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Thermal Fluctuation Characteristics around a Nanosecond Pulsed Dielectric Barrier Discharge Plasma Actuator using a Frequency Analysis based on Schlieren Images

Author

Listed:
  • Takahiro Ukai

    (Department of Mechanical Engineering, Osaka Institute of Technology, Osaka 535-8585, Japan)

  • Konstantinos Kontis

    (James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK)

Abstract

A thermal fluctuation driven by a burst plasma discharge is experimentally investigated using a frequency analysis based on the Schlieren images. The burst plasma discharge is controlled by an interval frequency f int = 200 Hz and a pulse frequency f B = 3.6 kHz as well as the duration time of the burst event: T on . A burst feature is defined as a burst ratio BR = T on/ (1/f int ) . The burst plasma discharge generates a burst-induced hot plume growing above a ground electrode. In a high burst ratio, which is BR = 0.45 and 0.57, the burst-induced hot plume is formed as a wave thermal pattern that is mainly fluctuated at the interval frequency of 200 Hz. Additionally, a maximum fluctuation spot of 200 Hz appears near the edge of an exposed electrode in a low burst ratio, whereas it moves towards the ground electrode in the high burst ratio. The possible scenario is that a relatively strong ionic wind and/or an induced jet generated in the high burst ratio might cause the movement of the maximum fluctuation spot.

Suggested Citation

  • Takahiro Ukai & Konstantinos Kontis, 2020. "Thermal Fluctuation Characteristics around a Nanosecond Pulsed Dielectric Barrier Discharge Plasma Actuator using a Frequency Analysis based on Schlieren Images," Energies, MDPI, vol. 13(3), pages 1-15, February.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:628-:d:315562
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    Cited by:

    1. Olga A. Azarova, 2022. "Basics of Control of the Bow Shock Wave, Drag and Lift Forces, and Stability in a Steady Supersonic Flow Past an AD Body Using Permanently Operating Thermally Stratified Energy Deposition," Energies, MDPI, vol. 15(22), pages 1-31, November.
    2. Irina V. Mursenkova & Igor E. Ivanov & Yugan Liao & Igor A. Kryukov, 2022. "Experimental and Numerical Investigation of a Surface Sliding Discharge in a Supersonic Flow with an Oblique Shock Wave," Energies, MDPI, vol. 15(6), pages 1-13, March.

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