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Distributed surface compliance for airfoil tonal noise reduction at various loading conditions
The Physics of Fluids, 2022A novel concept of utilizing distributed surface compliance to achieve airfoil tonal noise reduction at various loading conditions is proposed. The aeroacoustics of airfoil configuration subjected to different loading conditions at angles of attack (AoAs)
Irsalan Arif +3 more
semanticscholar +1 more source
Experimental investigation of aerofoil tonal noise at low Mach number
Journal of Fluid Mechanics, 2021This paper presents an experimental investigation of aerofoil tones emitted by a controlled-diffusion aerofoil at low Mach number ($0.05$), moderate Reynolds number based on the chord length ($1.4 \times 10^{5}$) and moderate incidence ($5^{\circ ...
Prateek Jaiswal +3 more
semanticscholar +1 more source
Effect of dual vortex shedding on airfoil tonal noise generation
The Physics of Fluids, 2021To improve understanding of dual vortex shedding over a trailing edge with regard to airfoil tonal noise generation, synchronized velocity and noise measurements are conducted on a NACA (National Advisory Committee for Aeronautics) 0012 airfoil at angle ...
Y. Yang +5 more
semanticscholar +1 more source
Effect of tonal noise and task difficulty on electroencephalography and cognitive performance
International Journal of Occupational Safety and Ergonomics, 2021Objectives. The present study aimed to investigate the effect of tonal noise and task difficulty on electroencephalography (EEG) and cognitive performance. Methods. Twelve healthy volunteers participated in the present study.
M. Sadeghian +6 more
semanticscholar +1 more source
Airfoil flow receptivity to simulated tonal noise emissions
, 2021On airfoils at low to moderate Reynolds numbers, trailing edge sound can have a feedback effect on the development of instability waves resulting in strongly periodic vortex shedding and tonal noise.
S. Pröbsting, S. Yarusevych
semanticscholar +1 more source
Tonal noise prediction in a small high speed centrifugal fan and experimental validation
Applied Acoustics, 2017Kishokanna Paramasivam +2 more
exaly +2 more sources
A NEW APPROACH FOR THE EVALUATION OF TONAL NOISE (TONALITY)
1999Tonal noise (DIN 45681 [1]) is an important parameter affecting sound quality and is substantial for the assessment of the annoyance of tonal components in environmental noises. For the measurement of time varying weak tonal components of complex technical and natural sounds none of the existing methods correspond to subjective ratings [2]. This is due
MATTHIAS VORMANN +3 more
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Clinical and Audiological Characteristics of Tonal and Noise Tinnitus
ORL, 2010A study was made of the clinical and audiological characteristics of tonal and noise tinnitus through a correlation of detailed patient interviews, comprehensive neurootological examination results, and clinical data on tinnitus type, frequency, loudness and bandwidth obtained with our newly developed tinnitus-measuring device. Of the 205 cases studied,
A, Kodama, M, Kitahara
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Passive Control for Turbofan Tonal Noise
AIAA Journal, 2005A three-dimensional linearized Euler model is developed for the interaction and scattering of unsteady incident disturbances by an annular cascade of unloaded blades. The model is first used to examine the validity of the popular two-dimensional strip theory for three-dimensional annular cascades at frequencies relevant to fan engine noise.
B. Elhadidi, H. M. Atassi
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Tonal Noise Measurements and Simulations of an Over-The-Wing Propeller
AIAA AVIATION 2023 Forum, 2023Concerns the following publication: https://arc.aiaa.org/doi/abs/10.2514/6.2023-3358.
Dekker, Hasse +4 more
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