Results 11 to 20 of about 7,443 (257)
The leading-edge vortex of swift wing-shaped delta wings [PDF]
Royal Society Open Science, 2017 Recent investigations on the aerodynamics of natural fliers have illuminated the significance of the leading-edge vortex (LEV) for lift generation in a variety of flight conditions.
Rowan Eveline Muir +2 more
doaj +5 more sources
Leading edge vortex in a slow-flying passerine [PDF]
Biology Letters, 2012 Most hovering animals, such as insects and hummingbirds, enhance lift by producing leading edge vortices (LEVs) and by using both the downstroke and upstroke for lift production. By contrast, most hovering passerine birds primarily use the downstroke to generate lift.
Florian T Muijres +2 more
exaly +5 more sources
Energies, 2023 The purpose of this paper is to assess the influence of a novel type of vortex creation device called the leading-edge vortex controller (LEVCON) on the aerodynamic characteristics of a fighter jet.
Łukasz Malicki +2 more
doaj +3 more sources
The leading-edge vortex of yacht sails [PDF]
Ocean Engineering, 2018 In the present work we experimentally verify, for the first time, that a stable Leading-Edge Vortex (LEV) can be formed on an asymmetric spinnaker, which is a high-lift sail used by yachts to sail downwind. We tested a rigid sail in isolation in a water flume at a Reynolds number of ca. 104.
Abel Arredondo-Galeana +1 more
exaly +6 more sources
Sectional Leading Edge Vortex Lift and Drag Coefficients of Autorotating Samaras
Aerospace, 2023 Autorotating samaras such as Sycamore seeds are capable of descending at exceptionally slow speeds and the secret behind this characteristic is attributed to a flow mechanism known as the leading edge vortex (LEV).
Byung Kwon Jung, Djamel Rezgui
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Highly deformable flapping membrane wings suppress the leading edge vortex in hover to perform better [PDF]
Proceedings of the National Academy of Sciences of the United States of AmericaAlexander Gehrke +2 more
exaly +2 more sources
The fish tail motion forms an attached leading edge vortex [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2013 Iman Borazjani, Mohsen Daghooghi
exaly +2 more sources
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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