Is a Two-dimensional Butterfly Able to Fly by Symmetric Flapping?

• Iima Makoto

  Research Institute for Electronic Science, Hokkaido University, N12 W6, Kita-ku, Sapporo 060-0812

• Yanagita Tatsuo

  Research Institute for Electronic Science, Hokkaido University, N12 W6, Kita-ku, Sapporo 060-0812

抄録

We consider whether two rigid plates (on a hinge) swinging completely symmetrically with respect to the up and down directions can produce enough lift for flight. By simulating a simple flapping motion in two-dimensional space using a discrete vortex method, we found a new type of symmetry-breaking mechanism that allows for the generation of sufficient lift to realize steady-flapping flight. The most important factor in determining the behavior of the model is the nature of the flow following the second downstroke, in which the wing produces significant lift through its interaction with the separation vortices.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 70 (1), 5-8, 2001

  一般社団法人 日本物理学会

キーワード

• fluid dynamics
• flapping flight
• symmetry-breaking
• separation vortex
• discrete vortex method

詳細情報

• CRID: 1390001204179932928
• NII論文ID: 210000103520
• NII論文ID: 110001971866
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.70.5
• BIBCODE: 2001JPSJ...70....5I
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 5649863
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5649863
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.70.5
• 本文言語コード: en
• データソース種別:
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