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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 and Aerospace Engineering Research Papers Dept of Mathematics Research Papers Mathematical Sciences |
Files in This Item:
File | Description | Size | Format | |
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JSV 286 pp313_339.pdf | 625.76 kB | Adobe PDF | View/Open |
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