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Experimental study on vortical propulsion mechanism of biology locomotion on water surface

Research Project

Project/Area Number 20K04257
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 19010:Fluid engineering-related
Research InstitutionYamagata University

Principal Investigator

Rinoshika Akira  山形大学, 大学院理工学研究科, 教授 (00253906)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords生物流体工学 / アメンボ / 渦 / 水面歩行生物 / 推進メカニズム / 三次元渦 / 水面歩行 / 運動エネルギー / PIV / 三次元トモグラフィックPIV
Outline of Research at the Start

私たち人類は水に浮くための簡単な装置をつくってそれを実現しようとしてきたが、アメンボなどの生物たちは自然に備わった能力で水面上に自由に移動することができる。本研究は、流体力学の視点から、アメンボの推進力または推進効率と生み出す三次元渦構造との関係を実験的に解明し、推進メカニズムを定量的に明らかにする。得た渦推進メカニズムなどの知見を手引きとして、広い分野において新技術開発、環境負荷軽減、省エネルギーなどに応用する。本研究は自然に学んだ基礎サイエンスの知見を活かし、「自然」の機能を「ものづくり」に活用する。

Outline of Final Research Achievements

In order to quantitatively elucidate the vortex propulsion mechanism of water-walking organisms, this study aims to clarify the three-dimensional vortex structure and its dynamics under the water surface created by the water strider's legs using PIV and three-dimensional tomographic PIV. reveal. From the perspective of fluid mechanics, we clarified the relationship between the propulsive force or propulsion efficiency of the water strider and the three-dimensional vortex structure it produces, and quantitatively clarified the propulsion mechanism. Furthermore, we quantitatively elucidated the mechanism of the water strider's continuous walking on the water surface and its landing on the water.

Academic Significance and Societal Importance of the Research Achievements

アメンボなどの渦推進メカニズムの新たな解明は、将来的には極めて広い技術分野において新技術開発、環境負荷軽減、省エネルギーなどに寄与しうる。また、本研究は自然に学んだ基礎サイエンスの知見を活かし、「自然」の機能を「ものづくり」に活用するといえる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2023 2022 2021 2020

All Journal Article (9 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 9 results)

  • [Journal Article] Wake flow modification of vehicle external door mirror with slots2023

    • Author(s)
      Zheng Yan、Zhang Dan、Rinoshika Hiroka、Yang Jun、Dong Lin、Rinoshika Akira
    • Journal Title

      Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

      Volume: 237 Issue: 7 Pages: 1595-1609

    • DOI

      10.1177/09544070221098854

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Particle image velocimetry measurements of the flow structures induced by the free-falling spin flight of maple seeds2023

    • Author(s)
      Dong Lin、Wen Guoan、Rinoshika Akira
    • Journal Title

      Transactions of the Institute of Measurement and Control

      Volume: 45 Issue: 4 Pages: 700-710

    • DOI

      10.1177/01423312221122609

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of a front inclined hole on multiscale vortical structures around a wall-mounted cube2022

    • Author(s)
      Li Jiawei、Rinoshika Hiroka、Han Xiaolei、Rinoshika Akira
    • Journal Title

      Physics of Fluids

      Volume: 34 Issue: 7 Pages: 075106-075106

    • DOI

      10.1063/5.0093240

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Flow control of wake around a wall-mounted cube using a horizontal hole of different diameters2022

    • Author(s)
      Li Jiawei、Han Xiaolei、Rinoshika Hiroka、Li Wenming、Rinoshika Akira
    • Journal Title

      Physics of Fluids

      Volume: 34 Issue: 3 Pages: 035127-035127

    • DOI

      10.1063/5.0082878

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder2021

    • Author(s)
      Rinoshika Hiroka、Rinoshika Akira、Akamatsu Masato
    • Journal Title

      Ocean Engineering

      Volume: 240 Pages: 109938-109938

    • DOI

      10.1016/j.oceaneng.2021.109938

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Three-Dimensional Flow Structures Behind a Wall-Mounted Short Cylinder with a Rear Inclined Hole2021

    • Author(s)
      Rinoshika Hiroka、Rinoshika Akira、Zheng Yan、Akamatsu Masato
    • Journal Title

      AIAA Journal

      Volume: 59 Issue: 9 Pages: 3359-3374

    • DOI

      10.2514/1.j060113

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 3D flow structures behind a wall-mounted short cylinder2021

    • Author(s)
      Rinoshika Hiroka、Rinoshika Akira、Wang Jin-Jun、Zheng Yan
    • Journal Title

      Ocean Engineering

      Volume: 221 Pages: 108535-108535

    • DOI

      10.1016/j.oceaneng.2020.108535

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Three-dimensional multiscale flow structures behind a wall-mounted short cylinder based on tomographic particle image velocimetry and three-dimensional orthogonal wavelet transform2020

    • Author(s)
      Rinoshika Hiroka、Rinoshika Akira、Wang Jin-Jun
    • Journal Title

      Physical Review E

      Volume: 102 Issue: 3 Pages: 1-17

    • DOI

      10.1103/physreve.102.033101

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 3D orthogonal multi-resolution analysis of flow structures around an improved vehicle external mirror2020

    • Author(s)
      Dong Lin、Rinoshika Akira
    • Journal Title

      Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

      Volume: 235 Issue: 6 Pages: 1617-1628

    • DOI

      10.1177/0954407020975360

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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