Results 21 to 30 of about 1,736 (190)

High-Reynolds-number wind turbine blade equipped with root spoilers – Part 1: Unsteady aerodynamic analysis using URANS simulations [PDF]

open access: yesWind Energy Science, 2022
A commercial wind turbine blade equipped with root spoilers is analysed using 2D URANS computational fluid dynamics (CFD) to assess the unsteady impact of passive devices.
T. Potentier   +5 more
doaj   +1 more source

Numerical investigation for the enhancement of the aerodynamic characteristics of an aerofoil by using a gurney flap [PDF]

open access: yes, 2017
Numerical investigation was carried out to determine the effect of a Gurney Flap on NACA 0012 aerofoil performance with emphasis on Unmanned Air Vehicles applications. The study examined different configurations of Gurney Flaps at high Reynolds number of
Al-Mawali, Julanda, Dakka, Sam
core   +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

Actuators for smart applications [PDF]

open access: yes, 2010
Actuator manufacturers are developing promising technologies\ud which meet high requirements in performance, weight and\ud power consumption. Conventionally, actuators are characterized\ud by their displacement and load performance.
Akkerman, Remko   +3 more
core   +2 more sources

Aerodynamic Enhancement of Vertical-Axis Wind Turbines Using Plain and Serrated Gurney Flaps

open access: yesApplied Sciences, 2023
In light of the escalating demand for renewable energy sources, vertical-axis wind turbines have emerged as a pivotal technical solution for addressing the challenge of clean energy supply in residential and urban areas.
Liu Chen   +3 more
doaj   +1 more source

Computational Study of Microflaps with Application to Vibration Reduction in Helicopter Rotors [PDF]

open access: yes, 2011
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90636/1/AIAA-55024-132 ...
Friedmann, Peretz P.   +2 more
core   +1 more source

Parametric slat design study for thick-base airfoils at high Reynolds numbers [PDF]

open access: yesWind Energy Science, 2020
Standard passive aerodynamic flow control devices such as vortex generators and gurney flaps have a working principle that is well understood. They increase the stall angle and the lift below stall and are mainly applied at the inboard part of wind ...
J. Steiner   +4 more
doaj   +1 more source

A comparative assessment of vibration control capabilities of a L-shaped Gurney flap [PDF]

open access: yes, 2016
This work presents the capabilities of a novel L-shaped trailing-edge Gurney flap as a device for vibration reduction. The primary effect of this L-tab is represented by a modification of the reference aerofoil mean line shape through by two counter ...
Bielawa   +4 more
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

Numerical Evaluation of Microflaps for On Blade Control of Noise and Vibration [PDF]

open access: yes, 2011
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90660/1/AIAA-2011-1873-453 ...
Friedmann, Peretz P.   +2 more
core   +1 more source

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