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

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9 Citations (Scopus)


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
Issue number29
Publication statusPublished - 2018

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