Blade Twist Effects on Aerodynamic Performance and Noise Reduction in a Multirotor Propeller
Drones, 2023 This paper presents a novel integrated study of the aerodynamic performance and acoustic signature of multirotor propellers with a specific focus on the blade twist angle effect. Experimental measurements and computational fluid dynamic (CFD) simulations
Jianwei Sun +4 more
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Multi-objective Optimization of Horizontal Axis Wind Turbine Arrays: Impact of Spacing Distance on Noise Generation and Power Efficiency [PDF]
Journal of Applied Fluid MechanicsThis work explores the effect of spacing between co-axially positioned Horizontal Axis Wind Turbines (HAWTs) on their aerodynamic behavior and acoustic emissions under uniform inflow conditions. The aerodynamic simulations employ the Actuator Disk Method
A. Amoura +4 more
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Aerodynamic and Aeroacoustic Performance of Airfoils Fitted with Morphing Trailing-edges [PDF]
2018 AIAA/CEAS Aeroacoustics Conference, 2018 Experimental and numerical studies of a simple NACA 0012 airfoil fitted with two different flap profiles were successfully carried out to characterize their aerodynamic and aeroacoustic performance. The airfoil was tested with two flap configurations with different flap camber and a flap deflection angle of = 10.
Kamliya Jawahar, Hasan +2 more
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Analysis of POD and EPOD for Unsteady Flow Field of Wind Turbine Airfoil
Shanghai Jiaotong Daxue xuebao, 2022 The profile flow around the wind turbine airfoil has a significant impact on the overall performance and the noise of a wind turbine. In this paper, a combination method of large eddy simulation (LES) and the solution of Ffowcs Williams and Hawkings (FW ...
SUN Chong, TIAN Tian, ZHU Xiaocheng, DU Zhaohui
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Aeroacoustic and Aerodynamic Performances of an Aerofoil Subjected to Sinusoidal Leading Edges [PDF]
21st AIAA/CEAS Aeroacoustics Conference, 2015 This paper presents the preliminary results on the aeroacoustic and aerodynamic performances of a NACA65-(12)10 aerofoil subjected to 12 sinusoidal leading edges. The serration patterns of these leading edges are formed by cutting into the main body of the aerofoil, instead of extending the leading edges.
Chong, TP +5 more
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A general model for trailing edge serrations simulation on wind turbine airfoils
Theoretical and Applied Mechanics Letters, 2021 Trailing edge serrations (TESs) are capable of noticeably suppressing the turbulent trailing edge noise induced by rotating wind turbine blades and become an integral part of a blade.
Huijing Cao +3 more
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Aerodynamic and aeroacoustic characteristics of a bionic morphing flap
Energy Reports, 2023 Birds adapt to the changing flight conditions by performing intricate feather-movements to manipulate the airflow. The avian wings often undergo seamless transformations at the trailing-edge to achieve camber-reflexes for extended flight envelope.
Md. Zishan Akhter +2 more
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Experimental Study of Airfoil Leading Edge Combs for Turbulence Interaction Noise Reduction
Acoustics, 2020 The interaction of a turbulent flow with the leading edge of a blade is a main noise source mechanism for fans and wind turbines. Motivated by the silent flight of owls, the present paper describes an experimental study performed to explore the noise ...
Thomas Fritz Geyer +2 more
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A Study of Aeroacoustic Performance of a Contra-Rotating Axial Flow Compressor Stage [PDF]
, 2013 The paper reports of an experimental investigation into the aeroacoustic performance of a contra-rotating axial flow compressor stage having a hub-tip ratio of 0.66.
Sharma, P.B. +2 more
core +1 more source
Automotive Aeroacoustic Sound Quality [PDF]
, 2019 Aeroacoustic noise sources are becoming increasingly important in the vehicle environment. Research has suggested that for electric vehicles, the predominant focus in development effort shifts from powertrain noise, to masking noises such as road and ...
Kendrick, Paul, West, Benjamin
core +3 more sources