Determination of particle size distributions from acoustic wave propagation measurements
- Department of Chemical Engineering and Materials Science, Syracuse University, Syracuse, New York 13244 (United States)
The wave equations for the interior and exterior of the particles are ensemble averaged and combined with an analysis by Allegra and Hawley [J. Acoust. Soc. Am. {bold 51}, 1545 (1972)] for the interaction of a single particle with the incident wave to determine the phase speed and attenuation of sound waves propagating through dilute slurries. The theory is shown to compare very well with the measured attenuation. The inverse problem, i.e., the problem of determining the particle size distribution given the attenuation as a function of frequency, is examined using regularization techniques that have been successful for bubbly liquids. It is shown that, unlike the bubbly liquids, the success of solving the inverse problem is limited since it depends strongly on the nature of particles and the frequency range used in inverse calculations. {copyright} {ital 1999 American Institute of Physics.}
- OSTI ID:
- 336670
- Journal Information:
- Physics of Fluids (1994), Vol. 11, Issue 5; Other Information: PBD: May 1999
- Country of Publication:
- United States
- Language:
- English
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