2024
DOI: 10.1016/j.ces.2023.119387
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A new semi-empirical correlation for estimating settling dynamics of suspensions in viscoelastic shear-thinning fluids

Chukwunonso Anyaoku,
Sati Bhattacharya,
Rajarathinam Parthasarathy
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Cited by 2 publications
(11 citation statements)
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“…This plot—referred to here as the 'concentration reduction rate' (CRR)—was indicative of when particles at the sample depth experienced a change in their settling velocities within short time spans. As explained in the preliminary reference study, 15 for a sufficiently short window of observation, an increasing CRR (or an increase in the rate of solids concentration drop) indicates the settling particle experienced an acceleration, which in turn suggests that particle chaining was occurring, helping to increase the settling rates of particles. The converse of the prior mentioned scenario would suggest the particle was decelerating as particle chains broke down.…”
Section: Resultsmentioning
confidence: 81%
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“…This plot—referred to here as the 'concentration reduction rate' (CRR)—was indicative of when particles at the sample depth experienced a change in their settling velocities within short time spans. As explained in the preliminary reference study, 15 for a sufficiently short window of observation, an increasing CRR (or an increase in the rate of solids concentration drop) indicates the settling particle experienced an acceleration, which in turn suggests that particle chaining was occurring, helping to increase the settling rates of particles. The converse of the prior mentioned scenario would suggest the particle was decelerating as particle chains broke down.…”
Section: Resultsmentioning
confidence: 81%
“…XGS represents the carrier fluid, which simulates the fraction of industrial mixtures that contain fine particles (<38μm) that are too small to settle and can affect the rheology of the carrier fluid. However, the range of XGS concentrations in this study was limited to 0.3‐0.375 wt% because, in the reference study by Anyaoku et al, 15 upon which the sheared settling model would be built, fluids with higher concentrations of XGS exhibited longer settling times which generated amounts of data that could not fit into a single Microsoft Excel datasheet. The density of each xanthan gum solution was approximated as the density of water (1.0 g/cm 3 ) due to their low xanthan gum content.…”
Section: Methodsmentioning
confidence: 98%
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