A point collocation approach to modelling large dissipative silencers

Kirby, R; Lawrie, JB

A point collocation approach to modelling large dissipative silencers

Kirby, R

Lawrie, JB

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Publication Type:: Journal Article
Citation:: Journal of Sound and Vibration, 2005, 286 (1-2), pp. 313 - 339
Issue Date:: 2005-08-23

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Field	Value	Language
dc.contributor.author	Kirby, R https://orcid.org/0000-0002-3520-1377	en_US
dc.contributor.author	Lawrie, JB	en_US
dc.date.issued	2005-08-23	en_US
dc.identifier.citation	Journal of Sound and Vibration, 2005, 286 (1-2), pp. 313 - 339	en_US
dc.identifier.issn	0022-460X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/114523
dc.description.abstract	A numerical matching technique known as point collocation is used to model mathematically large dissipative splitter silencers of a type commonly found in HVAC ducts. Transmission loss predictions obtained using point collocation are compared with exact analytic mode matching predictions in the absence of mean flow. Over the frequency range in which analytic mode matching predictions are available, excellent agreement with point collocation transmission loss predictions is observed for a range of large splitter silencers. The validity of using point collocation to tackle large dissipative silencers is established, as is the computational efficiency of the method and its suitability for tackling dissipative silencers of arbitrary, but axially uniform, cross-sections. © 2004 Elsevier Ltd. All rights reserved.	en_US
dc.relation.ispartof	Journal of Sound and Vibration	en_US
dc.relation.isbasedon	10.1016/j.jsv.2004.10.016	en_US
dc.subject.classification	Acoustics	en_US
dc.title	A point collocation approach to modelling large dissipative silencers	en_US
dc.type	Journal Article
utslib.citation.volume	1-2	en_US
utslib.citation.volume	286	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	open_access
pubs.issue	1-2	en_US
pubs.publication-status	Published	en_US
pubs.volume	286	en_US

Abstract:

A numerical matching technique known as point collocation is used to model mathematically large dissipative splitter silencers of a type commonly found in HVAC ducts. Transmission loss predictions obtained using point collocation are compared with exact analytic mode matching predictions in the absence of mean flow. Over the frequency range in which analytic mode matching predictions are available, excellent agreement with point collocation transmission loss predictions is observed for a range of large splitter silencers. The validity of using point collocation to tackle large dissipative silencers is established, as is the computational efficiency of the method and its suitability for tackling dissipative silencers of arbitrary, but axially uniform, cross-sections. © 2004 Elsevier Ltd. All rights reserved.

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http://hdl.handle.net/10453/114523