Benjamin Cotté
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View article: Three-dimensional effects of the wake on wind turbine sound propagation using parabolic equation
Three-dimensional effects of the wake on wind turbine sound propagation using parabolic equation Open
The influence of three-dimensional (3D) wind turbine wake effects on sound propagation is investigated. To study this, numerical simulations are conducted using a 3D parabolic equation model at low frequencies, with comparisons made to a t…
View article: Impact of a two-dimensional steep hill on wind turbine noise propagation
Impact of a two-dimensional steep hill on wind turbine noise propagation Open
Wind turbine noise propagation in a hilly terrain is studied through numerical simulation in different scenarios. Linearized Euler equations are solved in a moving frame that follows the wavefront, and wind turbine noise is modeled with an…
View article: Computation of Green's functions for the acoustic scattering by an elastic structure excited by a turbulent flow in water
Computation of Green's functions for the acoustic scattering by an elastic structure excited by a turbulent flow in water Open
To model the hydrodynamic noise produced by an elastic ship hull or propeller excited by a turbulent boundary layer, we need an efficient method to compute the acoustic scattering by an elastic body surrounded by a fluid. In 3D, Boundary E…
View article: Comment on wes-2024-36
Comment on wes-2024-36 Open
Abstract. Wind turbine noise propagation in a hilly terrain is studied through numerical simulation in different scenarios. The linearized Euler equations are solved in a moving frame that follows the wavefront, and wind turbine noise is m…
View article: Impact of a Two-Dimensional Steep Hill on Wind Turbine Noise Propagation
Impact of a Two-Dimensional Steep Hill on Wind Turbine Noise Propagation Open
Wind turbine noise propagation in a hilly terrain is studied through numerical simulation in different scenarios. The linearized Euler equations are solved in a moving frame that follows the wavefront, and wind turbine noise is modeled wit…
View article: Investigating the Impact of Atmospheric Boundary Layer Stratification on Wind Farm Noise Propagation
Investigating the Impact of Atmospheric Boundary Layer Stratification on Wind Farm Noise Propagation Open
International audience
View article: Effect of Roughness on the Aeroacoustic Performance of Rotor Noise at Low Reynolds Number
Effect of Roughness on the Aeroacoustic Performance of Rotor Noise at Low Reynolds Number Open
The actual and future multiplication of unmanned aerial vehicles (UAV) in urban settings calls for a better understanding and optimization of the aeroacoustic noise produced by their rotors.This phenomenon is associated with low Reynolds n…
View article: Validation of a wind turbine noise propagation model against field measurements
Validation of a wind turbine noise propagation model against field measurements Open
Predicting the noise radiated by a wind farm needs to take into account many parameters such as wind turbine operational conditions, wind and temperature profiles, atmospheric turbulence, ground impedance and topography.In this study, we a…
View article: Wind turbine noise auralization including tonal and broadband aeroacoustic sources
Wind turbine noise auralization including tonal and broadband aeroacoustic sources Open
The annoyance reported by people living in the vicinity of wind farms may be due to the nature of the noise, which includes significant low frequency components with a modulated temporal structure.To better understand this annoyance, it is…
View article: Wind turbine sound propagation: Comparison of a linearized Euler equations model with parabolic equation methods
Wind turbine sound propagation: Comparison of a linearized Euler equations model with parabolic equation methods Open
Noise generated by wind turbines is significantly impacted by its propagation in the atmosphere. Hence, for annoyance issues, an accurate prediction of sound propagation is critical to determine noise levels around wind turbines. This stud…
View article: Propagation effects in the synthesis of wind turbine aerodynamic noise
Propagation effects in the synthesis of wind turbine aerodynamic noise Open
The sound field radiated by a wind turbine changes significantly with propagation distance, depending on the meteorological conditions and on the type of ground. In this article, we present a wind turbine noise synthesis model which is bas…
