S052024 ひも型及びチューブ型プラズマアクチュエータを用いた翼周り剥離流れの能動制御([S052-02]プラズマアクチュエータ(2))

DOI Web Site
  • 瀬川 武彦
    産業技術総合研究所新燃料自動車技術研究センター
  • 湯木 泰親
    産業技術総合研究所新燃料自動車技術研究センター
  • 松沼 孝幸
    産業技術総合研究所エネルギー技術研究部門

書誌事項

タイトル別名
  • S052024 Active Control of Flow Separation on Airfoil by String-type and Tube-type Plasma Actuators

抄録

A feedback control system for mitigating periodic flow separation on the NACA0024 airfoil was constructed by using string-type dielectric barrier discharge plasma actuators(string-type DBD-PAs) and fiber Bragg grating flow sensors(FBG-FS). A tangential jet is generated from a string-type DBD-PA placed at 5% chord from the leading edge of the airfoil. An FBG-FS is mounted near root of the cantilever beam interior surface, which detects the vibrations of the cantilever tip forced by wake flow around the trailing edge. The TTL signal to control a HV-RF power supply was output when standard deviations of Bragg wavelength fluctuations(λ_<B'>) are larger than a threshold value(γ), λ_<B'> &ge; γ=0.0028. The durations of flow separation under periodic wall oscillation were significantly reduced by the feedback control system. Tube type DBD-PAs using insulating tubes were also develop to extend utilities of string-type DBD-PAs for practical applications in turbomachineries.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _S052024-1-_S052024-5, 2013

    一般社団法人 日本機械学会

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