Reflection and transmission of plane waves from a fluid-porous piezoelectric solid interface

The reflection and transmission of plane waves from a fluid-porous piezoelectric solid interface is studied. The porous piezoelectric solid, having 6 mm symmetry, is supposed to be filled with viscous fluid. The expressions for amplitude ratios and energy ratios corresponding to reflected wave and t...

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Bibliographic Details
Published inThe Journal of the Acoustical Society of America Vol. 129; no. 6; p. 3690
Main Authors Vashishth, Anil K, Gupta, Vishakha
Format Journal Article
LanguageEnglish
Published United States 01.06.2011
Subjects
Acoustics - instrumentation
Anisotropy
Computer Simulation
Energy Transfer
Equipment Design
Models, Theoretical
Motion
Numerical Analysis, Computer-Assisted
Porosity
Sound
Surface Properties
Time Factors
Viscosity
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Summary:The reflection and transmission of plane waves from a fluid-porous piezoelectric solid interface is studied. The porous piezoelectric solid, having 6 mm symmetry, is supposed to be filled with viscous fluid. The expressions for amplitude ratios and energy ratios corresponding to reflected wave and transmitted waves are derived analytically. The Christoffel equation of a leaky wave propagating along the surface of a porous piezoelectric solid is derived. The effects of the angle of incidence, frequency, porosity, piezoelectric interaction, and anisotropy on the reflected and transmitted energy ratios are studied numerically for a particular model BaTiO(3). The porous piezoelectric solid half space is assumed to be loaded with water. The effects of porosity and frequency on the leaky wave velocity are also studied.
ISSN:1520-8524
DOI:10.1121/1.3586792