Results 201 to 210 of about 4,278 (263)

Aerodynamic Instability Mechanisms of Iced Eight-Bundled Conductors: Frequency-Domain Analysis and Stability Assessment via Wind Tunnel-CFD Synergy. [PDF]

Sensors (Basel)
Zhong B, Qiao M, Cai M, Hu M.
europepmc   +1 more source

Unlocking Microbial Dark Matter: A Comprehensive Review of Isolation Technologies from Traditional Culturing to Single-Cell Technologies. [PDF]

Microorganisms
Sun X, Zhang X, Zhang J.
europepmc   +1 more source

Enhancing start-up and torque in Darrieus VAWTs through a novel plain gurney flap design. [PDF]

Sci Rep
Eltayeb W, Somlal J, SirElkhatim M, Yedukondalu G, Srinath A.   +4 more
europepmc   +1 more source

Study of sand particle motion characteristics and distribution patterns in a helical-blade multiphase pump. [PDF]

Sci Rep
Zhao X, Shi G, Cui Z, Zhang Y.
europepmc   +1 more source

Large dynamic pitching for lift enhancement during the pull-out manoeuvre of raptors. [PDF]

Sci Rep
Gowree ER, Tome JD, Escamilla AD, Bauerheim M.   +3 more
europepmc   +1 more source

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Connection between leading-edge sweep, vortex lift, and vortex strength for delta wings

Journal of Aircraft, 1990
An effort is made to clarify the effect of leading-edge sweep on the vortex lift and leading-edge vortex strength of a slender wing; while it is often assumed that increasing sweep enhances vortex lift and strength, the opposite is the case. The suction analogy is used in association with numerical and experimental data to derive simple formulas ...
Michael J. Hemsch, James M. Luckring
exaly   +2 more sources

Remarks on Nonlinear Lift and Vortex Separation

Journal of the Aeronautical Sciences, 1954
exaly   +2 more sources

Lift and the Leading Edge Vortex

50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2012
AbstractFlapping wings often feature a leading-edge vortex (LEV) that is thought to enhance the lift generated by the wing. Here the lift on a wing featuring a leading-edge vortex is considered by performing experiments on a translating flat-plate aerofoil that is accelerated from rest in a water towing tank at a fixed angle of attack of 15°.
Pitt Ford, C. W., Babinsky, H.
openaire   +2 more sources

Leading-Edge Vortex Lifts Swifts

Science, 2004
The 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., Stamhuis, E. J., Povel, G. D. E.   +2 more
openaire   +2 more sources