Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/714
Title: A point collocation approach to modelling large dissipative silencers
Authors: Kirby, R
Lawrie, JB
Keywords: Dissipative silencers;Mode matching;Splitter silencers;Point collocation
Issue Date: 2005
Publisher: Elsevier
Citation: Journal of Sound and Vibration. 286(2005): 313-339
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.
URI: http://bura.brunel.ac.uk/handle/2438/714
DOI: http://dx.doi.org/10.1016/j.jsv.2004.10.016
ISSN: 0022-460X
Appears in Collections:Mathematical Physics
Mechanical and Aerospace Engineering
Dept of Mechanical Aerospace and Civil Engineering Research Papers
Dept of Mathematics Research Papers
Mathematical Sciences

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