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Wave propagation in a constrained fluid layer bounded by an elastic half-space and its relevance in cochlear micromechanics

Wave propagation in a constrained fluid layer bounded by an elastic half-space and its relevance in cochlear micromechanics
Wave propagation in a constrained fluid layer bounded by an elastic half-space and its relevance in cochlear micromechanics
Wave propagation is investigated in a thin fluid layer bound by a rigid surface and an elastic half-space. Slow waves are possible if the fluid gap is small compared with the wavelength of the Rayleigh wave in the elastic half-space. The relevance of such a wave in cochlear micromechanics is discussed, which leads to the incorporation of the fluid viscosity and elastic loss into the wave equation. For typical parameters in the cochlea, the wave is dominated by the stiffness of the elastic half-space and the viscosity of the fluid, decaying significantly within a wavelength.
0022-460X
918-924
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567

Elliott, Stephen J. (2007) Wave propagation in a constrained fluid layer bounded by an elastic half-space and its relevance in cochlear micromechanics. Journal of Sound and Vibration, 305 (4-5), 918-924. (doi:10.1016/j.jsv.2007.04.040).

Record type: Article

Abstract

Wave propagation is investigated in a thin fluid layer bound by a rigid surface and an elastic half-space. Slow waves are possible if the fluid gap is small compared with the wavelength of the Rayleigh wave in the elastic half-space. The relevance of such a wave in cochlear micromechanics is discussed, which leads to the incorporation of the fluid viscosity and elastic loss into the wave equation. For typical parameters in the cochlea, the wave is dominated by the stiffness of the elastic half-space and the viscosity of the fluid, decaying significantly within a wavelength.

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More information

Submitted date: 5 December 2006
Published date: September 2007

Identifiers

Local EPrints ID: 49267
URI: http://eprints.soton.ac.uk/id/eprint/49267
ISSN: 0022-460X
PURE UUID: ee4eb97b-da5e-419e-a4d6-61d766d011dd

Catalogue record

Date deposited: 26 Oct 2007
Last modified: 15 Mar 2024 09:54

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