A Study on the Passive Pitching and Lift Generation in Crane-Fly's Flight(Fluids Engineering)

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  • ISHIHARA Daisuke
    Department of Mechanical Information Science and Technology, Kyushu Institute of Technology
  • YAMASHITA Yu
    九州工業大学大学院情報システム専攻
  • HORIE Tomoyoshi
    Department of Mechanical Information Science and Technology, Kyushu Institute of Technology
  • NIHO Tomoya
    Department of Mechanical Information Science and Technology, Kyushu Institute of Technology

Bibliographic Information

Other Title
  • ガガンボの飛行における受動的ピッチング運動と揚力発生に関する研究(流体工学,流体機械)
  • ガガンボの飛行における受動的ピッチング運動と揚力発生に関する研究
  • ガガンボ ノ ヒコウ ニ オケル ジュドウテキ ピッチング ウンドウ ト ヨウリョク ハッセイ ニ カンスル ケンキュウ
Published
2010
Resource Type
journal article
DOI
  • 10.1299/kikaib.76.764_601
Publisher
The Japan Society of Mechanical Engineers

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Description

In this study, we evaluated the lift force generated by the crane-fly's flapping wing with the passive pitching using the dynamically scaled model. Since the wing and the surrounding fluid interact with each other, the dynamic similarity between the model and actual crane-fly flights was measured using not only the Reynolds and Strouhal numbers but also the mass and Cauchy numbers. Although there existed the difference between the mass number due to the constant acceleration of the gravity, but the lift coefficient simulated by our model indicated that the flapping wing with the passive pitching produces the enough lift force to support the crane-fly's weight.

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