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http://bura.brunel.ac.uk/handle/2438/9933
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DC Field | Value | Language |
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dc.contributor.author | Kirby, R | - |
dc.date.accessioned | 2015-01-26T12:44:19Z | - |
dc.date.available | 2014 | - |
dc.date.available | 2015-01-26T12:44:19Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Applied Acoustics, 86: 47 - 49, (December 2014) | en_US |
dc.identifier.issn | 0003-682X | - |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S0003682X14001261 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/9933 | - |
dc.description.abstract | It is well known that the formulae developed by Delany and Bazley for characterising the acoustic properties of porous materials should not be extended to low frequencies. Accordingly, a low frequency correction is required when finding the surface impedance or absorption coefficient of a porous material. This article reviews corrections of a type originally proposed by Miki [J. Acoust. Soc. Japan, 1990;11:19-24] and concludes that there is no physical basis behind these methods and that they should not be used. Instead, a number of alternative methods are available that maintain the correct limiting behaviour for the fundamental properties of a porous material at low frequencies, and two of these methods are briefly reviewed here. | en_US |
dc.format.extent | 47 - 49 | - |
dc.format.extent | 47 - 49 | - |
dc.language | eng | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.subject | Absorption coefficient | en_US |
dc.subject | Low frequency | en_US |
dc.subject | Miki method | en_US |
dc.subject | Surface impedance | en_US |
dc.title | On the modification of Delany and Bazley fomulae | en_US |
dc.type | Article | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/j.apacoust.2014.04.020 | - |
dc.relation.isPartOf | Applied Acoustics | - |
dc.relation.isPartOf | Applied Acoustics | - |
pubs.volume | 86 | - |
pubs.volume | 86 | - |
pubs.organisational-data | /Brunel | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Mechanical, Aerospace and Civil Engineering | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Mechanical, Aerospace and Civil Engineering/Mechanical and Aerospace Engineering | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing/Structural Integrity | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/Brunel Business School - URCs and Groups | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/Brunel Business School - URCs and Groups/Centre for Research into Entrepreneurship, International Business and Innovation in Emerging Markets | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups/Brunel Institute for Ageing Studies | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups/Brunel Institute of Cancer Genetics and Pharmacogenomics | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups/Centre for Systems and Synthetic Biology | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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Fulltext.docx | 3.79 MB | Unknown | View/Open |
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