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Science 18 June 1999: Vol. 284. no. 5422, pp. 1954 - 1960 DOI: 10.1126/science.284.5422.1954
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Research Articles
Wing Rotation and the Aerodynamic Basis of Insect Flight
Michael H. Dickinson,
1*
Fritz-Olaf Lehmann,
2
Sanjay P. Sane
1
The enhanced aerodynamic performance of insects results from an
interaction of three distinct yet interactive mechanisms: delayed
stall, rotational circulation, and wake capture. Delayed stall
functions during the translational portions of the stroke, when the
wings sweep through the air with a large angle of attack. In contrast,
rotational circulation and wake capture generate aerodynamic forces
during stroke reversals, when the wings rapidly rotate and change
direction. In addition to contributing to the lift required to keep an
insect aloft, these two rotational mechanisms provide a potent means by
which the animal can modulate the direction and magnitude of flight
forces during steering maneuvers. A comprehensive theory incorporating
both translational and rotational mechanisms may explain the diverse
patterns of wing motion displayed by different species of insects.
1 Department of Integrative Biology, University
of California, Berkeley, CA 94720, USA.
2 Theodor-Boveri-Institute, Department of Behavioral
Physiology and Sociobiological Zoology, University of Würzburg am
Hubland, 97074 Würzburg, Germany.
*
To whom correspondence should be addressed. E-mail:
flymanmd{at}socrates.berkeley.edu
Read the Full Text
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