Effect of Pulse Polarity on Nanosecond Surface Dielectric Barrier Discharge

Author

Lei Pang ; Kun He ; Dong Xu Di

Author_Institution

Inst. of High Voltage Technol., Xi´an Jiaotong Univ., Xi´an, China

Volume

42

Issue

10

fYear

2014

fDate

Oct. 2014

Firstpage

2340

Lastpage

2341

Abstract

This paper presents the optical emission characteristics of a surface dielectric barrier discharge sustained by repetitive nanosecond pulses with different polarities in the subsonic airflows. The plasma images presented here show that the positive polarity pulsed discharge is stable in the airflows, appearing as a brush-type discharge. While the negative polarity pulsed discharge plasma becomes a filamentary pattern that is evidently spatial inhomogeneous in quiescent air, it behaves unstable in airflows.

Keywords

dielectric-barrier discharges; flow control; plasma diagnostics; surface discharges; brush-type discharge; filamentary pattern; nanosecond surface dielectric barrier discharge; negative polarity pulsed discharge plasma; optical emission characteristics; positive polarity pulsed discharge plasma; pulse polarity effect; quiescent air; subsonic airflows; Discharges (electric); Electrodes; Fault location; Plasma temperature; Surface discharges; Flow control; nanosecond discharge plasma; surface dielectric barrier discharge; surface dielectric barrier discharge.;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2320278

Filename

6814283