Effective viscosity in a wave propagation model for ultrasonic particle sizing in non-dilute suspensions

Al-Lashi, R.S. ORCID: 0000-0002-7775-8181 and Challis, R.E., 2014. Effective viscosity in a wave propagation model for ultrasonic particle sizing in non-dilute suspensions. The Journal of the Acoustical Society of America, 136 (4), pp. 1583-1590. ISSN 0001-4966

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Abstract

Estimates of particle size distributions (PSDs) in solid-in-liquid suspensions can be obtained from measurements of ultrasonic wave attenuation. The technique is based on adaptively fitting theoretical wave propagation models to the measured data across a frequency range. These models break down at high solid concentrations and it is believed that this failure is due to the effective viscosity of the mixture in the vicinity of the particles being different from that of the continuous phase. This paper discusses PSD estimation when a number of different viscosity formulations are incorporated into the wave propagation model. The viscosity model due to Happel provides the best estimate of PSD in suspensions of medium concentration.

Item Type: Journal article
Publication Title: The Journal of the Acoustical Society of America
Creators: Al-Lashi, R.S. and Challis, R.E.
Publisher: AIP Publishing
Date: 2014
Volume: 136
Number: 4
ISSN: 0001-4966
Identifiers:
NumberType
10.1121/1.4894689DOI
Divisions: Schools > School of Science and Technology
Depositing User: Linda Sullivan
Date Added: 14 Mar 2018 13:46
Last Modified: 14 Mar 2018 13:46
URI: http://irep.ntu.ac.uk/id/eprint/32977

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