Investigating the impact of atmospheric boundary layer stratification on wind farm noise propagation

Jules Colas; Didier Dragna; Ariane Emmanuelli; Philippe Blanc-Benon; Benjamin Cotté; Richard Stevens

doi:10.61782/fa.2023.0608

Investigating the impact of atmospheric boundary layer stratification on wind farm noise propagation

Jules Colas^*, Didier Dragna, Ariane Emmanuelli, Philippe Blanc-Benon, Benjamin Cotté, Richard Stevens

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

The expansion of wind farm installations has been hindered by annoyance issues resulting from the noise emitted by wind turbines. Understanding the factors that affect sound propagation is crucial to mitigate the impact of noise. Atmospheric boundary layer (ABL) stratification strongly affects the noise propagation of isolated wind turbines. However, few studies have looked at the influence of atmospheric conditions on wind farm noise propagation. This study aims to investigate this through numerical simulations. Large eddy simulations (LES) are used to predict the mean flow inside and around the wind farm. The noise from each wind turbine is computed from an extended source model that determines the wind turbine sound production based on its geometry, and on the flow characteristics (wind speed and turbulence intensity). A model based on the parabolic equation is employed to compute the sound propagation based on the flow fields obtained from LES. Neutral, stable and unstable stability conditions are considered for an idealized wind farm layout. The results of this study provide insight into the influence of atmospheric conditions on wind farm sound propagation and can inform the development of effective noise mitigation strategies.

Original language	English
Title of host publication	Forum Acusticum 2023 - 10th Convention of the European Acoustics Association, EAA 2023
Publisher	European Acoustics Association
ISBN (Electronic)	9788888942674
DOIs	https://doi.org/10.61782/fa.2023.0608
Publication status	Published - 2023
Event	10th Convention of the European Acoustics Association, Forum Acusticum 2023 - Torino, Italy Duration: 11 Sept 2023 → 15 Sept 2023 Conference number: 10

Publication series

Name	Proceedings of Forum Acusticum
ISSN (Print)	2221-3767

Conference

Conference	10th Convention of the European Acoustics Association, Forum Acusticum 2023
Abbreviated title	Forum Acusticum 2023
Country/Territory	Italy
City	Torino
Period	11/09/23 → 15/09/23

Keywords

atmospheric boundary layer
sound propagation
Wind farm

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.61782/fa.2023.0608Licence: CC BY

000608Final published version, 1.71 MBLicence: CC BY

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Colas, J., Dragna, D., Emmanuelli, A., Blanc-Benon, P., Cotté, B., & Stevens, R. (2023). Investigating the impact of atmospheric boundary layer stratification on wind farm noise propagation. In Forum Acusticum 2023 - 10th Convention of the European Acoustics Association, EAA 2023 (Proceedings of Forum Acusticum). European Acoustics Association. https://doi.org/10.61782/fa.2023.0608

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title = "Investigating the impact of atmospheric boundary layer stratification on wind farm noise propagation",

abstract = "The expansion of wind farm installations has been hindered by annoyance issues resulting from the noise emitted by wind turbines. Understanding the factors that affect sound propagation is crucial to mitigate the impact of noise. Atmospheric boundary layer (ABL) stratification strongly affects the noise propagation of isolated wind turbines. However, few studies have looked at the influence of atmospheric conditions on wind farm noise propagation. This study aims to investigate this through numerical simulations. Large eddy simulations (LES) are used to predict the mean flow inside and around the wind farm. The noise from each wind turbine is computed from an extended source model that determines the wind turbine sound production based on its geometry, and on the flow characteristics (wind speed and turbulence intensity). A model based on the parabolic equation is employed to compute the sound propagation based on the flow fields obtained from LES. Neutral, stable and unstable stability conditions are considered for an idealized wind farm layout. The results of this study provide insight into the influence of atmospheric conditions on wind farm sound propagation and can inform the development of effective noise mitigation strategies.",

keywords = "atmospheric boundary layer, sound propagation, Wind farm",

author = "Jules Colas and Didier Dragna and Ariane Emmanuelli and Philippe Blanc-Benon and Benjamin Cott{\'e} and Richard Stevens",

