Acoustic performance of foliage based on green systems at normal incidence

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-02-28 DOI:10.1016/j.apacoust.2025.110591

Emmanuel Attal , Nicolas Dauchez

引用次数: 0

Abstract

The aim of this paper is to compare the acoustic parameters (absorption, reflection and transmission) of vegetation in reducing noise pollution according to types of applications: vegetation in building facades and in hedge configuration away from obstacles. The two configurations are investigated with vegetation thickness increase and leaf density in normal incidence condition. The effective and acoustic parameters of foliage were studied in the 100 Hz to 1000 Hz frequency range. Secondly, the experimental transfer matrices were compared with those derived from simulations using the Horoshenkov-Miki model, which uses the primary parameters (porosity, tortuosity and air flow resistivity) to discuss the evolution of their physical properties as a function of leaf density. The various simulations carried out using these models show that increasing foliage thickness and leaf density increasingly reduces transmission but favours acoustic reflection in the case of a foliage hedge, whereas acoustic reflection is considerably reduced in the case of a green facade.

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.