Non-Newtonian thickened tailings slurry flow through open channels

Javadi, S, Gupta, R, Slatter, P and Bhattacharya, S 2017, 'Non-Newtonian thickened tailings slurry flow through open channels', International Journal of Mining and Mineral Engineering, vol. 8, no. 4, pp. 310-333.

Document type: Journal Article
Collection: Journal Articles

Title Non-Newtonian thickened tailings slurry flow through open channels
Author(s) Javadi, S
Gupta, R
Slatter, P
Bhattacharya, S
Year 2017
Journal name International Journal of Mining and Mineral Engineering
Volume number 8
Issue number 4
Start page 310
End page 333
Total pages 24
Publisher Inderscience Publishers
Abstract Flow of non-Newtonian thickened tailings suspensions is experimentally studied. The testwork was carried out with typical mining tailings and kaolin suspensions of varying concentration in the laminar, transitional and turbulent regimes. The experimental investigation used a 100-mm wide and 4.8-m long rectangular channel which was geometrically and dynamically similar to a full-scale industrial channel. It is shown that, contrary to the previous findings, the critical Reynolds number, at which the flow conditions change from the laminar to transitional, can be as high as that for the Newtonian fluids (2000-3000). Nevertheless, the results still support the argument that with an increase in the apparent viscosity, the transitional flow emerges at lower Reynolds number. In addition, the current study experimental results along with previously published data-sets (Burger, 2014; Haldenwang and Slatter, 2006) are used to validate various open channel design models using combined Root-Sum-Square (RSS) values. © 2017 Inderscience Enterprises Ltd.
Subject Chemical Engineering not elsewhere classified
Materials Engineering not elsewhere classified
Keyword(s) Non-Newtonian
Open channel
Thickened tailings
DOI - identifier 10.1504/IJMME.2017.087966
Copyright notice © 2017 Inderscience Enterprises Ltd.
ISSN 1754-890X
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