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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/11085

Title: Acoustic scattering by a spherical obstacle: modification to the analytical long-wavelength solution for the zero-order coefficient
Authors: Pinfield, Valerie J.
Challis, Richard E.
Keywords: Emulsions
Ultrasonic absorption
Ultrasonic scattering
Issue Date: 2011
Publisher: © Acoustical Society of America
Citation: PINFIELD, V.J. and CHALLIS, R.E., 2011. Acoustic scattering by a spherical obstacle: modification to the analytical long-wavelength solution for the zero-order coefficient. Journal of the Acoustical Society of America, 129 (4), pp.1851-1856.
Abstract: Classical long wavelength approximate solutions to the scattering of acoustic waves by a spherical liquid particle suspended in a liquid (an emulsion) show small but significant differences from full solutions at very low kca (typically kca < 0.01) and above at kca > 0.1, where kc is the compressional wavenumber and a the particle radius. These differences may be significant in the context of dispersed particle size estimates based on compression wave attenuation measurements. This paper gives an explanation of how these differences arise from approximations based on the significance of terms in the modulus of the complex zero-order partial wave coefficient, A0. It is proposed that a more accurate approximation results from considering the terms in the real and imaginary parts of the coefficient, separately.
Description: This article was published in the Journal of the Acoustical Society of America and is also available at: http://dx.doi.org/10.1121/1.3543967
Version: Published
URI: https://dspace.lboro.ac.uk/2134/11085
Publisher Link: http://dx.doi.org/10.1121/1.3543967
http://asadl.org/jasa/
ISSN: 0001-4966
Appears in Collections:Published Articles (Chemical Engineering)

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