Modelling the multiphase flow in hydrocyclones using Coarse-grained VOF-DEM and Mixture-DEM approaches

Li Ji, Kaiwei Chu, Shibo Kuang, Jiang Chen, Aibing Yu

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Hydrocyclones are widely used in various industries to classify particles mainly by size. In this work, two numerical models are developed to model the multiphase flow in hydrocyclones: one is a combined approach of volume of fluid (VOF) model and discrete element method (DEM) with the concept of the coarse-grained (CG) particle (CG VOF-DEM); the other is a combined approach of the Mixture model and DEM model with the CG concept (CG Mixture-DEM). The simulation results show that the CG VOF-DEM model is quantitatively applicable to relatively dilute flows while only qualitatively applicable to dense flows. On the other hand, the CG Mixture-DEM model can be quantitatively applicable to both dilute and dense flows. The work suggests that the CG Mixture-DEM approach could be a useful tool to estimate the performance of hydrocyclones.

Original languageEnglish
Pages (from-to)9641–9655
Number of pages15
JournalIndustrial and Engineering Chemistry Research
Volume57
Issue number29
DOIs
Publication statusPublished - 2018

Cite this

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title = "Modelling the multiphase flow in hydrocyclones using Coarse-grained VOF-DEM and Mixture-DEM approaches",
abstract = "Hydrocyclones are widely used in various industries to classify particles mainly by size. In this work, two numerical models are developed to model the multiphase flow in hydrocyclones: one is a combined approach of volume of fluid (VOF) model and discrete element method (DEM) with the concept of the coarse-grained (CG) particle (CG VOF-DEM); the other is a combined approach of the Mixture model and DEM model with the CG concept (CG Mixture-DEM). The simulation results show that the CG VOF-DEM model is quantitatively applicable to relatively dilute flows while only qualitatively applicable to dense flows. On the other hand, the CG Mixture-DEM model can be quantitatively applicable to both dilute and dense flows. The work suggests that the CG Mixture-DEM approach could be a useful tool to estimate the performance of hydrocyclones.",
author = "Li Ji and Kaiwei Chu and Shibo Kuang and Jiang Chen and Aibing Yu",
year = "2018",
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pages = "9641–9655",
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Modelling the multiphase flow in hydrocyclones using Coarse-grained VOF-DEM and Mixture-DEM approaches. / Ji, Li; Chu, Kaiwei; Kuang, Shibo; Chen, Jiang; Yu, Aibing.

In: Industrial and Engineering Chemistry Research, Vol. 57, No. 29, 2018, p. 9641–9655.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Modelling the multiphase flow in hydrocyclones using Coarse-grained VOF-DEM and Mixture-DEM approaches

AU - Ji, Li

AU - Chu, Kaiwei

AU - Kuang, Shibo

AU - Chen, Jiang

AU - Yu, Aibing

PY - 2018

Y1 - 2018

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AB - Hydrocyclones are widely used in various industries to classify particles mainly by size. In this work, two numerical models are developed to model the multiphase flow in hydrocyclones: one is a combined approach of volume of fluid (VOF) model and discrete element method (DEM) with the concept of the coarse-grained (CG) particle (CG VOF-DEM); the other is a combined approach of the Mixture model and DEM model with the CG concept (CG Mixture-DEM). The simulation results show that the CG VOF-DEM model is quantitatively applicable to relatively dilute flows while only qualitatively applicable to dense flows. On the other hand, the CG Mixture-DEM model can be quantitatively applicable to both dilute and dense flows. The work suggests that the CG Mixture-DEM approach could be a useful tool to estimate the performance of hydrocyclones.

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DO - 10.1021/acs.iecr.8b01699

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JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

SN - 0888-5885

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