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Leading-edge vortex development on a pitching flat plate with multiple leading edge geometries [PDF]
Experimental Thermal and Fluid Science, 2018 Abstract This article investigates the dynamic stall of a pitching flat plate in order to facilitate lift control in applications such as flapping wings and micro-aerial vehicles. Constant-pitch-rate rotation, similar to ramp-and-hold, of a flat plate was investigated in an open-jet wind tunnel using embedded surface pressure sensors to assess vortex
Leknys, R. +3 more
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Leading-Edge Vortex Lifts Swifts
Science, 2004The current understanding of how birds fly must be revised, because birds use their hand-wings in an unconventional way to generate lift and drag. Physical models of a common swift wing in gliding posture with a 60° sweep of the sharp hand-wing leading edge were tested in a water tunnel.
Videler, J. J. +2 more
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Vortex–leading-edge interaction
Journal of Fluid Mechanics, 1982Visualization of successive vortices impinging upon the leading edge of a wedge reveals patterns of deformation of each incident vortex; for certain offsets of the edge with respect to the incident vortex there is pronounced vortex shedding from the leading edge, whereby the shed vortex has a vorticity orientation opposite to that of the incident ...
Samir Ziada, Donald Rockwell
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Leading-edge vortex stability in insect wings
Physical Review E, 2005An analytical study is presented to determine if the persistency of the leading-edge vortex in an insect wing can be explained as the balance between vorticity generation at the leading edge and advection plus effects of vorticity stretching and tilting by the flow along the wing span.
F O, Minotti, E, Speranza
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Leading-Edge-Vortex Augmentation in Compressible Flow
Journal of Aircraft, 1975Leading-edge-vortex enhancement by blowing has been explored experimentally. Conceptual half-span windtunnel tests were conducted on a wing-body-tail configuration with a cambered and twisted wing with leadingedge flaps. Blowing vortex augmentation is shown to be effective in improving both lift and drag due to lift at high angle of attack for the Mach
R. BRADLEY, P. WHITTEN, W. WRAY
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Control of Leading-Edge Vortex Breakdown by Trailing Edge Injection
Journal of Aircraft, 1999The goal of this research is the control of the vortex breakdown locations over sharp-edged, slender, delta wings at high angles of attack. Water tunnel tests of a 75-deg delta wing examined symmetric and asymmetric trailing-edge jet injection as a method to control and delay the leading-edge vortex breakdown locations. These tests were accomplished at
Anthony Mitchell +3 more
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Multiple inviscid solutions for the flow in a leading-edge vortex
AIAA Journal, 2000To analyze the flowfield inside the vortex formed at the leading edge of a highly swept wing at an angle of attack, conical similarity solutions of the compressible Euler equations have been obtained and compared to incompressible conical similarity flow solutions.
van Noordenburg, M.B.H. +1 more
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Entrainment effect of a leading-edge vortex
AIAA Journal, 1987Etude experimentale des caracteristiques de l'ecoulement dans un tourbillon de bord d'attaque.
N. G. Verhaagen, A.C.H. Kruisbrink
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Simulation of leading-edge vortex flows
Theoretical and Computational Fluid Dynamics, 1990zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hsu, C.-H., Liu, C. H.
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A multi‐vortex model of leading‐edge vortex flows
International Journal for Numerical Methods in Fluids, 1983AbstractA multi‐vortex model of the vortex sheets shed from the sharp leading edges of slender wings is considered. The method, which is developed within the framework of slender‐body theory, is designed to deal with those situations in which more than one centre of rotation is formed on the wing, for example on a slender wing with lengthwise camber or
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