Dynamic stall control around practical airfoil using nanosecond-pulse-driven dielectric barrier discharge plasma actuators

Yuto Iwasaki, Taku Nonomura, Koki Nankai, Keisuke Asai, Shoki Kanno, Kento Suzuki, Atsushi Komuro, Akira Ando, Keisuke Takashima, Toshiro Kaneko, Hidemasa Yasuda, Kenji Hayama, Tomoka Tsujiuchi, Tsutomu Nakajima, Kazuyuki Nakakita

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The flow control effects of a nanosecond-pulse-driven dielectric barrier discharge plasma actuator (ns-DBDPA) in dynamic stall flow were experimentally investigated. The ns-DBDPA was installed on the leading edge of an airfoil model designed in the form of a helicopter blade. The model was oscillated periodically around 25% of the chord length. Aerodynamic coefficients were calculated using the pressure distribution, which was obtained by the measurement of the unsteady pressure by sensors inside the model. The flow control effect and its sensitivity to pitching oscillation and ns-DBDPA control parameters are discussed using the aerodynamic coefficients. The freestream velocity, the mean of the angle of attack, and the reduced frequency were employed as the oscillation parameters. Moreover, the nondimensional frequency of the pulse voltage, the peak pulse voltage, and the type and position of the ns-DBDPA were adopted as the control parameters. The result shows that the ns-DBDPA can decrease the hysteresis of the aerodynamic coefficients and a flow control effect is obtained in all cases. The flow control effect can be maximized by adopting the low nondimensional frequency of the pulse voltage.

Original languageEnglish
Article number1376
JournalEnergies
Volume16
Issue number3
DOIs
Publication statusPublished - 2020 Mar 2

Keywords

  • Dynamic stall
  • Flow control
  • Nanosecond pulse discharge
  • Plasma actuators
  • Pressure measurement

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

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