Anomalies of the boundary reflection of ultrasound from a Maxwellian liquid

Reflection of continuous and pulsed longitudinal and transverse acoustic waves from a dissipative medium represented by a model of Maxwellian liquid in contact with a solid halfspace is considered theoretically. The substantial dependence of the modulus and phase of the reflection coefficient on bot...

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Bibliographic Details
Published in:Journal of engineering physics and thermophysics 2009-05, Vol.82 (3), p.496-503
Main Authors: Kostyuk, D. A., Kuzavko, Yu. A.
Format: Article
Language:English
Subjects:
Acoustics
Boundaries
Classical Mechanics
Complex Systems
Computer programs
Dissipation
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Liquids
Mathematical models
Reflection
Thermodynamics
Transducers
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Summary:Reflection of continuous and pulsed longitudinal and transverse acoustic waves from a dissipative medium represented by a model of Maxwellian liquid in contact with a solid halfspace is considered theoretically. The substantial dependence of the modulus and phase of the reflection coefficient on both the viscosity and time of relaxation of stresses in the Maxwellian liquid is shown. Using computer programs, the acoustic pulsed signals reflected from the interface between the media and transmitted through it have been calculated. The calculations were performed for an asymmetric shape of the signal incident on the interface; this shape corresponds to that of a real signal emitted by an ultrasonic piezoceramic transducer.
ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-009-0228-3