Measuring particle concentration in multiphase pipe flow using acoustic backscatter: Generalization of the dual-frequency inversion method

Rice, Hugh P., Fairweather, Michael, Hunter, Timothy N., Mahmoud, Bashar, Biggs, Simon and Peakall, Jeff (2014) Measuring particle concentration in multiphase pipe flow using acoustic backscatter: Generalization of the dual-frequency inversion method. Journal of the Acoustical Society of America, 136 1: 156-169. doi:10.1121/1.4883376

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Author Rice, Hugh P.
Fairweather, Michael
Hunter, Timothy N.
Mahmoud, Bashar
Biggs, Simon
Peakall, Jeff
Title Measuring particle concentration in multiphase pipe flow using acoustic backscatter: Generalization of the dual-frequency inversion method
Journal name Journal of the Acoustical Society of America   Check publisher's open access policy
ISSN 0001-4966
1520-8524
Publication date 2014-07-01
Year available 2014
Sub-type Article (original research)
DOI 10.1121/1.4883376
Open Access Status File (Publisher version)
Volume 136
Issue 1
Start page 156
End page 169
Total pages 14
Place of publication College Park, United States
Publisher Acoustical Society of America
Collection year 2015
Language eng
Formatted abstract
A technique that is an extension of an earlier approach for marine sediments is presented for determining the acoustic attenuation and backscattering coefficients of suspensions of particles of arbitrary materials of general engineering interest. It is necessary to know these coefficients (published values of which exist for quartz sand only) in order to implement an ultrasonic dual-frequency inversion method, in which the backscattered signals received by transducers operating at two frequencies in the megahertz range are used to determine the concentration profile in suspensions of solid particles in a carrier fluid. To demonstrate the application of this dual-frequency method to engineering flows, particle concentration profiles are calculated in turbulent, horizontal pipe flow. The observed trends in the measured attenuation and backscatter coefficients, which are compared to estimates based on the available quartz sand data, and the resulting concentration profiles, demonstrate that this method has potential for measuring the settling and segregation behavior of real suspensions and slurries in a range of applications, such as the nuclear and minerals processing industries, and is able to distinguish between homogeneous, heterogeneous, and bed-forming flow regimes.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Faculty of Engineering, Architecture and Information Technology Publications
Non HERDC
 
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