Results 31 to 40 of about 5,063 (265)
Formation of the leading-edge vortex and spanwise flow on an insect-like flapping-wing throughout a flapping half cycle [PDF]
, 2013 This paper presents an experimental investigation of the evolution of the leading-edge vortex and spanwise flow generated by an insect-like flapping-wing at a Reynolds number relevant to flapping-wing micro air vehicles (FMAVs) (Re = ~15,000 ...
Knowles, Kevin, Phillips, Nathan
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Animalopters - towards a new dimension of flight mechanics [PDF]
Transport, 2002 Recently, it has been recognised that flapping wing propulsion can be more efficient than conventional propellers if applied to very small-scale vehicles, so-called MAVs (micro air vehicles).
J. A. Goszczynski +3 more
doaj +3 more sources
Footprints of a flapping wing [PDF]
Journal of Fluid Mechanics, 2017 Birds have to flap their wings to generate the needed thrust force, which powers them through the air. But how exactly do flapping wings create such force, and at what amplitude and frequency should they operate? These questions have been asked by many researchers. It turns out that much of the secret is hidden in the wake left behind the flapping wing.
openaire +2 more sources
The Effect of Spanwise Folding on the Aerodynamic Performance of a Passively Deformed Flapping Wing
BiomimeticsThe wings of birds exhibit multi-degree-of-freedom motions during flight. Among them, the flapping folding motion and chordwise passive deformation of the wings are prominent features of large birds in flight, contributing to their exceptional flight ...
Ming Qi +3 more
doaj +1 more source
Frontiers in Bioengineering and Biotechnology, 2022 The flying agility demonstrated by dragonflies is accomplished by means of complex aerodynamic forces produced by flapping their four wings arranged in a tandem configuration.
Erfan Salami +5 more
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A Robotic Mechanism to Validate the Origin of Avian Flight
IEEE Access, 2018 A fundamental way to quantify the origin of flight is the implementation of experiments on the running bipedal with/without flapping wings in order to capture the kinematics of a bird quantitatively. To this purpose, the measured parameters should be the
Yaser Saffar Talori, Jing-Shan Zhao
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Fabrication, aerodynamic measurement and performance evaluation of corrugated flapping wings
, 2021 This paper deals with the fabrication, aerodynamic measurement, and performance evaluation of the corrugated wing patterns on a flapping wing micro air vehicle (FWMAV). The corrugated wing pattern is generally seen in insects.
Yang, Lung-Jieh;Kapri, Niroj;Waikhom, Reshmi;Unnam, Neethish Kumar
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Advanced Intelligent SystemsInsects flap their wings through a highly specialized musculoskeletal system that allows the wings to rotate about three degrees of freedom. Consequently, the wingtip trajectory is adjustable in 3D, and accompanied with appropriate wing feathering (wing ...
Leeor Mordoch +3 more
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The effect of passive deformation of dragonfly wing on aerodynamic characteristics
Nihon Kikai Gakkai ronbunshu, 2016 Dragonflies can perform both of gliding and flapping flight and have high maneuverability in spite of small-size. The aim of this study is to develop Micro Air Vehicle (MAV) based on the flight of dragonfly.
Hisayoshi NAKA, Hiromu HASHIMOTO
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Aspect Ratio Effects on the Aerodynamic Performance of a Biomimetic Hummingbird Wing in Flapping
Biomimetics, 2023 Hummingbirds are flapping winged creatures with unique flight mechanisms. Their flight pattern is more similar to insects than other birds. Because their flight pattern provides a large lift force at a very small scale, hummingbirds can remain hovering ...
Yilong Min +3 more
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