Prediction of atmospheric sound propagation subject to parameter variability of atmospheric turbulence

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Original languageEnglish
Title of host publicationProceedings of the 23rd International Congress on Acoustics
Subtitle of host publicationIntegrating 4th EAA Euroregio 2019
EditorsMartin Ochmann, Vorlander Michael, Janina Fels
Pages3818-3825
Number of pages8
ISBN (electronic)9783939296157
Publication statusPublished - 2019
Event23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019 - Aachen, Germany
Duration: 9 Sept 201913 Sept 2019

Publication series

NameProceedings of the International Congress on Acoustics
Volume2019-September
ISSN (Print)2226-7808
ISSN (electronic)2415-1599

Abstract

As part of the project „WEA-Akzeptanz“an atmospheric sound propagation model is developed to predict the sound immission from a wind turbine. The CNPE (Crank Nicolson Parabolic Equation) method, based on the Helmholz equation is chosen as the sound propagation model. Complex environmental conditions such as atmospheric turbulence can be implemented with a random number generator in this model. Atmospheric turbulence is characterized by temporal fluctuating wind speed and temperature, which has an impact on the sound propagation and leads to scattered sound waves due to the turbulent eddies. Accordingly, the input of the model contains parameter variability. As a result, the sound pressure level at the point of immission also has a high variability and is not entirely deterministic. In this work, the influence of random input variables due to atmospheric turbulence on the uncertainty of the resulting sound pressure level is investigated. Using this, the probability of the predicted sound pressure level can be quantified to get a better idea of sound immission under complex atmospheric conditions.

Keywords

    Atmosphere, Sound Propagation, Uncertainty

ASJC Scopus subject areas

Cite this

Prediction of atmospheric sound propagation subject to parameter variability of atmospheric turbulence. / Hörmeyer, Jasmin; Hübler, Clemens; Bohne, Tobias et al.
Proceedings of the 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio 2019. ed. / Martin Ochmann; Vorlander Michael; Janina Fels. 2019. p. 3818-3825 (Proceedings of the International Congress on Acoustics; Vol. 2019-September).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Hörmeyer, J, Hübler, C, Bohne, T & Rolfes, R 2019, Prediction of atmospheric sound propagation subject to parameter variability of atmospheric turbulence. in M Ochmann, V Michael & J Fels (eds), Proceedings of the 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio 2019. Proceedings of the International Congress on Acoustics, vol. 2019-September, pp. 3818-3825, 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019, Aachen, Germany, 9 Sept 2019. https://doi.org/10.18154/RWTH-CONV-239815
Hörmeyer, J., Hübler, C., Bohne, T., & Rolfes, R. (2019). Prediction of atmospheric sound propagation subject to parameter variability of atmospheric turbulence. In M. Ochmann, V. Michael, & J. Fels (Eds.), Proceedings of the 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio 2019 (pp. 3818-3825). (Proceedings of the International Congress on Acoustics; Vol. 2019-September). https://doi.org/10.18154/RWTH-CONV-239815
Hörmeyer J, Hübler C, Bohne T, Rolfes R. Prediction of atmospheric sound propagation subject to parameter variability of atmospheric turbulence. In Ochmann M, Michael V, Fels J, editors, Proceedings of the 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio 2019. 2019. p. 3818-3825. (Proceedings of the International Congress on Acoustics). doi: 10.18154/RWTH-CONV-239815
Hörmeyer, Jasmin ; Hübler, Clemens ; Bohne, Tobias et al. / Prediction of atmospheric sound propagation subject to parameter variability of atmospheric turbulence. Proceedings of the 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio 2019. editor / Martin Ochmann ; Vorlander Michael ; Janina Fels. 2019. pp. 3818-3825 (Proceedings of the International Congress on Acoustics).
Download
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title = "Prediction of atmospheric sound propagation subject to parameter variability of atmospheric turbulence",
abstract = "As part of the project „WEA-Akzeptanz“an atmospheric sound propagation model is developed to predict the sound immission from a wind turbine. The CNPE (Crank Nicolson Parabolic Equation) method, based on the Helmholz equation is chosen as the sound propagation model. Complex environmental conditions such as atmospheric turbulence can be implemented with a random number generator in this model. Atmospheric turbulence is characterized by temporal fluctuating wind speed and temperature, which has an impact on the sound propagation and leads to scattered sound waves due to the turbulent eddies. Accordingly, the input of the model contains parameter variability. As a result, the sound pressure level at the point of immission also has a high variability and is not entirely deterministic. In this work, the influence of random input variables due to atmospheric turbulence on the uncertainty of the resulting sound pressure level is investigated. Using this, the probability of the predicted sound pressure level can be quantified to get a better idea of sound immission under complex atmospheric conditions.",
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note = "Funding information: The Institute of Structural Analysis is part of the Center for Wind Energy Research For-Wind. Within in the project „WEA-Akzeptanz“, the research at Leibniz University of Hannover is carried out together with the project partner Senvion GmbH and is funded by the Federal Ministry for Economic Affairs and Energy by an act of the German Parliament (project ref. no. 0324134A). The authors gratefully acknowledge the financial support from the research funding organization as well as the great support from the operator of the wind farm and the local citizens. For further information about the project „WEA-Akzeptanz“, please visit the project homepage at www.wea-akzeptanz.uni-hannover.de.; 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019 ; Conference date: 09-09-2019 Through 13-09-2019",
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AU - Rolfes, Raimund

