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Title: Acoustic propagation in 3-D, rectangular ducts with flexible walls
Authors: Lawrie, JB
Issue Date: 2010
Publisher: Institute of Noise Control Engineering of USA
Citation: INCE Conference Proceedings, 220(1): 1930-1938, Apr 2010
Abstract: In this article some analytic expressions for acoustic propagation in 3-D ducts of rectangular cross-section and with flexible walls are explored. Consideration is first given to the propagation of sound in an unlined 3-D duct formed by three rigid walls and closed by a thin elastic plate. An exact closed form expression for the fluid-structure coupled waves is presented. The effect of incorporating internal structures, such as a porous lining, into the duct is also discussed. Such configurations are directly relevant to the heating, ventilation and airconditioning industry.
Description: This article is posted here with the permission of the publishers, INCE/USA. Personal use of the material is permitted,; however, permission to reprint or republish any part of this article must be obtained from the publisher.
Appears in Collections:Dept of Mathematics Research Papers
Mathematical Sciences

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