On the Application of Wavelet Transform in Jet Aeroacoustics
Fluids, 2021 Wavelet transform has become a common tool for processing non-stationary signals in many different fields. The present paper reports a review of some applications of wavelet in aeroacoustics with a special emphasis on the analysis of experimental data ...
R. Camussi, S. Meloni
semanticscholar +1 more source
Lattice Boltzmann method for computational aeroacoustics on non-uniform meshes: A direct grid coupling approach [PDF]
Journal of Computational Physics, 2020 The present study proposes a highly accurate lattice Boltzmann direct coupling cell-vertex algorithm, well suited for industrial purposes, making it highly valuable for aeroacoustic applications.
Thomas Astoul +4 more
semanticscholar +1 more source
Comparison of outflow boundary conditions for subsonic aeroacoustic simulations [PDF]
, 2011 Aeroacoustics simulations require much more precise boundary conditions than classical aerodynamics. Two classes of non-reflecting boundary conditions for aeroacoustics are compared in the present work: characteristic analysis based methods and Tam and ...
Berenger +23 more
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Aeroacoustics research in Europe: The CEAS-ASC report on 2019 highlights
Journal of Sound and Vibration, 2020 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 ...
R. Camussi, G. Bennett
semanticscholar +1 more source
Reduced dimension modeling of leading edge turbulent interaction noise [PDF]
, 2014 A computational aeroacoustics approach is used to model the effects of real airfoil geometry on leading edge turbulent interaction noise for symmetric airfoils at zero angle of attack.
Bailly C. +5 more
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On the effect of the tip-clearance ratio on the aeroacoustics of a diffuser-augmented wind turbine
Renewable Energy, 2020 Lattice-Boltzmann Very-Large-Eddy Simulations of two Diffuser-Augmented Wind Turbines are carried out to investigate the effect of the tip-clearance (TC) ratio on both the flow field and the far-field noise. The DonQi® wind turbine, a three blades ducted
F. Avallone, D. Ragni, D. Casalino
semanticscholar +1 more source
Numerical and Experimental Investigations of Axial Flow Fan with Bionic Forked Trailing Edge
Machines, 2023 To improve the performance of the aerodynamic properties and reduce the aerodynamic noise of an axial flow fan in the outdoor unit of an air conditioner, this study proposed a bionic forked trailing-edge structure inspired by the forked fish caudal fin ...
Zhong Liang +5 more
doaj +1 more source
Residual-based stabilization of the finite element approximation to the acoustic perturbation equations for low Mach number aeroacoustics [PDF]
, 2016 This is the peer reviewed version of the following article: [Guasch, O., Sánchez-Martín, P., Pont, A., Baiges, J., and Codina, R. (2016) Residual-based stabilization of the finite element approximation to the acoustic perturbation equations for low Mach ...
Baiges Aznar, Joan +4 more
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Computational aeroacoustics of the EAA benchmark case of an axial fan
Acta Acustica, 2020 This contribution benchmarks the aeroacoustic workflow of the perturbed convective wave equation and the Ffowcs Williams and Hawkings analogy in Farassat’s 1A version for a low-pressure axial fan.
S. Schoder +2 more
semanticscholar +1 more source
Experimental Investigations on the Possibility to Apply the Corrugated Sheet Metal Used in the Past with Junkers Aircraft to Reduce Noise for Future European Aircraft. Other Noise Reduction Experiments for Future European Aircraft [PDF]
INCAS Bulletin, 2018 This paper shows that corrugated skin used in the past with Junkers aircraft to increase the fuselage and wing rigidity can lead to noise reduction for future European aircraft. If the pressure side of wing which is placed above the engine is corrugated,
Constantin SANDU +4 more
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