View article: Synthesis of wind turbine trailing edge noise in free field
Synthesis of wind turbine trailing edge noise in free field Open
The proposed sound synthesis tool converts a physics-based frequency-domain model of wind turbine trailing edge noise to a time-domain signal while accounting for the appropriate time shift due to the propagation between the moving blades …
View article: Physically-based sound synthesis software for Computer-Aided-Design of piano soundboards
Physically-based sound synthesis software for Computer-Aided-Design of piano soundboards Open
The design of pianos is mainly based on empirical knowledge due to the lack of a simple tool that could predict sound changes induced by modifications of the geometry and/or the mechanical properties of the soundboard. We introduce the con…
View article: Experimental characterization of the noise generated by an airfoil oscillating above stall
Experimental characterization of the noise generated by an airfoil oscillating above stall Open
International audience
View article: Low-Noise Synthetic Turbulence Tailored to Lateral Periodic Boundary Conditions
Low-Noise Synthetic Turbulence Tailored to Lateral Periodic Boundary Conditions Open
The present work is dedicated to turbulence synthesis tailored to lateral periodic boundary conditions for direct noise computations through compressible large eddy simulations. Synthetic turbulence can be essential for aeroacoustic applic…
View article: Low-Noise Synthetic Turbulence Tailored to Lateral Periodic Boundary Conditions
Low-Noise Synthetic Turbulence Tailored to Lateral Periodic Boundary Conditions Open
International audience
View article: Physics-based auralization of wind turbine noise
Physics-based auralization of wind turbine noise Open
International audience
View article: EXPERIMENTAL CHARACTERIZATION AND ANALYTICAL MODELING OF ROTOR TONAL NOISE
EXPERIMENTAL CHARACTERIZATION AND ANALYTICAL MODELING OF ROTOR TONAL NOISE Open
International audience
View article: Experimental Investigation of the Acoustic Radiation of an Oscillating Airfoil
Experimental Investigation of the Acoustic Radiation of an Oscillating Airfoil Open
International audience
View article: Application of sound synthesis of piano tones to study the vibroacoustics of piano soundboards
Application of sound synthesis of piano tones to study the vibroacoustics of piano soundboards Open
International audience
View article: Influence of environmental parameters on the modeling of wind turbine noise emission and propagation: a sensitivity analysis
Influence of environmental parameters on the modeling of wind turbine noise emission and propagation: a sensitivity analysis Open
Forum Acusticum, LYON, FRANCE, 07-/12/2020 - 11/12/2020
View article: An analytical approach based on tailored Green's functions for flow noise prediction at low Mach number
An analytical approach based on tailored Green's functions for flow noise prediction at low Mach number Open
International audience
View article: Experimental Characterization and Analytical Modelling of Rotor Tonal Noise
Experimental Characterization and Analytical Modelling of Rotor Tonal Noise Open
Rotors have played a huge role in the history of the aerospace industry. It is being widely used in small scale aircraft, helicopters, ships, wind turbines, to name a few. The study of noise generated by the rotors is an important subject …
View article: MAESSTRO: A sound synthesis framework for Computer-Aided Design of piano soundboards
MAESSTRO: A sound synthesis framework for Computer-Aided Design of piano soundboards Open
International audience
View article: Impact of the Green function in acoustic analogies for flow noise predictions at low Mach number
Impact of the Green function in acoustic analogies for flow noise predictions at low Mach number Open
International audience
View article: Airfoil Noise Numerical Simulations with Direct Noise Computation and Hybrid Methods Using Inflow Synthetic Turbulence
Airfoil Noise Numerical Simulations with Direct Noise Computation and Hybrid Methods Using Inflow Synthetic Turbulence Open
International audience
View article: Extended source models for wind turbine noise propagation
Extended source models for wind turbine noise propagation Open
Accurate prediction of wind turbine noise propagation over long distances requires modeling the dominant broadband aerodynamic noise sources, as well as the main outdoor sound propagation effects. In this study, two methods are compared to…