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Indexed by:期刊论文

Date of Publication:2016-05-01

Journal:PLASMA SCIENCE & TECHNOLOGY

Included Journals:SCIE、EI

Volume:18

Issue:5

Page Number:478-484

ISSN No.:1009-0630

Key Words:dielectric barrier discharge; unipolar pulsed voltage; bipolar pulsed voltage; needle-plate electrode; numerical modeling; glow-discharge

Abstract:In this paper, we study the characteristics of atmospheric-pressure pulsed dielectric barrier discharge (DBD) under the needle-plate electrode configuration using a one-dimensional self-consistent fluid model. The results show that, the DBDs driven by positive pulse, negative pulse and bipolar pulse possess different behaviors. Moreover, the two discharges appearing at the rising and the falling phases of per voltage pulse also have different discharge regimes. For the case of the positive pulse, the breakdown field is much lower than that of the negative pulse, and its propagation characteristic is different from the negative pulse DBD. When the DBD is driven by a bipolar pulse voltage, there exists the interaction between the positive and negative pulses, resulting in the decrease of the breakdown field of the negative pulse DBD and causing the change of the discharge behaviors. In addition, the effects of the discharge parameters on the behaviors of pulsed DBD in the needle-plate electrode configuration are also studied.