Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/8338
Title: Scattering of a fluid-structure coupled wave at a flanged junction between two flexible waveguides
Authors: Nawaz, R
Lawrie, JB
Keywords: Boundary value problems;Acoustic noise control;Linear equations;Numerical solutions;Duct flows
Issue Date: 2013
Publisher: The Acoustical Society of America
Citation: Journal of the Acoustical Society of America, 134(3), 1939 - 1949, 2013
Abstract: The scattering of a fluid-structure coupled wave at a flanged junction between two flexible waveguides is investigated. The flange is assumed to be rigid on one side and soft on the other; this enables a solution to be formulated using mode-matching. It is shown that both the choice of the edge conditions imposed on the plates at the junction and the choice of incident forcing significantly affect the transmission of energy along the duct. In particular, the edge conditions crucially affect the transmission of structure-borne vibration but have little effect on fluid-borne noise. Given the singular nature of the velocity field at the flange tip, particular attention is paid to the validity of the mode-matching method. It is demonstrated that the velocity field can be accurately reconstructed by incorporating the Lanczos filter into the truncated modal expansions. The mode-matching method is thus confirmed as an viable tool for this class of problem.
Description: Copyright 2013 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in the Journal of the Acoustical Society of America, 134(3), 1939 - 1949 and may be found at http://scitation.aip.org/content/asa/journal/jasa/134/3/10.1121/1.4817891.
URI: http://scitation.aip.org/content/asa/journal/jasa/134/3/10.1121/1.4817891
http://bura.brunel.ac.uk/handle/2438/8338
DOI: http://dx.doi.org/10.1121/1.4817891
ISSN: 0001-4966
Appears in Collections:Publications
Dept of Mathematics Research Papers
Mathematical Sciences

Files in This Item:
File Description SizeFormat 
Fulltext.pdf450.15 kBAdobe PDFView/Open


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