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Characteristics of Turbulent Boundary Layr with 3-dimensional Separation

Research Project

Project/Area Number 06302063
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section総合
Research Field 船舶工学
Research InstitutionOsaka University

Principal Investigator

SUZUKI Toshio  Osaka Univ.Fac.Eng., Prof., 工学部, 教授 (80029107)

Co-Investigator(Kenkyū-buntansha) MORI Kazuhiro  Hiroshima Univ.Fac.Eng., Assoc.Prof., 工学部, 教授 (90011171)
OKUNO Taketosi  Osaka pref.Univ.Fac.Eng., Assoc.Prof., 工学部, 教授 (60081395)
TODA Yasuyuki  Kobe Mercantile Univ.Fac.Nav., Assoc.Prof., 商船学部, 助教授 (20172166)
SUZUKI Hiroyoshi  Osaka Univ.Fac.Eng., Res.Assoc., 工学部, 助手 (00252601)
Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥14,900,000 (Direct Cost: ¥14,900,000)
Fiscal Year 1996: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1995: ¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1994: ¥6,600,000 (Direct Cost: ¥6,600,000)
Keywords3-Dimensional Hot Wire / Evaluation of Turbulence Model / Distributions of Reynolds Stresses / 3-Dimensional Separation / Turbulence Data-base around Stern Flow Field / 肥大船船尾流場 / レイノルズ応力 / 乱流モデル / 速度変動の位相差 / 長周期変動 / 熱線流速計の精度確認 / 乱動計測 / 船尾近傍の乱流場 / 伴流内の周波数解析
Research Abstract

Characteristics of the turbulence with longitudinal vortices and deformation of boundary layr, due to the existence of the vortices are investigated.
Obtained results are as follows ;
1. Characteristic of 3-dimensional turbulent flow around a fine ship model (Series 60, CB=0.6) and a full ship form (Ryuko-Maru) were investigated experimentally. The results are,
(1) Accurate data-base for 3-D averaged velocity components, vortices and Reynolds stress distributions are obtained.
(2) Position of the peak value of longitudinal vortices are not correspond to the peak of Reynolds stress and turbulence strength are weak inside of the longitudinal vortices.
(3) Wake distribution is deformed by vortices which was caused by 3-D separation near the stern bilge.
(4) Phase of fluctuation between the velocity inside of the longitudinal vortices and the outer region of the vortices are differ each other. Strong correlation between the fluctuations of the area of longitudinal vortices and fluctuations of x-component of velocity are recognized.
(5) Estimated normal stress components using Boussinesq's hypothesis are well coincident with experimental results but shear stress components are not coincident.
(6) Turbulence model based on the Boussinesq's hypothesis underestimate the shearing stress and the damping method for the kinematic eddy viscosity by helicity underestimate more the shearing stresses.
2. CFD calculations are carried out and the results show qualitative agreement with experimental results, i.e.weak deformation of the wake distribution is calculated.
3. Shearing stress components on the hull surface are measured by image processing technique.
4. Bow wave breaking are calculated with the zero tangential stress conditions on the free surface.

