Results 1 to 10 of about 3,350,276 (277)
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]
Biol Lett, 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.
Muijres FT, Johansson LC, Hedenström A.
europepmc +5 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 +9 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
Pulsed Blowing Interacting with a Leading-Edge Vortex
Aerospace, 2020 Manipulation of vortex instabilities for aerodynamic performance increase is of great interest in numerous aeronautical applications. With increasing angle of attack, the leading-edge vortex of a semi-slender delta wing becomes unsteady and eventually ...
Andrei Buzica, Christian Breitsamter
doaj +3 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
doaj +3 more sources
Leading-Edge Vortex Characteristics of Low-Aspect-Ratio Sweptback Plates at Low Reynolds Number
Applied Sciences, 2021 A sweptback angle can directly regulate a leading-edge vortex on various aerodynamic devices as well as on the wings of biological flyers, but the effect of a sweptback angle has not yet been sufficiently investigated.
Jong-Seob Han, Christian Breitsamter
doaj +3 more sources
Petiolate wings: effects on the leading-edge vortex in flapping flight. [PDF]
Interface Focus, 2017 Phillips N, Knowles K, Bomphrey RJ.
europepmc +2 more sources
The fish tail motion forms an attached leading edge vortex. [PDF]
Proc Biol Sci, 2013 Borazjani I, Daghooghi M.
europepmc +2 more sources
The role of the leading edge vortex in lift augmentation of steadily revolving wings: a change in perspective. [PDF]
J R Soc Interface, 2017 Nabawy MRA, Crowther WJ.
europepmc +2 more sources