Scattering of an ultrasonic beam from a curved interface
type: Item
instance of: scholarly article
title: Scattering of an ultrasonic beam from a curved interface
zbMATH Open document ID: 0693.76115
DOI: 10.1016/0165-2125(89)90043-7
author: Hyung-Chul Choi
author: John G. Harris
published in: Wave Motion
publication date: 1989-01-01T00:00:00Z
review text: We calculate the wavefield scattered from a circular fluid-solid interface when it is struck by a well collimated ultrasonic beam, emitted from a transducer in the fluid. Both convex and concave interfaces are considered. The radius of curvature of the interface is assumed to be sufficiently large that only reflection, transmission and the excitation of a leaky Rayleigh wave need be considered; the incident beam does not graze the interface. The incident beam is modeled as a two-dimensional wavefield whose initial profile is either Gaussian or rectangular. In both cases the aperture is assumed to be many wavelengths across and the interface close enough to the aperture that it is struck by a wavefield that has not yet evolved into a cylindrical wave. The scattered wavefields are represented as multiple contour interals and are evaluated asymptotically.
Mathematics Subject Classification ID: 76K05
Mathematics Subject Classification ID: 76Q05
Mathematics Subject Classification ID: 76M99
zbMATH DE Number: 4135647
zbMATH Keywords: circular fluid-solid interface
zbMATH Keywords: well collimated ultrasonic beam
zbMATH Keywords: leaky Rayleigh wave
MaRDI profile type: Publication
full work available at URL: 0165-2125(89)90043-7
OpenAlex ID: W1994530288
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description: scientific article; zbMATH DE number 4135647