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Study on Active Suppression of Jet Noise

Research Project

Project/Area Number 20360381
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Aerospace engineering
Research InstitutionThe University of Tokyo

Principal Investigator

WATANABE Toshinori  The University of Tokyo, 大学院・工学系研究科, 教授 (10201211)

Co-Investigator(Kenkyū-buntansha) HIMENO Takehiro  東京大学, 大学院・工学系研究科 (60376506)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2010: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2009: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Keywordsジェット騒音 / 騒音低減 / マイクロジェット / 超音速ジェット / 衝撃波 / スクリーチ / 能動制御 / シンセティックジェット
Research Abstract

Jet noise reduction is required for the realization of environmentally-friendly and highly-efficient supersonic jet propulsion system. In the present study, experimental and numerical investigations were performed in order to clarify the effects of microjet injection on supersonic jet noise and the mechanism of the noise reduction. Far field acoustic measurements were executed and the reduction of the overall sound pressure level up to 10dB was found. Flow field visualization and CFD analysis clarified that shock cell structure was changed and large fluctuation of jet shear layers was suppressed by microjet injection. A new approach with Piezo-electric actuator was tried to reduce the jet noise as well.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (17 results)

All 2010 2009 2008

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (16 results)

  • [Journal Article] Experimental Study of Supersonic Jet Noise Reduction with Microjet Injection2009

    • Author(s)
      Watanabe T., Okada, R., Uzawa, S., Himeno, T., Oishi, T.
    • Journal Title

      Proceedings of ASME Turbo Expo 2009 1

      Pages: 1-8

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] マイクロジェットによる超音速ジェット騒音の低減効果と流れ場の変化2010

    • Author(s)
      岡田隆一, 渡辺紀徳, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      日本機械学会流体工学部門第30回流力騒音シンポジウム
    • Place of Presentation
      東京 日本機械学会
    • Year and Date
      2010-12-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] マイクロジェット噴射による超音速ジェット騒音の抑制2010

    • Author(s)
      岡田隆一, 渡辺紀徳, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      第38回日本ガスタービン学会定期講演会
    • Place of Presentation
      徳島市
    • Year and Date
      2010-10-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Investigation of Microjet Injection for Reduction of Supersonic Jet Noise2010

    • Author(s)
      岡田隆一, 渡辺紀徳, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      ASME Turbo Expo 2010
    • Place of Presentation
      イギリス,グラスゴー
    • Year and Date
      2010-06-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] マイクロジェット噴射による超音速ジェット騒音低減に関する研究2010

    • Author(s)
      岡田隆一, 渡辺紀徳, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      2010年度日本航空宇宙学会年会講演会
    • Place of Presentation
      東京 東京大学
    • Year and Date
      2010-04-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] Experimental and Numerical Study of Microjet Injection for Supersonic Jet Noise Reduction2010

    • Author(s)
      Okada, R., Watanabe, T., Uzawa, S., Himeno, T., Oishi, T.
    • Organizer
      Asian Joint Conference on Propulsion and Power 2010
    • Place of Presentation
      宮崎
    • Year and Date
      2010-03-05
    • Related Report
      2009 Annual Research Report
  • [Presentation] Investigation of Microjet Injection for Reduction of Supersonic Jet Noise2010

    • Author(s)
      岡田隆一, 渡辺紀徳, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      ASME GT(2010-23036)
    • Related Report
      2010 Final Research Report
  • [Presentation] マイクロジェット噴射による超音速ジェット騒音の抑制2010

    • Author(s)
      岡田隆一, 渡辺紀徳, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      第38回日本ガスタービン学会定期講演会(徳島)講演論文集 pp.63-68
    • Related Report
      2010 Final Research Report
  • [Presentation] マイクロジェットによる超音速ジェット騒音の低減2009

    • Author(s)
      岡田隆一, 渡辺紀徳, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      日本機械学会流体工学部門第29回流力騒音シンポジウム
    • Place of Presentation
      神戸
    • Year and Date
      2009-12-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] Effect of Microjet Injection on Supersonic Jet Noise2009

    • Author(s)
      Okada, R., Watanabe, T., Uzawa, S., Himeno, T., Oishi, T.
    • Organizer
      International Symposium on Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines 12
    • Place of Presentation
      ロンドン,英国
    • Year and Date
      2009-09-02
    • Related Report
      2009 Annual Research Report
  • [Presentation] Experimental Study of Microjet Injection for Supersonic Jet Noise Reduction2009

    • Author(s)
      Okada, R., Watanabe, T., Uzawa, S., Himeno, T., Oishi, T.
    • Organizer
      Asian Congress on Gas Turbines 2009
    • Place of Presentation
      東京
    • Year and Date
      2009-08-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] マイクロジェット噴射による超音速ジェット騒音の低減2009

    • Author(s)
      岡田隆一,渡辺紀徳,鵜沢聖治,姫野武洋,大石勉
    • Organizer
      日本航空宇宙学会第49回航空原動機・宇宙推進講演会
    • Place of Presentation
      長崎市
    • Year and Date
      2009-03-05
    • Related Report
      2008 Annual Research Report
  • [Presentation] Experimental Study of Supersonic Jet Noise Reduction with Microjet Injection2009

    • Author(s)
      渡辺紀徳, 岡田隆一, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      ASME GT(2009-59436)
    • Related Report
      2010 Final Research Report
  • [Presentation] Effect of Microjet Injection on Supersonic Jet Noise, ISUAAAT122009

    • Author(s)
      岡田隆一, 渡辺紀徳, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      (I12-S4-3)
    • Place of Presentation
      (CD-ROM)
    • Related Report
      2010 Final Research Report
  • [Presentation] マイクロジェット噴射による超音速ジェット騒音の低減効果に関する研究2008

    • Author(s)
      岡田隆一,渡辺紀徳,鵜沢聖治,姫野武洋,大石勉
    • Organizer
      日本機械学会流体工学部門第28回流力騒音シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2008-12-06
    • Related Report
      2008 Annual Research Report
  • [Presentation] マイクロジェットを用いた超音速ジェット騒音低減の実験的検討2008

    • Author(s)
      渡辺紀徳,岡田隆一,姫野武洋,鵜沢聖治,大石勉
    • Organizer
      日本ガスタービン学会・ガスタービン定期講演会
    • Place of Presentation
      日立市
    • Year and Date
      2008-10-16
    • Related Report
      2008 Annual Research Report
  • [Presentation] マイクロジェットを用いた超音速ジェット騒音低減の実験的検討2008

    • Author(s)
      渡辺紀徳, 岡田隆一, 鵜沢聖治, 姫野武洋, 大石勉
    • Organizer
      第36回日本ガスタービン定期講演会(日立)講演論文集 pp.149-154
    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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