Numerical investigation of the effect of crosswind on sound propagation outdoors

M.C.J. Hornikx, T. Van Renterghem

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)
5 Downloads (Pure)

Abstract

The effect of wind on sound propagation in the atmosphere has been studied extensively before with an emphasize on downwind sound propagation, typically representing worst-case scenarios. However, the influence of oblique and crosswind on propagation from various types of sources raises some questions in acoustic literature. In this work, the effect of a logarithmic wind speed profile at different wind directions has been studied for sound emitted by a point source, a coherent line source and an incoherent line source. For this purpose, a full three-dimensional wave-based method was used. For the incoherent line source simulation, the Harmonoise engineering approach based on a summation of source segments was considered as well and shows to be in satisfying agreement with the latter. While for a point source and coherent line source crosswind shows to have an insignificant effect, it is important in case of an incoherent line source. Also, the stretch of the incoherent line source contributing to the noise level at a receiver close to this line differs strongly depending on the wind direction.
Original languageEnglish
Pages (from-to)558-565
Number of pages8
JournalActa Acustica united with Acustica
Volume102
Issue number3
DOIs
Publication statusPublished - 2016

Fingerprint

sound propagation
wind direction
point sources
acoustics
Sound
receivers
engineering
atmospheres
propagation
profiles

Cite this

@article{d6798fcc66804bc586e8614a1f94d8c6,
title = "Numerical investigation of the effect of crosswind on sound propagation outdoors",
abstract = "The effect of wind on sound propagation in the atmosphere has been studied extensively before with an emphasize on downwind sound propagation, typically representing worst-case scenarios. However, the influence of oblique and crosswind on propagation from various types of sources raises some questions in acoustic literature. In this work, the effect of a logarithmic wind speed profile at different wind directions has been studied for sound emitted by a point source, a coherent line source and an incoherent line source. For this purpose, a full three-dimensional wave-based method was used. For the incoherent line source simulation, the Harmonoise engineering approach based on a summation of source segments was considered as well and shows to be in satisfying agreement with the latter. While for a point source and coherent line source crosswind shows to have an insignificant effect, it is important in case of an incoherent line source. Also, the stretch of the incoherent line source contributing to the noise level at a receiver close to this line differs strongly depending on the wind direction.",
author = "M.C.J. Hornikx and {Van Renterghem}, T.",
year = "2016",
doi = "10.3813/AAA.918973",
language = "English",
volume = "102",
pages = "558--565",
journal = "Acta Acustica united with Acustica",
issn = "1610-1928",
publisher = "S. Hirzel Verlag GmbH",
number = "3",

}

Numerical investigation of the effect of crosswind on sound propagation outdoors. / Hornikx, M.C.J.; Van Renterghem, T.

In: Acta Acustica united with Acustica, Vol. 102, No. 3, 2016, p. 558-565.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Numerical investigation of the effect of crosswind on sound propagation outdoors

AU - Hornikx, M.C.J.

AU - Van Renterghem, T.

PY - 2016

Y1 - 2016

N2 - The effect of wind on sound propagation in the atmosphere has been studied extensively before with an emphasize on downwind sound propagation, typically representing worst-case scenarios. However, the influence of oblique and crosswind on propagation from various types of sources raises some questions in acoustic literature. In this work, the effect of a logarithmic wind speed profile at different wind directions has been studied for sound emitted by a point source, a coherent line source and an incoherent line source. For this purpose, a full three-dimensional wave-based method was used. For the incoherent line source simulation, the Harmonoise engineering approach based on a summation of source segments was considered as well and shows to be in satisfying agreement with the latter. While for a point source and coherent line source crosswind shows to have an insignificant effect, it is important in case of an incoherent line source. Also, the stretch of the incoherent line source contributing to the noise level at a receiver close to this line differs strongly depending on the wind direction.

AB - The effect of wind on sound propagation in the atmosphere has been studied extensively before with an emphasize on downwind sound propagation, typically representing worst-case scenarios. However, the influence of oblique and crosswind on propagation from various types of sources raises some questions in acoustic literature. In this work, the effect of a logarithmic wind speed profile at different wind directions has been studied for sound emitted by a point source, a coherent line source and an incoherent line source. For this purpose, a full three-dimensional wave-based method was used. For the incoherent line source simulation, the Harmonoise engineering approach based on a summation of source segments was considered as well and shows to be in satisfying agreement with the latter. While for a point source and coherent line source crosswind shows to have an insignificant effect, it is important in case of an incoherent line source. Also, the stretch of the incoherent line source contributing to the noise level at a receiver close to this line differs strongly depending on the wind direction.

U2 - 10.3813/AAA.918973

DO - 10.3813/AAA.918973

M3 - Article

VL - 102

SP - 558

EP - 565

JO - Acta Acustica united with Acustica

JF - Acta Acustica united with Acustica

SN - 1610-1928

IS - 3

ER -