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Hydrodynamic study on propulsive mechanisms of undulatory swimming

Research Project

Project/Area Number 15H06314
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionKyoto University

Principal Investigator

Ishimoto Kenta  京都大学, 白眉センター, 特定助教 (00741141)

Research Collaborator GAFFNEY Eamonn  University of Oxford, Wolfson Centre for Mathematical Biology, Mathematical Institute, Associate Professor
TAKEHIRO Shin-Ichi  京都大学, 数理解析研究所, 准教授 (30274426)
Project Period (FY) 2015-08-28 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords生物流体力学 / 低レイノルズ数流れ / 最適化 / 流体力学 / 鞭毛 / 遊泳 / 推進力 / 数値計算
Outline of Final Research Achievements

Undulatory swimming at low Reynolds number has been investigated. By using a genetic algorithm, optimal swimming on the swimming efficiency is computed, and it is found that he results are compatible with real biological swimmers. Further studies on hyperactivation of mammalian spermatozoa has demonstrated multiple mechanical functions in fertilization processes by our fluid dynamic numerical computation.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • Research Products

    (11 results)

All 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (5 results) Remarks (2 results)

  • [Int'l Joint Research] オックスフォード大学(英国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] University of Oxford(英国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Mechanical tuning of mammalian sperm behaviour by hyperactivation, rheology and substrate adhesion: a numerical exploration2016

    • Author(s)
      Kenta Ishimoto and Eamonn A. Gaffney
    • Journal Title

      Journal of the Royal Society Interface

      Volume: 13 Issue: 124 Pages: 20160633-20160633

    • DOI

      10.1098/rsif.2016.0633

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Hydrodynamic evolution of sperm swimming: Optimal flagella by a genetic algorithm2016

    • Author(s)
      Kenta Ishimoto
    • Journal Title

      Journal of Theoretical Biology

      Volume: 399 Pages: 166-174

    • DOI

      10.1016/j.jtbi.2016.03.041

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 流体力学的に最適な鞭毛遊泳について2017

    • Author(s)
      石本健太
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学(大阪府豊中市)
    • Year and Date
      2017-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] Sperm dynamics near adhesive boundaries2016

    • Author(s)
      Kenta Ishimoto and Eamonn A. Gaffney
    • Organizer
      Interdisciplinary Applications of Nonlinear Science
    • Place of Presentation
      鹿児島大学(鹿児島市)
    • Year and Date
      2016-11-05
    • Related Report
      2016 Annual Research Report
  • [Presentation] A study on optimal flagellar swimming2016

    • Author(s)
      石本健太
    • Organizer
      生物流体現象におけるミクロ運動とマクロ運動
    • Place of Presentation
      京都大学(京都府京都市)
    • Year and Date
      2016-10-25
    • Related Report
      2015 Annual Research Report
  • [Presentation] Multiple mechanical functions of sperm hyperactivation2016

    • Author(s)
      Kenta Ishimoto and Eamonn A. Gaffney
    • Organizer
      International Conference: Microswimmers 2016
    • Place of Presentation
      Bonn (Germany)
    • Year and Date
      2016-10-05
    • Related Report
      2016 Annual Research Report
  • [Presentation] Hydrodynamic evolution of sperm swimming2016

    • Author(s)
      Kenta Ishimoto
    • Organizer
      2016 Annual Meeting of the Society for Mathematical Biology and European Conference for Mathematical and Theoretical Biology
    • Place of Presentation
      University of Nottingham (Nottingham, UK)
    • Year and Date
      2016-07-14
    • Related Report
      2015 Annual Research Report
  • [Remarks]

    • URL

      http://www.kurims.kyoto-u.ac.jp/~ishimoto/jp/

    • Related Report
      2016 Annual Research Report
  • [Remarks]

    • URL

      http://www.kurims.kyoto-u.ac.jp/~ishimoto/jp/

    • Related Report
      2015 Annual Research Report

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Published: 2015-08-26   Modified: 2022-01-31  

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