Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8496
Title: Calculation of duct flow noise using CE/SE method
Authors: Chan, HYH
Lam, GCY
Leung, RCK 
Keywords: CE/SE
Duct noise
Liner
Issue Date: 2014
Publisher: Australian Acoustical Society
Source: INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, 2014 How to cite?
Abstract: Noise generated in flow duct propagates extensively through the connected ductwork. Its propagation through the outlets would contribute to indoor acoustic discomfort and results in environmental problem. Silencers with acoustic lining are commonly adopted for noise mitigation in flow duct. Researchers have been devoting many numerical efforts in assessing the performance of a liner design. In general, numerical studies are performed by either time domain or frequency domain approach. This paper reports a development of calculation method solving Acoustic Perturbation Equations and Time-Domain Impedance Boundary on the Conservation Element and Solution Element (CE/SE) framework to calculate duct noise problem in time domain. In this paper, three benchmark cases are presented to verify the capability of the proposed method on calculating the flow induced acoustic generation, propagation, and the acoustic behavior at the impedance boundaries in the presence and absence of flow.
Description: 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014, Melbourne, 16-19 November 2014
URI: http://hdl.handle.net/10397/8496
ISBN: 9.78E+12
Appears in Collections:Conference Paper

Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

57
Last Week
6
Last month
Checked on Sep 24, 2017

Google ScholarTM

Check



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.