1. bookVolume 69 (2021): Issue 3 (September 2021)
Journal Details
License
Format
Journal
First Published
28 Mar 2009
Publication timeframe
4 times per year
Languages
English
access type Open Access

Modelling vertical concentration distributions of solids suspended in turbulent visco-plastic fluid

Published Online: 10 Aug 2021
Page range: 255 - 262
Received: 06 Mar 2021
Accepted: 11 May 2021
Journal Details
License
Format
Journal
First Published
28 Mar 2009
Publication timeframe
4 times per year
Languages
English
Abstract

Vertical concentration distributions of solids conveyed in Newtonian fluids can be modelled using Rouse-Schmidt type distributions. Observations of solids conveyed in turbulent low Reynolds number visco-plastic carriers, suggest that solids are more readily suspended than their Newtonian counterparts, producing higher concentrations in the centre of the pipe. A Newtonian concentration profile model was adapted to include typical turbulent viscosity distributions within the pipe and particle motion calculated using non-Newtonian sheared settling. Predictions from this and the unmodified model, using the same wall viscosity, are compared with the chord averaged profile extracted from tomographic data obtained using a 50 mm horizontal pipe.

Keywords

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