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Complex dynamic behaviors of nonequilibrium atmospheric dielectric-barrier discharges

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posted on 20.08.2009 by Yuan Tao Zhang, De Zhen Wang, Michael G. Kong
In this paper, a one-dimensional fluid model is used to investigate complex dynamic behaviors of a nonequilibrium dielectric-barrier discharge (DBD) in atmospheric helium. By projecting its evolution trajectory in the three-dimensional phase space of gas voltage, discharge current density, and electrode-surface charge density, the atmospheric DBD is shown to undergo a sequence of complex bifurcation processes when the applied voltage is increased from prebreakdown to many times of the breakdown voltage. Once the gas voltage exceeds the breakdown voltage, the discharge plasma is found to acquire negative differential conductivity and as a result its stability is compromised. For atmospheric DBD, however, the resulting low plasma stability is mitigated by a rapid accumulation of surface charges on the electrodes, thus allowing the atmospheric DBD to retain their character as a glow discharge. At certain values of the applied voltage, a highly complex phenomenon of period multiplication is observed in which the period of the discharge current is three times that of the applied voltage. This suggests that nonequilibrium atmospheric DBD may support evolution patterns that are quasiperiodic or even chaotic. These complex dynamic behaviors are likely to be critical to a full understanding of plasma stability of nonequilibrium atmospheric discharges and to the development of their instability control strategies.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

ZHANG, Y.T., WANG, D.Z. and KONG, M.G., 2006. Complex dynamic behaviors of nonequilibrium atmospheric dielectric-barrier discharges. Journal of Applied Physics, 100 (6), article 063304, pp. 1-9.

Publisher

© American Institute of Physics

Version

VoR (Version of Record)

Publication date

2006

Notes

Copyright 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the authors and the American Institute of Physics. This article appeared in the Journal of Applied Physics and may be found at: http://link.aip.org/link/?JAPIAU/100/063304/1

ISSN

0021-8979

Language

en

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