note = "Publisher Copyright: {\textcopyright} 2023 Jules Colas et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.; 10th Convention of the European Acoustics Association, Forum Acusticum 2023, Forum Acusticum 2023 ; Conference date: 11-09-2023 Through 15-09-2023",

year = "2023",

doi = "10.61782/fa.2023.0608",

language = "English",

series = "Proceedings of Forum Acusticum",

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Colas, J, Dragna, D, Emmanuelli, A, Blanc-Benon, P, Cotté, B & Stevens, R 2023, Investigating the impact of atmospheric boundary layer stratification on wind farm noise propagation. in Forum Acusticum 2023 - 10th Convention of the European Acoustics Association, EAA 2023. Proceedings of Forum Acusticum, European Acoustics Association, 10th Convention of the European Acoustics Association, Forum Acusticum 2023, Torino, Italy, 11/09/23. https://doi.org/10.61782/fa.2023.0608

Investigating the impact of atmospheric boundary layer stratification on wind farm noise propagation. / Colas, Jules; Dragna, Didier; Emmanuelli, Ariane et al.
Forum Acusticum 2023 - 10th Convention of the European Acoustics Association, EAA 2023. European Acoustics Association, 2023. (Proceedings of Forum Acusticum).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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T1 - Investigating the impact of atmospheric boundary layer stratification on wind farm noise propagation

AU - Colas, Jules

AU - Dragna, Didier

AU - Emmanuelli, Ariane

AU - Blanc-Benon, Philippe

AU - Cotté, Benjamin

AU - Stevens, Richard

N1 - Conference code: 10

PY - 2023

Y1 - 2023

N2 - The expansion of wind farm installations has been hindered by annoyance issues resulting from the noise emitted by wind turbines. Understanding the factors that affect sound propagation is crucial to mitigate the impact of noise. Atmospheric boundary layer (ABL) stratification strongly affects the noise propagation of isolated wind turbines. However, few studies have looked at the influence of atmospheric conditions on wind farm noise propagation. This study aims to investigate this through numerical simulations. Large eddy simulations (LES) are used to predict the mean flow inside and around the wind farm. The noise from each wind turbine is computed from an extended source model that determines the wind turbine sound production based on its geometry, and on the flow characteristics (wind speed and turbulence intensity). A model based on the parabolic equation is employed to compute the sound propagation based on the flow fields obtained from LES. Neutral, stable and unstable stability conditions are considered for an idealized wind farm layout. The results of this study provide insight into the influence of atmospheric conditions on wind farm sound propagation and can inform the development of effective noise mitigation strategies.

AB - The expansion of wind farm installations has been hindered by annoyance issues resulting from the noise emitted by wind turbines. Understanding the factors that affect sound propagation is crucial to mitigate the impact of noise. Atmospheric boundary layer (ABL) stratification strongly affects the noise propagation of isolated wind turbines. However, few studies have looked at the influence of atmospheric conditions on wind farm noise propagation. This study aims to investigate this through numerical simulations. Large eddy simulations (LES) are used to predict the mean flow inside and around the wind farm. The noise from each wind turbine is computed from an extended source model that determines the wind turbine sound production based on its geometry, and on the flow characteristics (wind speed and turbulence intensity). A model based on the parabolic equation is employed to compute the sound propagation based on the flow fields obtained from LES. Neutral, stable and unstable stability conditions are considered for an idealized wind farm layout. The results of this study provide insight into the influence of atmospheric conditions on wind farm sound propagation and can inform the development of effective noise mitigation strategies.

KW - atmospheric boundary layer

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BT - Forum Acusticum 2023 - 10th Convention of the European Acoustics Association, EAA 2023

PB - European Acoustics Association

T2 - 10th Convention of the European Acoustics Association, Forum Acusticum 2023

Y2 - 11 September 2023 through 15 September 2023

ER -

Investigating the impact of atmospheric boundary layer stratification on wind farm noise propagation

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