Optimum hovering wing planform

Theoretical analysis is used to identify the optimum wing planform of a flapping/revolving wing in hover. This solution is of interest as a benchmark to which hovering wing geometries driven by broader multidisciplinary evolutionary or engineering constraints can be compared. Furthermore, useful ins...

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Bibliographic Details
Published in:Journal of theoretical biology 2016-10, Vol.406, p.187-191
Main Authors: Nabawy, Mostafa R.A., Crowther, William J.
Format: Article
Language:English
Subjects:
Aerodynamics
Animals
Birds - physiology
Elliptic wing
Flapping wings
Flight, Animal - physiology
Hummingbird
Insect flight
Models, Biological
Revolving wings
Wings, Animal - physiology
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Summary:Theoretical analysis is used to identify the optimum wing planform of a flapping/revolving wing in hover. This solution is of interest as a benchmark to which hovering wing geometries driven by broader multidisciplinary evolutionary or engineering constraints can be compared. Furthermore, useful insights into the aerodynamic performance of untwisted hovering wings are delivered. It is shown that profile power is minimised by using an untwisted elliptical planform whereas induced power is minimised by a more highly tapered planform similar to that of a hummingbird. •A theoretical solution for the optimum hovering wing planform is identified.•Aerodynamic performance of untwisted hovering wings is evaluated.•An untwisted elliptical planform minimises profile power.•An untwisted hummingbird-like planform minimises induced power.
ISSN:0022-5193
1095-8541
DOI:10.1016/j.jtbi.2016.06.024