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DC Field | Value | Language |
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dc.contributor.author | Lawrie, JB | - |
dc.contributor.author | Guled, IMM | - |
dc.coverage.spatial | 11 | en |
dc.date.accessioned | 2009-07-09T13:43:13Z | - |
dc.date.available | 2009-07-09T13:43:13Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | The Journal of the Acoustical Society of America. 120 (2) 780–790. | en |
dc.identifier.uri | http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JASMAN000120000002000780000001&idtype=cvips&gifs=yes | en |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/3448 | - |
dc.description.abstract | A mode-matching method is used to investigate the performance of a two-dimensional, modified reactive silencer. The modification takes the form of a membrane which is attached to the internal walls of the expansion chamber parallel to the axis of the inlet/outlet ducts. The height of the membrane above the level of the inlet/outlet ducts can be varied and, by this means, the device is tuned. It is shown that the stopband produced by the silencer can be broadened and/or shifted depending upon the height to which the membrane is raised. Attention is focused on the efficiency of the device at low-frequencies - the regime where dissipative silencers are usually least effective. The potential use of the device as a component in a hybrid silencer for heating ventilation and air-conditioning (HVAC) ducting systems is discussed. | en |
dc.format.extent | 675766 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | Acoustical Society of America | en |
dc.subject | Reactive silencer | en |
dc.subject | Membrane boundary | en |
dc.subject | Non-standard orthogonality relation | en |
dc.subject | Mode-matching method | en |
dc.subject | HVAC ducts | en |
dc.title | On tuning a reactive silencer by varying the position of an internal membrane | en |
dc.type | Research Paper | en |
dc.identifier.doi | http://dx.doi.org/10.1121/1.2213571 | - |
Appears in Collections: | Publications Dept of Mathematics Research Papers Mathematical Sciences |
Files in This Item:
File | Description | Size | Format | |
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On tuning a reactive silencer by varying the position of an internal membrane.pdf | 659.93 kB | Adobe PDF | View/Open |
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