Results 31 to 40 of about 89,370 (155)

Effects of Gurney Flaps on the Performance of a Horizontal Axis Ocean Current Turbine

open access: yesJournal of Marine Science and Engineering, 2023
Gurney flaps can enhance the hydrodynamic efficiency of airfoils, and they are currently used in several applications, including racing cars and wind turbines.
Zhaoyong Mao   +3 more
doaj   +1 more source

Characterization of the Outer Uranian Rings in the Visual and Near‐IR Using Keck, JWST, and HST Observations

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract We present observations of the Uranian outer ring system at near‐infrared and visible wavelengths. Observations with the Keck Telescope were taken in July‐August 2007 at 2.12 and 1.63 μm, when the ring plane was almost edge‐on (ring opening angle B=0.62 $B=0.62$–0.24° ${}^{\circ}$). These data showed, for the first time, the μ ring at infrared
Imke de Pater   +7 more
wiley   +1 more source

Design of a 3.4‐MW wind turbine with integrated plasma actuator‐based load control

open access: yesWind Energy, 2022
Historically, cost reduction in wind energy has been accomplished by increasing hub heights and rotor diameters to capture more energy per turbine. The growth in rotor and turbine costs with increasing turbine sizes is also driven by the additional ...
Mayank Chetan   +4 more
doaj   +1 more source

Aerodynamic performance and wake development of NACA 0018 airfoil with serrated gurney flaps

open access: yesFrontiers in Energy Research
Improving the aerodynamic performance of the airfoil is important for optimising the rotor efficiency of the vertical axis wind turbines. As a simple passive control method, the Gurney flap is widely used to improve the aerodynamic performance of ...
Zhehui Zheng, Liu Chen
doaj   +1 more source

Aerodynamic Profiling and Performance Optimisation of a GT3 Racing Vehicle Using CFD and Component‐Level Testing

open access: yesJournal of Engineering, Volume 2026, Issue 1, 2026.
This study presents a cost‐conscious GT3 aerodynamic‐optimisation workflow combining 3D scanning, full‐vehicle GPU‐accelerated lattice Boltzmann method simulations, and component wind‐tunnel tests. Its contribution is a transparent scan‐to‐decision process rather than a new LBM formulation.
Jode Fourie   +5 more
wiley   +1 more source

Decision‐making for wāhine Māori facing breast cancer surgery: a qualitative study

open access: yesKōtuitui: New Zealand Journal of Social Sciences Online, Volume 20, Issue 4, Page 837-849, December 2025.
ABSTRACT Wāhine Māori (women/females) are disproportionally affected by breast cancer in Aotearoa New Zealand. Following a breast cancer diagnosis, wāhine must make important surgical decisions while navigating a Westernised health system that can be dismissive of Māori views of health and tikanga (customary practices).
Vanessa Burrett   +6 more
wiley   +1 more source

Effect of Gurney Flaps on Non-Planar Wings at Low Reynolds Number

open access: yesAerospace
The effect of spanwise wing non-planarity, employed in conjunction with a Gurney flap, is presented. Testing was undertaken in a low-speed wind tunnel using a rectangular wing with an aspect ratio of three. The outer one-third of the wing was non-planar,
Lance W. Traub
doaj   +1 more source

Effect of Gurney Flap Geometry on a S809 Airfoil

open access: yesInternational Journal of Aerospace Engineering, 2019
In this paper, the effect of Gurney flap shapes on wind turbine blade airfoil S809 has been studied by numerical simulation. First, the O-type grid is used in the numerical simulation. By comparing with experimental data, such as the lift force, the drag
Li-Shu Hao, Yong-Wei Gao
doaj   +1 more source

Aerodynamics and aeroacoustics of flap side-edges [PDF]

open access: yes, 2008
An experimental and computational investigation was carried out to determine the aerodynamics and aeroacoustics of a flap side-edge. A porous side-edge treatment was applied to the flap side-edge in an attempt to reduce airframe noise. Measurements taken
Angland, David
core   +1 more source

Effect of Gurney Flap Configuration on the Performance of a Centrifugal Fan

open access: yesJournal of Applied Fluid Mechanics, 2019
The present investigation is conducted to study the effect of Gurney flap configuration on the performance of a centrifugal fan at different Reynolds numbers.
M. Suresh, N. Sitaram
doaj   +2 more sources

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