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Study of Oscillation Characteristics of Shock Trains Formed in Supersonic Internal Flow and its Suppressing Method

Research Project

Project/Area Number 13450078
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionUniversity of Kitakyushu (2002-2003)
Kyushu University (2001)

Principal Investigator

MATSUO Kazuyasu  University of Kitakyushu, Faculty of Environmental Engineering, Professor, 国際環境工学部, 教授 (30037759)

Co-Investigator(Kenkyū-buntansha) MIYAZATO Yoshiaki  Kyushu University, Interdisciplinary Graduate School of Engineering Sciences, Associate Professor, 大学院・総合理工学研究院, 助教授 (30253537)
AOKI Tohsiyuki  Kyushu University, Interdisciplinary Graduate School of Engineering Sciences, Professor, 大学院・総合理工学研究院, 教授 (20150922)
KATANODA Hiroshi  University of Kitakyushu, Faculty of Environmental Engineering, Lecturer, 国際環境工学部, 講師 (40336946)
半田 太郎  九州大学, 大学院・総合理工学研究院, 助手 (30284566)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2003: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 2001: ¥5,600,000 (Direct Cost: ¥5,600,000)
Keywordssupersonic flow / shock train / pseudo-shock wave / shock / boundary layer interaction / flow oscillation / 境界層干渉
Research Abstract

(1)Shock trains and pseudo-shocks have been formed insupersonic internal duct flows due to the interaction between a normal shock wave and a turbulent boundary layer. The three dimensional flow structure of the shock trains and pseudo-shocks has been investigated numerically and experimentally, and the complicated shock structure was made clear.
(2)Multiple shocklets generated in a two-dimensional transonic diffuser was observed with a high speed camera combined with schlieren method, and the motions of each shock wave have been recorded. The experimental results were compared with the calculated values assuming a pressure disturbance given by the sine function at the channel exit, and it is shown that the experiments agree well with the calculated results.
(3)From the above study, it is concluded that the multiple shocklet pattern appears when the amplitude of disturbance is not large and the diverging part of the channel downstream of the ordinary shock wave is long.
(4)The self-excited shock wave oscillation in two-dimensional supersonic and transonic diffusers was investigated experimentally. The results show that a pressure disturbance is generated near the stem of the shock wave and it moves downstream. In the downstream region where the boundary layer becomes highly turbulent, another disturbance is generated and it causes the shock wave oscillation.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] 半田太郎: "衝撃波を含むダクト内超音速流れ場の数値解析"九州大学情報基盤センター年報. 2. 35-44 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Matsuo: "Structure of Shock Trains in Constant Area Ducts"Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics. 3. 1859-1865 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Handa: "Formation of Multiple Shocklets in a Transonic Diffuser Flow"Shock Waves-An International Journal. 11. 423-430 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Handa: "Mechanism of Shock Wave Oscillation in Transonic Diffusers"AIAA Journal. 41. 64-70 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Matsuo: "Shock Train and Pseudo-Shock Phenomena in Supersonic Internal Flows"Journal of Thermal Science. 12. 204-208 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Taro Handa, et al.: "Numerical Simulation of the Supersonic Flow with Shock Waves in a Rectangular Duct"Annual Report of Computing and Communications Center, Kyushu University. No.2. 35-44 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kazuyasu Matsuo: "Structure of Shock Trains in Constant Area Ducts"Experimental Heat Transfer, Fluid Mechanics, and Theermodynamics. Vol.3. 1859-1864 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Taro Handa, et al.: "Formation of Multiple Shocklets in a Transonic Diffuser Flow"Shock Waves -An International Journal. Vol.11. 423-430 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Taro Handa, et al.: "Mechanism of Shock Wave Oscillation in Transonic Diffusers"AIAA Journal. Vol.41,No.1. 64-70 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kazuyasu Matsuo: "Shock Trains and Pseudo-Shock Phenomena in Supersonic Internal Flows"Journal of Thermal Science. Vol.12,No.2. 204-208 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 半田太郎: "衝撃波を含むダクト内超音速流れ場の数値解析"九州大学情報基盤センター年報. 2. 35-44 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Matsuo: "Structure of Shock Trains in Constant Area Ducts"Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics. 3. 1859-1864 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Handa: "Formation of Multiple Shocklets in a Transonic Diffuser Flow"Shock Waves - An International Journal. 11. 423-430 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Handa: "Mechanism of Shock Wave Oscillation in Transonic Diffusers"AIAA Journal. 41・1. 64-70 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Matsuo: "Shock Train and Pseudo-Shock Phenomena in Supersonic Internal Flows"Journal of Thermal Science. 12・2. 204-208 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Matsuo: "Structure of Shock Train in Constant Area Duct"Proceedings of 5^<th> World Conference of Experimental Heat Transfer and Fluid Mechanics. 3. 1859-1864 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 半田太郎: "LIF法による垂直衝撃波/境界層干渉内部流れの三次元構造の解明"日本機械学会流体工学部門講演論文集. 408-411 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 半田太郎: "衝撃波を含むダクト内超音速流れ場の数値解析"九州大学情報基盤センター年報. 2. 35-44 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Handa: "Formation of multiple shocklets in a transonic diffuser flow"Shock Waves. 11. 423-430 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Handa: "Mechanism of Shock Wave Oscillation in Transonic Diffusers"AIAA Journal. 41-1. 64-70 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Matsuo: "Structure of Shock Trains in Constant Area Duct"Proceedings of 5th World Conference on Experimental Heat Transfer and Fluid Mechanics. 3. 1859-1864 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 半田太郎: "LIF法による垂直衝撃波/境界層干渉内部流れの三次元構造の解明"日本機械学会流体工学部門講演論文集. 408-411 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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