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Appl. Phys. Lett. 93, 031503 (2008); http://dx.doi.org/10.1063/1.2964193 (3 pages)

Influence of operating pressure on surface dielectric barrier discharge plasma aerodynamic actuation characteristics

Yun Wu1, Yinghong Li1, Min Jia1, Huimin Song1, Zhigang Guo2, Ximing Zhu2, and Yikang Pu2

1Engineering College, Air Force Engineering University, Xi’an 710038, People’s Republic of China
2Department of Engineering Physics, Tsinghua University, Beijing 100084, People’s Republic of China

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(Received 3 June 2008; accepted 7 July 2008; published online 24 July 2008)

This letter reports an experimental study of surface dielectric barrier discharge plasma aerodynamic actuation characteristics’ dependence on operating pressure. As the pressure decreases, the N2(C3Пu) rotational temperature decreases, while its vibrational temperature decreases initially and then increases. In addition, the discharge mode changes from a filamentary type to a glow type at 45 Torr. In the filamentary mode, the electron density decreases with pressure, while the electron temperature remains almost unchanged. In the glow mode, however, both the electron density and the electron temperature increase while the pressure decreases. The induced velocity shows a maximum value at 445 Torr.

© 2008 American Institute of Physics

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KEYWORDS and PACS

PACS

  • 52.30.-q

    Plasma dynamics and flow

  • 52.35.Py

    Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.)

  • 52.80.Hc

    Glow; corona

  • 47.85.Gj

    Aerodynamics

ARTICLE DATA

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

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