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] 鈴木 博善: "Experimental Study on a Turbulent Boundary Layer with a Longitudial Vortex-Turbulence Measurements by Triple Sensor Hot Wire-" 関西造船協会誌. 第225号. 47-56 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hiroyoshi SUZUKI: "Turbulence Measurements on a Turbulent Boundary Layer with a Longitudinal Vortex by Triple Sensor Hot Wire" Proceedings of KOJAM'96. 65-72 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 鈴木 敏夫: "3次元剥離渦を含む船尾乱流境界層の特性" 日本流体力学会誌「ながれ」. 14巻別冊. 133-136 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 鈴木 博善: "模型船船尾まわりの乱動計測 -シリーズ60,CB=0.6-" 関西造船協会誌. 227号. 29-40 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 鈴木 敏夫: "船尾流場におけるレイノルズ応力とその数値予測について" 日本流体力学会誌「ながれ」. 16-Supp1. 137-1-138-2 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 奥野 武俊: "油膜を用いた限界流線と壁面摩擦応力の計測" 日本造船学会論文集. 第176号. 59-65 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 杉井 康彦: "流場モデルを用いた速度場の画像計測" 可視化情報学会誌. Vol.16 Spl-No.1. 207-210 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 杉井 康彦: "流場モデルを用いた速度場の画像計測(第2報)" 可視化情報学会誌. Vol.16 Spl-No.2. 55-58 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 奥野 武俊: "肥大船型模型の船首付近の限界流線観察" 可視化情報学会誌. Vol.17 Spl-No.2. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Seung-Myun Hwangbo: "Numerical Investigation on Wave Reduction by Wing Attached to Hull" Jour. of The Society of Naval Architects of Japan. Vol.177. 41-48 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Moon-Chan Kim: "A Numerical Scheme with Unstructured Moving Grid System and Its Application to Two-Dimensional Complicated Flows" Jour. of The Society of Naval Architects of Japan. Vol.181. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hiroyoshi SUZUKI,Kazuki YABUSHITA,Yasuyuki TODA,Toshio SUZUKI,Hedeyuki ARAI: "Experimental Study on a Turbulent Boundary Layr with a Longitudinal Vortex-Turbulence Measurement by Triple Sensor Hot Wire-" Journal of the Kansai Society of Naval Architects, Japan. No.225. 47-56 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hiroyoshi SUZUKI,Kazuki YABUSHITA,Yasuyuki TODA,Toshio SUZUKI,Hideyuki ARAI: "Turbulence Measurements on a Turbulent Boundary Layr with a Longitudinal Vortex by Triple Sensor Hot Wire" Proceedings of KOJAM'96. 65-72 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Toshio SUZUKI,Taketoshi OKUNO,Kazuo NOZAWA,Hiroyoshi SUZUKI: "Characteristics of Turbulent Boundary Layr in a Stem Flow Field with Longitudinal Vortices" Journal of the Japan Society of Fluid Mechanics. Vol.14-Suppl.133-136 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hiroyoshi SUZUKI,Toshio SUZUKI,Satoshi MIYAZAKI: "Turbulence Measurements in a Stem Flow Field of a Ship Model-Series 60, CB=0.6" Journal of the Kansai Society of Naval Architects, Japan. No.227. 29-40 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Toshio SUZUKI,Hiroyoshi SUZUKI,Satoshi MIYAZAKI: "Study on Reynolds Stress Distributions in a Stern Flow Field" Journal of the Japan Society of Fluid Mechanics. Vol.16-Suppl.137. (1) -138 (2) (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Taketoshi OKUNO,Shigeru NISHIO,Hiroshi HORIUCHI: "Image Measurement of Wall Friction Using Oil Film" Journal of the Society of Naval Architects of Japan. Vol.176. 59-65 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yasuhiko SUGII,Taketoshi OKUNO,Shigeru NISHIO: "Image Measurement using Governing Equation of Fluid Flow" Journal of the Visualization Society of Japan. Vol.16-Suppl.No.1. 207-210 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yasuhiko SUGII,Taketoshi OKUNO,Shigeru NISHIO: "Image Measurement using Governing Equation of Fluid Flow (2nd report)" Journal of the Visualization Society of Japan. Vol.16-Suppl.No.2. 55-58 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Taketoshi OKUNO,Shigeru NISHIO,Kozo UEDA: "Limiting Streamline on Fore Part of Full Hull Model" Journal of the Visualization Society of Japan. Vol.17-Suppl.No.2. 213-216 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Seung-Myun HWANGBO,Kazu-hiro MORI,Yasuyuki DOI: "Numerical Investigation on Wave Reduction by Wings Attached to Hull" Journal of The Society of Naval Architects of Japan. Vol.177. (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Moon-Chan KIM,Kazu-hiro MORI,Yasuyuki DOI,Qi XU: "A Numerical Scheme with Unstructured Moving Grid System and Its Application to Two-Dimensional Complicated Flows" Journal of The Society of Naval Architects of Japan. Vol.181. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 鈴木 博善: "模型船船尾まわりの乱動計測-シリーズ60、C_B=0.6-" 関西造船協会 講演論文集. 第7号. 7-12 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 中谷 直樹: "人工環礁を用いた水質浄化システム" 関西造船協会 講演論文集. 第6号. 113-118 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 西尾 茂: "可視化画像を用いた船体まわりの波高分布計測" 関西造船協会 講演論文集. 第6号. 129-132 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 鈴木 博善: "Experimental Study on a Turbulent Boundary Layer with a Longitudial Vortex -Turbulence Measurements by Triple Sensor Hot Wire-" 関西造船協会講演論文集. 第5号. 1-5 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 皇甫 承勉: "Numerical Investigation on Wave Reduction by Wing Attached to Hull" 日本造船学会講演論文集. vol.177. 41-48 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 鈴木 敏夫: "3次元剥離渦を含む船尾乱流境界層の特性" 第27回乱流シンポジウム講演論文集,1995. 133-136 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 田中 寿夫: "厚い境界層の積分型解法による船尾流れの推定(第2報)" 関西造船協会誌. 第222号. 1-10 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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