dielectric barrier discharge at atmospheric pressure

Li Xue-Chen(李雪辰)†, Niu Dong-Ying(牛东莹), Xu Long-Fei(许龙飞), Jia Peng-Ying(贾鹏英), and Chang Yuan-Yuan(常媛媛)   

  1. College of Physics Science & Technology, Hebei University, Baoding 071002, China
  • Received:2011-11-28 Revised:2012-01-20 Online:2012-06-01 Published:2012-06-01
  • Contact: Li Xue-Chen E-mail:xcli@mail.hbu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10805013 and 51077035), the Funds for Distinguished Young Scientists of Hebei University, China (Grant No. A2012201045) the Key Project of Ministry of Education of China (Grant No. 210014), the Natural Science Foundation of Hebei province, China (Grant Nos. A2009000149 and A2011201132), and the Outstanding Youth Project of Education Department of China (Grant No. Y2011120).

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摘要： The dielectric barrier discharge characteristics in helium at atmospheric pressure are simulated based on a one-dimensional fluid model. Under some discharge conditions, the results show that one discharge pulse per half voltage cycle usually appears when the amplitude of external voltage is low, while glow-like discharge occurs at high voltage. For the one discharge pulse per half voltage cycle, the maximum of electron density appears near the anode at the beginning of the discharge, which corresponds to a Townsend discharge mode. The maxima of the electron density and the intensity of electric field appear in the vicinity of the cathode when the discharge current increases to some extent, which indicates the formation of a cathode-fall region. Therefore, the discharge has a transition from Townsend mode to glow discharge mode during one discharge pulse, which is consistent with previous experimental results.

关键词: dielectric barrier discharge, atmosphere pressure glow discharge, discharge mode, Townsend discharge

Abstract: The dielectric barrier discharge characteristics in helium at atmospheric pressure are simulated based on a one-dimensional fluid model. Under some discharge conditions, the results show that one discharge pulse per half voltage cycle usually appears when the amplitude of external voltage is low, while glow-like discharge occurs at high voltage. For the one discharge pulse per half voltage cycle, the maximum of electron density appears near the anode at the beginning of the discharge, which corresponds to a Townsend discharge mode. The maxima of the electron density and the intensity of electric field appear in the vicinity of the cathode when the discharge current increases to some extent, which indicates the formation of a cathode-fall region. Therefore, the discharge has a transition from Townsend mode to glow discharge mode during one discharge pulse, which is consistent with previous experimental results.

Key words: dielectric barrier discharge, atmosphere pressure glow discharge, discharge mode, Townsend discharge

中图分类号:  (Other gas discharges)

  • 52.80.Tn
52.80.Hc (Glow; corona) 52.80.Mg (Arcs; sparks; lightning; atmospheric electricity)