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Computational Modeling of Gurney Flaps and Microtabs by POD Method [PDF]
Energies, 2018 Gurney flaps (GFs) and microtabs (MTs) are two of the most frequently used passive flow control devices on wind turbines. They are small tabs situated close to the airfoil trailing edge and normal to the surface.
Unai Fernandez-Gamiz +2 more
doaj +12 more sources
Performance Improvement of Variable Speed Rotors by Gurney Flaps [PDF]
Aerospace Science and Technology, 2017 Gurney flaps are used for improving the performance of variable speed rotors. An analytical model able to predict helicopter rotor power is first presented, and the flight data of the UH-60A helicopter is used for validation. The predictions of the rotor
Barakos, George N., Dong, Chen, Han, Don
core +5 more sources
CNN-based flow control device modelling on aerodynamic airfoils [PDF]
Scientific Reports, 2022 Wind energy has become an important source of electricity generation, with the aim of achieving a cleaner and more sustainable energy model. However, wind turbine performance improvement is required to compete with conventional energy resources.
Koldo Portal-Porras +4 more
doaj +2 more sources
Gurney Flap Implementation on a DU91W250 Airfoil [PDF]
The 2nd International Research Conference on Sustainable Energy, Engineering, Materials and Environment, 2018 The increasing capability of Wind Turbine (WT) based power generation systems has derived in an increment of the WT rotor diameter, i.e., longer rotor blades.
Aramendia Iradi, Iñigo +6 more
core +6 more sources
Method for calculating rotors with active gurney flaps [PDF]
Journal of Aircraft, 2016 This paper builds on the Helicopter Multi-Block version 2 computational-fluid-dynamics solver of the University of Liverpool and demonstrates the implementation and use of Gurney flaps on wings and rotors.
Barakos, G. N. +2 more
core +3 more sources
Effect of Gurney flap Height and Mounting Position on the Performance of a Centrifugal Fan [PDF]
Journal of Applied Fluid Mechanics, 2022 The effect of Gurney flap height and mounting position on the head coefficient of a centrifugal fan at different Reynolds numbers is investigated experimentally.
M. Suresh, N. Sitaram
doaj +1 more source
Geometric Optimisation of Hinge-less Deployment System for an Active Rotorblade [PDF]
, 2011 The Green Rotorcraft project (part of Clean Sky JTI) is\ud studying the Gurney flap as a demonstrator of a smart adaptive\ud rotorblade. Deployment systems for the Gurney flap need to\ud sustain large centrifugal loads and vibrations while maintaining ...
Akkerman, Remko +4 more
core +18 more sources
Effects of Gurney Flaps on the Performance of a Horizontal Axis Ocean Current Turbine
Journal 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
Energies, 2023 Refinement of the performance of a fully constrained oscillating-foil turbine is carried out via the addition of passive double Gurney flaps. Flaps ranging from hGF=0.005c to 0.075c are added at the trailing edge of the NACA 0015 blade of turbines ...
Benoît Genest, Guy Dumas
doaj +1 more source
Applied Sciences, 2022 Ultra-high-altitude unmanned aerial vehicles have created a high demand for the performance of propellers under low Reynolds numbers, while the efficiency of such propellers by the existing design framework has reached a bottleneck.
Yuan Yao +4 more
doaj +1 more source