Results 11 to 20 of about 3,350,276 (277)
Journal of Marine Science and Engineering, 2019 To improve the energy extraction performance of the oscillating hydrofoil, the lift force that acts on the oscillating hydrofoil is analyzed. The pressure difference between the oscillating hydrofoil‘s opposing surfaces is dominant to generate the ...
Jianan Xu +3 more
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A new method for predicting the vortex induced aerodynamic characteristics of a body of revolution [PDF]
, 1995 The problem of mathematically modelling the symmetric vortex pair formed on the lee side of a body of revolution at moderate incidence to the freestream direction is addressed with a view to predicting its aerodynamic characteristics.
Smith, Howard
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Blunt leading-edge effect on spanwise-varying leading-edge contours of an UCAV configuration
Journal of Fluid Science and Technology, 2023 The vortex system on the SACCON model is studied under low Reynolds number by using the flow visualization technique and the surface pressure testing measurement in a low-speed water channel and a wind tunnel, respectively.
Yu-Hsin CHEN +3 more
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The essence of generating vortex-within-a-vortex structures behind forked caudal fins
AIP Advances, 2022 This work focuses on vortex-within-a-vortex (VV) structures behind three different shapes of forked caudal fin with a heaving-pitching motion. The results show that the synchronization of trailing-edge vortex separation and the shedding of the leading ...
Zhongying Xiong
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Numerical model and hydrodynamic performance of tuna finlets
Theoretical and Applied Mechanics Letters, 2022 Finlets, a series of small individual triangular fins located along the dorsal and ventral midlines of the body, are remarkable specializations of tuna and other scombrid fishes capable of high-speed swimming.
Jun-Duo Zhang, Wei-Xi Huang
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The Aerodynamic Effect of an Alula-like Vortex Generator on a Revolving Wing
Biomimetics, 2022 An alula is a small structure of feathers that prevents birds from stalling. In this study, the aerodynamic effect of an alula-like vortex generator (alula-VG) on a revolving wing was investigated using the PIV technique in a water tank. The alula-VG was
Ping-Han Chung +2 more
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Aerodynamic performance of dragonfly wing model that starts impulsively: how vortex motion works
Journal of Fluid Science and Technology, 2023 The cross-section of dragonfly wings has corrugated structures. In particular, the leading-edge side of the wing consists of V-shaped structures. According to previous studies, a corrugated wing may exhibit high aerodynamic performance at low Reynolds ...
Yusuke FUJITA, Makoto IIMA
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Manipulation of Leading-Edge Vortex Flow [PDF]
Aerospace, 2020 At very high angles of attack, the leading-edge vortex of a semi-slender delta wing becomes unsteady and collapses, endangering the flight stability. Active flow control by pulsed blowing stabilizes the vortex system, enlarging the flight envelope for such wing configurations.
Andrei Buzica, Christian Breitsamter
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Application of digital particle image velocimetry to insect aerodynamics: measurement of the leading-edge vortex and near wake of a Hawkmoth [PDF]
, 2007 Some insects use leading-edge vortices to generate high lift forces, as has been inferred from qualitative smoke visualisations of the flow around their wings.
Taylor, Graham K. +3 more
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Applied Sciences, 2022 The performance and efficiency of a centrifugal compressor are usually affected by the highly complex 3-dimensional flow structures which develop in the flow field of the compressor.
Seongbin Hong +2 more
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