Meteorological effects on the noise shielding by low parallel wall structures

T. Van Renterghem, M.C.J. Hornikx, S. Taherzadeh, K. Attenborough

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Numerical calculations, scale model experiments and real-life implementations have shown that the insertion of a closely spaced array of low parallel walls beside a road is potentially a valuable road traffic noise abatement technique. However, all previous studies have assumed a non-refracting and non-turbulent atmosphere. This study carries out a numerical assessment of the extent to which the noise reduction is preserved in the presence of wind gradients and turbulence. Several full-wave calculation techniques have been used to model the noise reduction provided by parallel walls subject to moderate and strong winds, and in a turbulent atmosphere. While meteorological effects do not deteriorate the insertion loss of the parallel wall array in the low frequency range, higher sound frequencies are strongly negatively affected. These numerical results are compared to the noise shielding of traditional highway noise walls with different heights including refraction.
Originele taal-2Engels
TitelProceedings of the Inter-Noise 2016 : 45th International Congress and Exposition on Noise Control Engineering : towards a quiter future : August 21-24, 2016, Hamburg
RedacteurenW. Kropp, O. von Estorff, B. Schulte-Fortkamp
Plaats van productieBerlin
UitgeverijDeutsche Gesellschaft für Akustik
Pagina's1865-1868
Aantal pagina's4
ISBN van elektronische versie978-3-939296-11-9
StatusGepubliceerd - 2016
Evenement45th International Congress on Noise Control Engineering (INTER-NOISE 2016) - Congress Center Hamburg, Hamburg, Duitsland
Duur: 21 aug 201624 aug 2016
Congresnummer: 45
http://www.internoise2016.org

Congres

Congres45th International Congress on Noise Control Engineering (INTER-NOISE 2016)
Verkorte titelINTER-NOISE 2016
LandDuitsland
StadHamburg
Periode21/08/1624/08/16
AnderTowards a Quiter Future
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  • Citeer dit

    Van Renterghem, T., Hornikx, M. C. J., Taherzadeh, S., & Attenborough, K. (2016). Meteorological effects on the noise shielding by low parallel wall structures. In W. Kropp, O. von Estorff, & B. Schulte-Fortkamp (editors), Proceedings of the Inter-Noise 2016 : 45th International Congress and Exposition on Noise Control Engineering : towards a quiter future : August 21-24, 2016, Hamburg (blz. 1865-1868). Deutsche Gesellschaft für Akustik.