Document Type
Article
Date
1-1-2001
Keywords
engineering
Disciplines
Chemical Engineering
Description/Abstract
Ensemble-averaged equations are derived for small-amplitude acoustic wave propagation through non-dilute suspensions. The equations are closed by introducing effective properties of the suspension such as the compressibility, density, viscoelasticity, heat capacity, and conductivity. These effective properties are estimated as a function of frequency, particle volume fraction, and physical properties of the individual phases using a self-consistent, effective-medium approximation. The theory is shown to be in excellent agreement with various rigorous analytical results accounting for multiparticle interactions. The theory is also shown to agree well with the experimental data on concentrated suspensions of small polystyrene particles in water obtained by Allegra & Hawley and for glass particles in water obtained in the present study.
Recommended Citation
Sangani, Ashok S.; Spelt, Peter D. M.; Norato, Michael A.; Greenwood, Margaret S.; and Tavarides, Lawrence L., "Attenuation of Sound in Concentrated Suspensions: Theory and Experiments" (2001). Biomedical and Chemical Engineering - All Scholarship. 17.
https://surface.syr.edu/bce/17
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
Additional Information
Copyright 2001 Journal of Fluid Mechanics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and Journal of Fluid Mechanics. The article may be found at http://dx.doi.org/10.1017/S002211200000272X