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Study of unsteady phenomena of breakdown of tip vortex generated at supersonic flow field during the pass through oblique shock wave

Research Project

Project/Area Number 09650214
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionKitakyushu National College of Technology

Principal Investigator

KASHIMURA Hideo  Dept. of Control and Information, Kitakyushu National College of Technology, Prof., 制御情報工学科, 教授 (00044397)

Co-Investigator(Kenkyū-buntansha) YASUNOBU Tsuyoshi  Dept. of Control and Information, Kitakyushu National College of Technology, Associate Prof., 制御情報工学科, 助教授 (70239771)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1999: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsCompressible flow / Shock wave / Diffraction / Vortex / Unsteady flow / 可視化 / 超音速噴流
Research Abstract

The unsteady phenomena of the flow field with the breakdown of the vortex by interaction with the shock wave was investigated in this study. The numerical analysis using the TVD method for the diffraction of the propagating shock wave at the sharp corner was carried out and the unsteady characteristics of the vortex behind the secondary shock wave was discussed. The flow visualization by means of the schlieren method was carried out to investigate the flow field with the interaction of vortex and a oblique shock wave was also carried out and the temperature distribution on the wedge surface was measured by the thermo-sensitive liquid crystal sheet with image processing system.
obtained results from the numerical and the experimental analysis are as follows ; 1.The temperature distribution on a wedge surface caused by interaction with a shock wave and vortex is clearly showed in the thermo-sensitive liquid crystal sheet. 2.The distortion of an oblique shock wave was observed by the interaction with vortex and influences to the position of a shock wave and a temperature distribution on a wedge surface was cleared. It is shown that the distortion of the oblique shock wave strongly depends on the pressure ratio of flow field and the position of a vortex generator. 3.By means of the pass through the vortex at the corner behind the diffracting shock of a opposite shock wave, the roll up of vortex to the corner is occurred and the triple point and the slip surface is generated.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] 樫村秀男: "伝播する回折衝撃波背後の流れにおける渦形成"北九州工業高等専門学校研究報告. 31. 55-60 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 樫村秀男: "斜め衝撃波と渦との干渉により生じる衝撃波の変形"北九州工業高等専門学校研究報告. 32. 83-86 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 樫村秀男: "渦と衝撃波との干渉により生じる楔表面上の温度分布の感温液晶による計測"高速度撮影とフォトニクスに関する総合シンポジウム1999講演論文集. -. 301-304 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 安信強: "斜め衝撃波と渦との干渉に及ぼす圧力比の非定常的変化の影響"北九州工業高等専門学校研究報告. 33. 81-88 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.KASHIMURA: "Vortex Generation behind the Diffracted Shock Wave."Research Report of Kitakyushu National College of Technology. 31(in Japanese). 55-60 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.KASHIMURA: "Distortion of Shock Wave Caused by Interaction between Oblique Shock Wave and Vortex."Research Report of Kitakyushu National College of Technology. 32 (in Japanese). 83-86 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.KASHIMURA: "Measurement of Temperature Distribution on Wedge Surface Generated by Interaction between Vortex and Shock Wave Using Thermo-Liquid Crystal."Proc. Of Symp. On High Speed Photography and Photonics. 1999 (in Japanese). 301-304 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.YASUNOBU: "Effect on Unsteady Fluctuation of Pressure Ratio for Interaction Between Oblique Shock Wave and Vortex."Research Report of Kitakyushu National College of Technology. 33 (in Japanese). 81-88 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 安信強、宮副久美、樫村秀男: "定在する斜め衝撃波と渦との干渉により生じる楔表面上の温度分布"日本機械学会九州支部講演論文集. No.998-3. 167-168 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 樫村秀男、安信強、宮副久美: "渦と衝撃波との干渉により生じる楔表面上の温度分布の感温液晶による計測"高速度撮影とフォトニクスに関する総合シンポジウム1999講演論文集. 301-304 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 樫村秀男、安信強、宮副久美: "渦と斜め衝撃波との干渉により生じる楔表面上の温度分布の感温液晶による計測"北九州工業高等専門学校研究報告. 33号. 81-87 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 宮副久美、安信強、樫村秀男、田上宗男: "渦と斜め衝撃波との干渉による楔表面上の温度分布の局所的変化"日本機械学会中国四国支部講演論文集. No.005-1. 159-160 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 安信 強,他2名: "渦と干渉する超音速噴流中の斜め衝撃波の変形" 日本機械学会流体工学部門講演会講演論文集. 98・15. 349-350 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 樫村秀男,他2名: "斜め衝撃波と渦との干渉により生じる衝撃波の変形" 北九州工業高等専門学校研究報告. 32. 83-86 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小林稔道,他2名: "超音速噴流との干渉によって生じる傾斜壁面上の温度分布" 日本機械学会中国四国支部講演論文集. 995・1. 147-148 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 宮副久美,他2名: "定在する斜め衝撃波と渦との干渉により生じる流れ場の特性" 日本機械学会中国四国支部講演論文集. 995・1. 269-270 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 樫村秀男, 安信強: "伝播する回折衝撃波背後の流れ" 日本航空宇宙学会西部支部講演論文集. 44-47 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 樫村秀男: "伝播する回折衝撃波背後の流れにおける渦形成" 北九州工業高等専門学校研究報告. 31号. 55-60 (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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