Hummingbird wing efficacy depends on aspect ratio and compares with helicopter rotors
نویسندگان
چکیده
منابع مشابه
Hummingbird wing efficacy depends on aspect ratio and compares with helicopter rotors.
Hummingbirds are the only birds that can sustain hovering. This unique flight behaviour comes, however, at high energetic cost. Based on helicopter and aeroplane design theory, we expect that hummingbird wing aspect ratio (AR), which ranges from about 3.0 to 4.5, determines aerodynamic efficacy. Previous quasi-steady experiments with a wing spinner set-up provide no support for this prediction....
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ژورنال
عنوان ژورنال: Journal of The Royal Society Interface
سال: 2014
ISSN: 1742-5689,1742-5662
DOI: 10.1098/rsif.2014.0585