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Drag Reduction of Bio-Fiber Suspenshins

Research Project

Project/Area Number 23560201
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Fluid engineering
Research InstitutionTokyo Metropolitan University

Principal Investigator

WATANABE Keizo  首都大学東京, 理工学研究科, 名誉教授 (20072134)

Co-Investigator(Kenkyū-buntansha) SATOSHI Ogata  首都大学東京, 理工学研究科, 准教授 (50315751)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords流体工学 / 内部流 / 円管内流れ / 圧力損失 / バイオ繊維懸濁液 / 抵抗減少効果 / 流泰工学 / 抵抗減少 / 機械工学 / バイオ繊維
Research Abstract

Drag reduction phenomena of bio-fiber suspensions of silk threads, cotton yarn and hemp fibers in a circular pipe were investigated within the aspect ratio l/d=2-52 and the concentration Cw=250-2,500ppm, experimentally.For comparison, measurements were also performed on the Newtonian solvent. Pressure drop measurements indicated that the wall shear stress of the pipe decreased by a maximumm of approximately 20% compared to that of water. Drag reduction ratio were correlated with the non-dimensional parameter involving Young's modurus by non-dimensional analysis. It was shown that the equation agrees with the experimental data within 30%.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (17 results)

All 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (14 results) (of which Invited: 1 results)

  • [Journal Article] 界面活性剤水溶液の抵抗減少効果に関する研究(溶液や添加剤が円管内流動に及ぼす影響)2013

    • Author(s)
      中村大吾,栃木弘,小方聡、渡辺敬三
    • Journal Title

      日本機械学会論文集(B編)

      Volume: 79巻,801号 Pages: 152-160

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] 界面活性剤水溶液の抵抗減少効果に関する研究(溶媒や添加剤が円管内流動に及ぼす影響)2013

    • Author(s)
      中村大吾,栃木 弘,小方 聡,渡邊敬三
    • Journal Title

      日本機械学会論文集(B編)

      Volume: 79巻801号 Pages: 152-160

    • NAID

      130003374825

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 界面活性剤水溶液の抵抗減少効果に関する研究(溶媒や添加剤が円管内流動に及ぼす影響)2013

    • Author(s)
      中村 大吾,栃木 弘,小方 聡,渡辺 敬三
    • Journal Title

      日本機械学会論文集

      Volume: B編 Pages: 1-8

    • NAID

      130003374825

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] バイオ繊維懸濁液の抵抗減少効果2013

    • Author(s)
      渡辺敬三,小方聡
    • Organizer
      日本機械学会2013年年次大会
    • Place of Presentation
      岡山大学
    • Related Report
      2013 Final Research Report
  • [Presentation] Drag Reduction of Fiber Suspensions2013

    • Author(s)
      K. Watanabe and S. Ogata
    • Organizer
      ICFM 2013
    • Place of Presentation
      Barcelona, Spain
    • Related Report
      2013 Final Research Report
  • [Presentation] Drag reduction of nata de coco suspensions in circular pipe flow2013

    • Author(s)
      S. Ogata
    • Organizer
      ICR&MM
    • Related Report
      2013 Final Research Report
  • [Presentation] バイオ繊維懸濁液の抵抗減少効果2013

    • Author(s)
      渡邊敬三
    • Organizer
      日本機械学会2013年度年次大会
    • Place of Presentation
      岡山大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Drag Reduction of Fiber Suspensions2013

    • Author(s)
      Keizo Watanabe
    • Organizer
      ICFM 2013(International Conference on Fluid Mechanics、2013)
    • Place of Presentation
      Barcelona, Spain
    • Related Report
      2013 Annual Research Report
  • [Presentation] Drag reduction of nata de coco suspensions in circular pipe flow2013

    • Author(s)
      Satoshi Ogata
    • Organizer
      International conference on rheology and modelling of materials
    • Place of Presentation
      Miskolc, Hungary
    • Related Report
      2013 Annual Research Report
  • [Presentation] Flow Properties of Bamboo Fiber Suspensions2012

    • Author(s)
      T. Kubo and S. Ogata
    • Organizer
      ASME 2012 IMEC&E
    • Related Report
      2013 Final Research Report
  • [Presentation] Laminar Drag Reduction and Its Application2012

    • Author(s)
      K. Watanabe
    • Organizer
      Joint ERCOFTAC/PLASMAERO Workshop
    • Place of Presentation
      Florida, USA
    • Related Report
      2013 Final Research Report
  • [Presentation] バイオポリマーの抵抗減少効果とその応用2012

    • Author(s)
      渡邊敬三,栃木 弘,小方 聡, 中村大吾
    • Organizer
      日本機会学会北陸信越支部総会講演会(招待講演)
    • Place of Presentation
      金沢工業大学
    • Related Report
      2011 Research-status Report
  • [Presentation] 層流抵抗現象効果とその応用

    • Author(s)
      渡辺敬三
    • Organizer
      日本機械学会流体工学部門講演会
    • Place of Presentation
      京都
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Laminar Drag Reduction and Its Application

    • Author(s)
      Keizo Watanabe
    • Organizer
      Joint ERCOFTAC/PLASMAERO Workshop
    • Place of Presentation
      Toulouse, France
    • Related Report
      2012 Research-status Report
  • [Presentation] Flow properties of bamboo fiber suspensions

    • Author(s)
      Takuya Kubo and Satoshi Ogata,
    • Organizer
      ASME 2012 International Mechanical Engineering Congress & Exposition
    • Place of Presentation
      Houston, USA
    • Related Report
      2012 Research-status Report
  • [Presentation] 天然繊維懸濁液の円管内流動に関する研究

    • Author(s)
      小方 聡, 久保拓也, 藁科 純
    • Organizer
      日本流体力学会 年会
    • Place of Presentation
      高知
    • Related Report
      2012 Research-status Report
  • [Presentation] 竹繊維懸濁液の抵抗減少効果に関する研究

    • Author(s)
      久保拓也,小方 聡
    • Organizer
      日本機械学会2012年度年次大会
    • Place of Presentation
      金沢
    • Related Report
      2012 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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