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Time-evolution of sound levels around a roadside building

Heimann, Dietrich and Schady, Arthur and Schuster, Roland and Berkefeld, Tobias (2018) Time-evolution of sound levels around a roadside building. Applied Acoustics, 133, pp. 123-132. Elsevier. DOI: 10.1016/j.apacoust.2017.12.011 ISSN 0003-682X

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Official URL: https://doi.org/10.1016/j.apacoust.2017.12.011

Abstract

The time evolution of the sound impact due to single cars driving along a road was evaluated at seven receivers in front of and behind a road-side building. The sound impact was measured in the field and around a scale model of the building in a laboratory. In addition, two calculation methods were applied: a complex numerical finite-difference time-domain model based on the Euler equation and a simple ray-based calculation according to the ISO 9613-2 standard. On the backside of the building where sound waves only arrive by diffraction, the differences between the four methods are disappointingly large. Some of the discrepancies can be explained by diverse assumptions and boundary conditions which go along with the individual methods. However, a major disagreement largely remains an open problem, namely the magnitude of the drop of the sound level in the acoustical shadow of the building. It is fairly strong in the scale-model measurements and the Euler model simulations on the one hand, but rather weak or even not existing in the field measurements and ISO 9613-2 calculations on the other hand.

Item URL in elib:https://elib.dlr.de/118272/
Document Type:Article
Title:Time-evolution of sound levels around a roadside building
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Heimann, DietrichDLR, IPAUNSPECIFIED
Schady, ArthurDLR, IPAUNSPECIFIED
Schuster, RolandDLR, ASUNSPECIFIED
Berkefeld, TobiasDLR, ASUNSPECIFIED
Date:2018
Journal or Publication Title:Applied Acoustics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:133
DOI :10.1016/j.apacoust.2017.12.011
Page Range:pp. 123-132
Publisher:Elsevier
ISSN:0003-682X
Status:Published
Keywords:Sound Propagation, Diffraction, Building, Measurement, Simulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Verkehrsentwicklung und Umwelt II (old)
Location: Göttingen , Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Institute for Aerodynamics and Flow Technology > Fluid Systems, GO
Deposited By: Heimann, Dr.rer.nat.hab. Dietrich
Deposited On:16 Jan 2018 11:26
Last Modified:06 Sep 2019 15:17

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