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Comparison of theoretical and experimental results for the directivity of panels and openings

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conference contribution
posted on 2024-11-23, 05:28 authored by John DavyJohn Davy
A theoretical method has been developed for predicting the directivity of the sound that is radiated from one side of a panel, or an opening, which is excited by sound incident from the other side of the panel, or the opening, from a room or duct. This directivity needs to be known when one is predicting the sound level at an external position which is due to the radiation of sound from the roof, wall, ventilating duct or chimney flue of a factory. The theoretical method is essentially a two dimensional method, although it does include some three dimensional considerations. This paper compares this theoretical method with published experimental data. The theory presented in this paper agrees with the average trend of the experimental measurements. However the experimental results show significant variability about the theoretical predictions. This is believed to be due to both experimental and theoretical difficulties.

History

Start page

1

End page

9

Total pages

9

Outlet

Acoustics 2008 : acoustics and sustainability : proceedings of the Annual Conference of the Australian Acoustical Society

Editors

T. McMinn

Name of conference

The Annual Conference of the Australian Acoustical Society

Publisher

Australian Acoustical Society

Place published

Melbourne, Australia

Start date

2008-11-24

End date

2008-11-26

Language

English

Copyright

© 2008 Australian Acoustical Society

Former Identifier

2006008989

Esploro creation date

2020-06-22

Fedora creation date

2009-09-25

Open access

  • Yes

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