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2016 Fiscal Year Research-status Report

生物に学んだ流体関連振動を用いたエナジーハーベスティング

Research Project

Project/Area Number 16K06172
Research InstitutionYamagata University

Principal Investigator

M・A Langthjem  山形大学, 大学院理工学研究科, 准教授 (30344815)

Project Period (FY) 2016-04-01 – 2019-03-31
Keywordsメカトロニックス / fluid-structure
Outline of Annual Research Achievements

Problem (1), Single flag-type energy harvester:
Optimum shape design is being considered, based on a perturbation method-approach applied to Theodoresen's analytical fluid-load model. A fundamental, analytical stability study of a hanging flag in fluid flow is being developed as well.

Problem (2), A system of many interacting flag-type energy harvesters:
A computational model based on an articulated flag model and a discrete vortex flow model has been developed. (In principle, any number of flags is possible; the number is limited only by the computer memory.) The analysis module has been completed. An optimization module (for determining the optimum positions of the individual flags, for maximum power output) is under development.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

Problem (1) "Single flag-type energy harvester" is a little bit delayed due to difficult analytical challenges (but not worse than they will be overcome).

On the other hand, Problem (2) "A system of many interacting energy harvesters" has been advanced a bit further than was expected at this time.

Strategy for Future Research Activity

Basically, the original plan will be followed.

In FY 2017 the theoretical part of Problem (1) will be completed and an experimental verification will be carried out.

The theoretical/numerical part of Problem (2) will be continued.

  • Research Products

    (6 results)

All 2017 2016

All Journal Article (3 results) (of which Acknowledgement Compliant: 3 results,  Peer Reviewed: 1 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Energy harvesting based on bio-inspired fluid-structure interaction2017

    • Author(s)
      M. A. Langthjem
    • Journal Title

      数里解析研究所講究録 (to be published)

      Volume: 0 Pages: 1-7

    • Acknowledgement Compliant
  • [Journal Article] Optimum layout of a large number of interacting piezoelectric flags in axial flow2017

    • Author(s)
      M. A. Langthjem
    • Journal Title

      IUTAM symposium on Dynamics and Topology of Vorticity and Vortices, Extended abstracts (to be published)

      Volume: 0 Pages: 1-2

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] On vortex shedding from a flapping flag2016

    • Author(s)
      M. A. Langthjem
    • Journal Title

      日本流体力学会年会講演アブストラクト集(CD-ROM)

      Volume: 0 Pages: 1-1

    • Acknowledgement Compliant
  • [Presentation] Optimum layout of a large number of interacting piezoelectric flags in axial flow2017

    • Author(s)
      M. A. Langthjem
    • Organizer
      IUTAM symposium on Dynamics and Topology of Vorticity and Vortices
    • Place of Presentation
      Carry-le-Rouet, Marseille, France
    • Year and Date
      2017-06-13 – 2017-06-16
    • Int'l Joint Research
  • [Presentation] Energy harvesting based on bio-inspired fluid-structure interaction2016

    • Author(s)
      M. A. Langthjem
    • Organizer
      RIMS研究集会「非線形波動現象の数理に関する最近の進展」
    • Place of Presentation
      京都大学数理解析研究所(京都府)
    • Year and Date
      2016-10-12 – 2016-10-14
  • [Presentation] On vortex shedding from a flapping flag2016

    • Author(s)
      M. A. Langthjem
    • Organizer
      日本流体力学会年会
    • Place of Presentation
      名古屋工業大学(愛知県)
    • Year and Date
      2016-09-26 – 2016-09-28

URL: 

Published: 2018-01-16  

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