Results 11 to 20 of about 21,854 (248)
IEEE Access, 2018 The acquisition of aeroacoustics signals of wind turbines is of great significance in environmental noise assessment and fault monitoring of blades. The single acoustic sensor is simpler and more flexible than the acoustic sensors array but it lacks ...
Ya'nan Zhang, Shengbo Qi, Lin Zhou
doaj +2 more sources
Automotive aeroacoustics: An overview [PDF]
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2017 Vehicle aeroacoustic performance has a major influence on customer perception and also has importance for safety and comfort. Wind noise performance was once differentiated by the quality of sealing. Today, achieving competitive wind noise performance also depends on minimising aeroacoustic noise sources generated by the vehicle form, and on ...
Oettle, Nicholas, Sims-Williams, David
openaire +3 more sources
Integrated Evaluation of the Aeroacoustics and Psychoacoustics of a Single Propeller. [PDF]
Int J Environ Res Public Health, 2023 Aeroacoustic noise in multiple rotor drones has been increasingly recognized as a crucial issue, while noise reduction is normally associated with a trade-off between aerodynamic performance and sound suppression as well as sound quality improvement ...
Sun J, Yonezawa K, Shima E, Liu H.
europepmc +2 more sources
Hermite regularization of the Lattice Boltzmann Method for open source computational aeroacoustics [PDF]
Journal of the Acoustical Society of America, 2017 The lattice Boltzmann method (LBM) is emerging as a powerful engineering tool for aeroacoustic computations. However, the LBM has been shown to present accuracy and stability issues in the medium-low Mach number range, that is of interest for ...
Bonadonna, Costanza +3 more
core +3 more sources
An investigation of rotor aeroacoustics with unsteady motions and uncertainty factors
Journal of Fluid Mechanics, 2023 The aeroacoustic characteristics of flying vehicles with pitch-fixed rotors differ from traditional helicopters with pitch-controlled rotor blades.
Siyang Zhong +5 more
semanticscholar +1 more source
Towards the definition of a benchmark for low Reynolds number propeller aeroacoustics
Journal of Physics: Conference Series, 2021 Experimental and numerical results of a propeller of 0.3 m diameter operated in quiescent standard ambient conditions at 5000 RPM and axial velocity ranging from 0 to 20 m/s and advance ratio ranging from 0 to 0.8 are presented as a preliminary step ...
D. Casalino +4 more
semanticscholar +1 more source
Helmholtz's decomposition for compressible flows and its application to computational aeroacoustics. [PDF]
SN Partial Differ Equ Appl, 2020 The Helmholtz decomposition, a fundamental theorem in vector analysis, separates a given vector field into an irrotational (longitudinal, compressible) and a solenoidal (transverse, vortical) part.
Schoder S, Roppert K, Kaltenbacher M.
europepmc +2 more sources
Recent Advances in Passive Acoustic Localization Methods via Aircraft and Wake Vortex Aeroacoustics
Fluids, 2022 Passive acoustic aircraft and wake localization methods rely on the noise emission from aircraft and their wakes for detection, tracking, and characterization.
Arnav Joshi +2 more
semanticscholar +1 more source
Research on near field aeroacoustics suppression of tilt-rotor aircraft based on rotor phase control
Applied Acoustics, 2022 In order to suppress the near field aeroacoustics radiation on the fuselage wall of the tilt-rotor aircraft, a noise suppression method is proposed based on the rotor phase control.
Jinchao Ma, Yang Lu, Xice Xu, Huiyu Yue
semanticscholar +1 more source
Aeroacoustics research in Europe: The CEAS-ASC report on 2020 & 2021 highlights
Journal of Sound and Vibration, 2022 The Council of European Aerospace Societies (CEAS) Aeroacoustics Specialists Committee (ASC) supports and promotes the interests of the scientific and industrial aeroacoustics community on a European scale and European aeronautics activities ...
A. Nagy, J. Delfs, G. Bennett
semanticscholar +1 more source