N1 - Funding information: The Institute of Structural Analysis is part of the Center for Wind Energy Research For-Wind. Within in the project „WEA-Akzeptanz“, the research at Leibniz University of Hannover is carried out together with the project partner Senvion GmbH and is funded by the Federal Ministry for Economic Affairs and Energy by an act of the German Parliament (project ref. no. 0324134A). The authors gratefully acknowledge the financial support from the research funding organization as well as the great support from the operator of the wind farm and the local citizens. For further information about the project „WEA-Akzeptanz“, please visit the project homepage at www.wea-akzeptanz.uni-hannover.de.

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N2 - As part of the project „WEA-Akzeptanz“an atmospheric sound propagation model is developed to predict the sound immission from a wind turbine. The CNPE (Crank Nicolson Parabolic Equation) method, based on the Helmholz equation is chosen as the sound propagation model. Complex environmental conditions such as atmospheric turbulence can be implemented with a random number generator in this model. Atmospheric turbulence is characterized by temporal fluctuating wind speed and temperature, which has an impact on the sound propagation and leads to scattered sound waves due to the turbulent eddies. Accordingly, the input of the model contains parameter variability. As a result, the sound pressure level at the point of immission also has a high variability and is not entirely deterministic. In this work, the influence of random input variables due to atmospheric turbulence on the uncertainty of the resulting sound pressure level is investigated. Using this, the probability of the predicted sound pressure level can be quantified to get a better idea of sound immission under complex atmospheric conditions.

AB - As part of the project „WEA-Akzeptanz“an atmospheric sound propagation model is developed to predict the sound immission from a wind turbine. The CNPE (Crank Nicolson Parabolic Equation) method, based on the Helmholz equation is chosen as the sound propagation model. Complex environmental conditions such as atmospheric turbulence can be implemented with a random number generator in this model. Atmospheric turbulence is characterized by temporal fluctuating wind speed and temperature, which has an impact on the sound propagation and leads to scattered sound waves due to the turbulent eddies. Accordingly, the input of the model contains parameter variability. As a result, the sound pressure level at the point of immission also has a high variability and is not entirely deterministic. In this work, the influence of random input variables due to atmospheric turbulence on the uncertainty of the resulting sound pressure level is investigated. Using this, the probability of the predicted sound pressure level can be quantified to get a better idea of sound immission under complex atmospheric conditions.

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By the same author(s)