Results 1 to 10 of about 1,929,704 (249)
Bio-Inspired Aerodynamic Noise Control: A Bibliographic Review
Applied Sciences, 2019 It is well-known that many species of owl have the unique ability to fly silently, which can be attributed to their distinctive and special feather adaptations.
Yong Wang +4 more
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Analysis and Evaluation of Aerodynamic Noise Characteristics of Toroidal Propeller
DronesToroidal propellers, a new type of drone propellers capable of significantly reducing noise, offer new possibilities for future low-altitude flying platforms.
Wei Wei +5 more
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Engineering Applications of Computational Fluid Mechanics, 2023 It is noteworthy to explore potential measures for further reducing the aerodynamic drag and noise of high-speed pantographs. This paper proposes a method of introducing spanwise waviness into the upper and lower arms.
Deng Qin, Tian Li, Jiye Zhang, Ning Zhou
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Applied Sciences, 2019 The high-speed-train pantograph is a complex structure that consists of different rod-shaped and rectangular surfaces. Flow phenomena around the pantograph are complicated and can cause a large proportion of aerodynamic noise, which is one of the main ...
Yongfang Yao +4 more
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On the feasibility of a component-based approach to predict aerodynamic noise from high-speed train bogies [PDF]
Applied Acoustics, 2023 At speeds above 300 km/h, aerodynamic noise becomes a significant source of railway noise. In a high-speed train, the bogie area is one of the most important aerodynamic noise sources.
Eduardo Latorre Iglesias +1 more
exaly +2 more sources
Step-by-Step Numerical Prediction of Aerodynamic Noise Generated by High Speed Trains
Chinese Journal of Mechanical Engineering, 2022 In this paper, the unsteady flow around a high-speed train is numerically simulated by detached eddy simulation method (DES), and the far-field noise is predicted using the Ffowcs Williams-Hawkings (FW-H) acoustic model.
Tian Li +3 more
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Aerodynamic Noise Simulation of a Super-High-Rise Building Facade with Shark-Like Grooved Skin [PDF]
BiomimeticsThe wind-driven aerodynamic noise of super-high-rise building facades not only affects the experience of use inside the building but also reduces the life cycle of building facade materials to some extent.
Xueqiang Wang +2 more
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Aerodynamic Noise Simulation and Quadrupole Noise Problem of 600km/h High-Speed Train
IEEE Access, 2019 The quadrupole aerodynamic noise is a difficult problem in numerical simulation of the aerodynamic noise. The Kirchhoff-Ffowcs Williams and Hawkings (K-FWH) equation method and the three-dimensional compressible Large Eddy Simulation (LES) method are ...
Xiaoming Tan +4 more
doaj +3 more sources
International Journal of Aerospace Engineering, 2019 Aiming at the problem of excessive propeller noise in a new type of electric aircraft, in order to ensure the propeller aerodynamic characteristics simultaneously, a noise reduction method for improving the shape of the blade along the spanwise is ...
Yuhang Wu +5 more
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Reduction of aerodynamic noise of single-inlet centrifugal fan with inclined volute tongue
Measurement + Control, 2020 The effect of inclined volute tongue on the aerodynamic noise and performance of a centrifugal fan was investigated by experimental test in this article.
Wenyue Hao +7 more
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