Results 1 to 10 of about 189,153 (303)
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
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Leading-edge vortex dynamics on plunging airfoils and wings [PDF]
Journal of Fluid Mechanics, 2022 The vortex dynamics of leading-edge vortices on plunging high-aspect-ratio (AR = 10) wings and airfoils were investigated by means of volumetric velocity measurements, numerical simulations and stability analysis to understand the deformation of the leading-edge vortex filament and spanwise instabilities.
O. Son +5 more
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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.
Arredondo-Galeana, Abel +1 more
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Passing-over leading-edge vortex: The thrust booster in heaving airfoil
AIP Advances, 2019 The thrust generated by heaving airfoil in incompressible flow is studied both numerically and theoretically. It is found that the behaviors of leading-edge vortex (LEV) under different airfoil’s transverse velocities have an important influence on the ...
An-Kang Gao +3 more
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Leading edge vortex dynamics [PDF]
, 2015 Leading edge vortices can create high local pressures which in some situations may be advantageous but in others may cause damage. This paper looks at three wind engineering situations: windborne debris, roof suctions on a low-rise building and pressures near the luff of a downwind sail, where the behaviour of the leading edge vortex is significant. In
Peter J, Richards, Viola, Ignazio Maria
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Vortex-Sheet Representation of Leading-Edge Vortex Shedding from Finite Wings
Journal of Aircraft, 2019 A characteristic feature of flows past many oscillating airfoils and wings is the leading-edge vortex (LEV).
Yoshikazu Hirato +3 more
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Numerical simulation of unsteady flows over a slow-flying bat
Theoretical and Applied Mechanics Letters, 2015 This letter describes numerical simulation of the unsteady flow over a slow-flying bat by using the immersed boundary method based on the measured bat wing geometry and kinematics. The main vortical structures around the bat flapping wings are identified,
Shizhao Wang +3 more
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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
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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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On the maintenance of an attached leading-edge vortex via model bird alula [PDF]
Journal of Fluid Mechanics, 2020 Researchers have hypothesized that the post-stall lift benefit of bird’s alular feathers, or alula, stems from the maintenance of an attached leading-edge vortex (LEV) over their thin-profiled, outer hand wing. Here, we investigate the connection between
Thomas Linehan, K. Mohseni
semanticscholar +1 more source