Results 31 to 40 of about 3,507,797 (292)

The leading-edge vortex of yacht sails [PDF]

, 2017
A leading-edge vortex (LEV) can be a robust lift generation mechanism on both the wings of natural fliers and delta wings. A spinnaker-type of sail is a thin wing that promotes the formation of LEVs due to a sharp leading edge.
Arredondo Galeana, Abel, A. Arredondo-Galeana, H. Babinsky, Arredondo-Galeana, A., I.M. Viola, Arredondo-Galeana A., Viola, Ignazio Maria; id_orcid, Babinsky H., Babinsky, H., Babinsky, Holger, Arredondo-Galeana, Abel, Viola I. M., Viola, I.M.   +12 more
core   +1 more source

The leading-edge vortex and quasisteady vortex shedding on an accelerating plate [PDF]

Physics of Fluids, 2010
A computational inquiry focuses on leading-edge vortex (LEV) growth and shedding during acceleration of a two-dimensional flat plate at a fixed 10°–60° angle of attack and low Reynolds number. The plate accelerates from rest with a velocity given by a power of time ranging from 0 to 5.
Chen, Kevin K., Colonius, Tim, Taira, Kunihiko   +2 more
openaire   +2 more sources

Non-linear unsteady aerodynamic model for insect-like flapping wings in the hover. Part 1: Methodology and analysis [PDF]

, 2006
The essence of this two-part paper is the analytical, aerodynamic modelling of insect-like flapping wings in the hover for microair vehicle applications.
Knowles, Kevin, Zbikowski, Rafal, Ansari, Salman A.   +2 more
core   +1 more source

Effect of Wavy Leading Edges on Airfoil Trailing-Edge Bluntness Noise

Aerospace, 2023
Among the several noise-generation mechanisms of airfoil self-noise, trailing-edge bluntness noise is an important noise source, which is caused by the vortex shedding at blunt trailing edges.
Yudi Xing, Weijie Chen, Xingyu Wang, Fan Tong, Weiyang Qiao   +4 more
doaj   +1 more source

Influence of Area Distribution Along the Span Direction on Flapping Wing Aerodynamics in Hover Based on Numerical Modeling Analysis

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This study performed a numerical investigation to explore the effect of span-wise area distribution on flapping wing aerodynamics in hovering configuration using an in-house developed flow solver.
Guilin Wu, Shuanghou Deng, Qingxi Li
doaj   +1 more source

Reduced dimension modeling of leading edge turbulent interaction noise [PDF]

, 2014
A computational aeroacoustics approach is used to model the effects of real airfoil geometry on leading edge turbulent interaction noise for symmetric airfoils at zero angle of attack.
Zhang, Xin, Node-Langlois, Thomas, Thomas Node-Langlois, James R. Gill, Phillip Joseph, Gill, James, Xin Zhang, Joseph, Phillip F., Joseph, Phillip   +8 more
core   +1 more source

Numerical Investigation of the Aerodynamic Properties of a Flying Wing Configuration [PDF]

, 2012
The numerical investigations of a generic UCAV configuration are presented. These investigations are part of the DLR internal project UCAV-2010. Compressible speed conditions are considered and presented.
Andreas Schutte, Martin Rein, Rein, Martin, Kerstin Huber, Huber, Kerstin Claudie, Schütte, Andreas   +5 more
core   +1 more source

Numerical investigation on characteristics of separation vortices between blades of two-dimensional cascade

Nihon Kikai Gakkai ronbunshu
In this study, LES calculations by OpenFOAM were performed using five blade models with different blade thicknesses (original, quarter, half, 3-quarters, and filled) to investigate the characteristics of separated and reattaching flow between blades of ...
Kosuke SETO, Koji IWANO, Yasumasa ITO, Yasuhiko SAKAI, Sho KOSAKA, Kenji YOSHIDA   +5 more
doaj   +1 more source

A species-transport model for circulation in a leading-edge vortex

Advances in Aerodynamics, 2022
In this study, we propose a model to predict circulation growth along the span of a rotating wing, in which circulation transport is represented as species transport.
Clara Giner-Morency, Jaime G. Wong
doaj   +1 more source

The impact of transport across the polar vortex edge on Match ozone loss estimates [PDF]

, 2008
The Match method for the quantification of polar chemical ozone loss is investigated mainly with respect to the impact of the transport of air masses across the vortex edge.
R. Müller, Müller, Rolf, Möbius, Tanja, Müller, R., Grooß, J.-U., J.-U. Grooß, Steinhorst, Hildegard-Maria, Konopka, P., Engel, Andreas, H.-M. Steinhorst, Volk, C.-Michael, Volk, C. M., Konopka, Paul, Engel, A., A. Engel, C. M. Volk, Möbius, T., Steinhorst, H.-M., Grooß, Jens-Uwe, P. Konopka, T. Möbius   +20 more
core   +2 more sources