Results 11 to 20 of about 16,699 (209)

Sliding Mode Control of Active Trailing-Edge Flap Based on Adaptive Reaching Law and Minimum Parameter Learning of Neural Networks

open access: yesEnergies, 2020
Theoretical modeling and the sliding mode control (SMC) of an active trailing-edge flap of a wind turbine blade based on the adaptive reaching law are investigated.
Tingrui Liu   +3 more
doaj   +3 more sources

Combined Pitch and Trailing Edge Flap Control for Load Mitigation of Wind Turbines

open access: yesEnergies, 2018
Using active control methods for load mitigation in wind turbines could greatly reduce the cost of per kilowatt hour of wind power. In this work, the combined pitch and trailing edge flap control (CPFC) for load mitigation of wind turbines is ...
Keshan He   +3 more
doaj   +3 more sources

Alleviation of Dynamic Stall Moments by Morphing Flap

open access: yesHangkong gongcheng jinzhan, 2021
Active deflection of trailing edge control surface can reduce the adverse effect of airfoil dynamic stall on aerodynamic characteristics.This study set out to investigate the performance of morphing flap on dynamic stall alleviation.
OUYANG Yan   +3 more
doaj   +1 more source

Aerodynamic Effect of Deflection Angle of Trailing Edge Flap on Vertical Axis Wind Turbine with Different Airfoils

open access: yesShanghai Jiaotong Daxue xuebao, 2022
Low power efficiency is a critical factor that restricts marketization development of the vertical axis wind turbine (VAWT). The proposal of the trailing edge flap can change flow structure on blade surface, so as to improve the aerodynamic performance ...
DAI Mengyi, ZHANG Zhihao, TU Jiahuang, HAN Zhaolong, ZHOU Dai, ZHU Hongbo
doaj   +1 more source

Performance and Effect of Load Mitigation of a Trailing-Edge Flap in a Large-Scale Offshore Wind Turbine

open access: yesJournal of Marine Science and Engineering, 2020
As a result of the large-scale trend of offshore wind turbines, wind shear and turbulent wind conditions cause significant fluctuations of the wind turbine’s torque and thrust, which significantly affect the service life of the wind turbine gearbox
Xin Cai   +3 more
doaj   +1 more source

The Influence of Rotor Adjustment Parameters on the Dynamic Balance of a Scale-Model Rigid Variable Speed Rotor

open access: yesApplied Sciences, 2022
In this paper, the dynamic balance of a rigid variable speed rotor is tested and analyzed. The vibration acceleration is measured by vibration analyzer instrumentations.
Liang Li, Ming Chen, Fang Wang, Anan Xu
doaj   +1 more source

3D Turbulent Boundary Layer Separation Control by Multi-Discharge Plasma Actuator

open access: yesAerospace, 2023
In a subsonic wind tunnel, a three-dimensional separation of a developed turbulent boundary layer was simulated on a swept wing flap model. A multi-discharge plasma actuator operating on the basis of dielectric barrier discharge was used to overcome the ...
Sergey Chernyshev   +4 more
doaj   +1 more source

Active Management of Flap-Edge Trailing Vortices [PDF]

open access: yes4th Flow Control Conference, 2008
The vortex hazard produced by large airliners and increasingly larger airliners entering service, combined with projected rapid increases in the demand for air transportation, is expected to act as a major impediment to increased air traffic capacity.
David Greenblatt   +4 more
openaire   +1 more source

Comparison of the takeoff performance of two wing types for an airplane with short takeoff and landing capability

open access: yesАвіаційно-космічна техніка та технологія, 2023
The subject of study in this article is the effect of mechanization of the trailing edge of the wing, located along 95% of the wing console, on the lift coefficient, drag coefficient, and aerodynamic quality of the wing during takeoff operation for a ...
Leonid Zavorotynskyi, Dmytro Konotop
doaj   +1 more source

Design and Aerodynamic Authority Analysis of ContinuousTrailing-edge Flap for Helicopter Blade

open access: yesHangkong gongcheng jinzhan, 2018
Continuous trailing-edge flap has many advantages over conventional discrete flap in helicopter rotor vibration reduction applications, such as light weight, compact structure and stable airflow. Macro fiber composite is chosen as the actuating material.
Li Yun   +3 more
doaj   +1 more source

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