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Study on drag reduction in turbulent boundary layer flow of heterogeneous surfactant solutions

Research Project

Project/Area Number 21760126
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Fluid engineering
Research InstitutionNagoya Institute of Technology

Principal Investigator

TAMANO Shinji  Nagoya Institute of Technology, 大学院・工学研究科, 助教 (40345947)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords流体工学 / 抵抗低減 / 乱流境界層 / 界面活性剤 / 可視化観察 / LDV計測 / 濃度分布 / 速度場計測 / トラバースシステム
Research Abstract

In this study, first a slot injection system of surfactant solution was constructed. Next, the flow visualization and LDV measurements were performed in the flat-plate turbulent boundary layer flow with water or surfactant solution injection from the wall, in order to clarify the mechanism of drag reduction. It is found that in the case of surfactant solution injection, layered-structures parallel to the wall developed in the streamwise direction, and the wall-normal turbulence near the wall is strongly attenuated. Moreover, in both cases of homogeneous and heterogeneous (injected) surfactant solutions mean velocities scaled by the friction velocity are well arranged by the amount of the drag reduction, in which the mean velocity increases with the increase in the drag reduction ratio.

Report

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

    (10 results)

All 2011 2010 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (4 results) Remarks (2 results)

  • [Journal Article] Comparison of turbulence structures at large and small drag reduction ratios in turbulent boundary layer of surfactant solutions2011

    • Author(s)
      Shinji TAMANO, Motoyuki ITOH
    • Journal Title

      Journal of Turbulence Vol.12, No.18

      Pages: 1-220

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of turbulence structures at large and small drag reduction ratios in turbulent boundary layer of surfactant solutions2011

    • Author(s)
      Shinji TAMANO, Motoyuki ITOH
    • Journal Title

      Journal of Turbulence

      Volume: Vol.12, No.18 Pages: 1-22

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Turbulent drag reduction in nonionic surfactant solutions2010

    • Author(s)
      Shinji TAMANO、Motoyuki ITOH、Katsuo KATO、Kazuhiko YOKOTA
    • Journal Title

      Physics of Fluids Vol.22, No.055102

      Pages: 1-120

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Turbulent drag reduction in nonionic surfactant solutions2010

    • Author(s)
      Shinji TAMANO, Motoyuki ITOH, Katsuo KATO, Kazuhiko YOKOTA
    • Journal Title

      Physics of Fluids

      Volume: Vol.22, No.055102 Pages: 1-12

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 乱流境界層内への界面活性剤注入による抵抗低減2011

    • Author(s)
      松野裕樹、玉野真司、森西洋平
    • Organizer
      日本機械学会東海支部第60期総会講演会 pp.175-176
    • Place of Presentation
      豊橋技術科学大学
    • Year and Date
      2011-03-15
    • Related Report
      2010 Final Research Report
  • [Presentation] 乱流境界層内への界面活性剤注入による抵抗低減2011

    • Author(s)
      松野裕樹
    • Organizer
      日本機械学会東海支部 第60期総会・講演会
    • Place of Presentation
      愛知県豊橋市 豊橋技術科学大学
    • Year and Date
      2011-03-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] 回流式円管流における非イオン性界面活性剤水溶液の抵抗低減2010

    • Author(s)
      宮川涜太郎、玉野真司、森西洋平
    • Organizer
      日本機械学会第88期流体工学部門講演会 pp,383-384
    • Place of Presentation
      山形大学工学部
    • Year and Date
      2010-10-30
    • Related Report
      2010 Final Research Report
  • [Presentation] 回流式円管流における非イオン性界面活性剤水溶液の抵抗低減2010

    • Author(s)
      宮川洸太郎
    • Organizer
      日本機械学会流体工学部門講演会
    • Place of Presentation
      山形県米沢市 山形大学
    • Related Report
      2010 Annual Research Report
  • [Remarks] ホームページ等

    • URL

      http://tamano.web.nitech.ac.jp

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://tamano.web.nitech.ac.jp/

    • Related Report
      2010 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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