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Sound Wave Propagation In A Two-dimensional Flexible Duct In The Presence Of An Inviscid Flow

โœ Scribed by S.H. Ko

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
257 KB
Volume
175
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

An investigation is made of the phase velocity of the sound wave propagating in a two-dimensional flexible duct that carries a uniform flow. The flexible duct considered herein is composed of two parallel, thin elastic plates. The outer surfaces of the duct are in contact with a stationary fluid medium and its inside contains a uniform fluid flow. An eigenvalue problem is formulated for a two-dimensional flexible duct by satisfying pertinent boundary conditions across the fluid-plate interfaces. The sound pressure inside the duct is a summation of partial wave pressures, each of which is associated with a wave mode having its own phase velocity.

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