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Type: Journal article
Title: Flow resistance information for acoustical design
Author: Bies, D.A.
Hansen, C.H.
Citation: Applied Acoustics, 1980; 13(5):357-391
Publisher: Applied Science Publishers
Issue Date: 1980
ISSN: 0003-682X
Statement of
D.A. Bies and C.H. Hansen
Abstract: The measurement and use of flow resistance information for the calculation of the acoustical properties of porous materials has been examined. It is demonstrated that flow resistance information provides a description of a porous material which is sufficient to characterise its acoustical performance for all common applications. Design charts are presented which facilitate the use of flow resistance information for the three most common applications: (1) the control of the reverberant sound field in an enclosure, (2) the improvement of the transmission loss through pipe wrappings and enclosure walls and (3) the attenuation of sound propagating in ducts. Measured values of flow resistance for fibrous and foamed products available in Australia are presented. Information is also presented for estimating the flow resistance of fibrous products of generally uniform fibre diameter. Alternatively, a means for the measurement of flow resistance is described.
Rights: © Applied Science Publishers Ltd, England, 1980
DOI: 10.1016/0003-682X(80)90002-X
Appears in Collections:Aurora harvest 2
Mechanical Engineering publications

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