An Investigation into the applicability of the lattice boltzmann method to modelling of the flow in a hydrocyclone

M. Bhamjee, S. H. Connell, A. L. Nel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The lattice Boltzmann method has gained popularity as a method for simulating fluid flow, particularly multiphase flow. Thus, it has potential in simulating fluid flow in hydrocyclones. While research on the method and its' application to multiphase flow is mature, there is sparse research on its' application to hydrocyclones. An overview of the literature on the use of the lattice Boltzmann method for simulating fluid flow in hydrocyclones is presented. A lattice Boltzmann model of single phase flow in a hydrocyclone is presented, which is compared to predictions from a Navier-Stokes based model. The lattice Boltzmann model predicts lower velocities than the Navier-Stokes model in certain areas of the hydrocyclone and higher velocities in other areas. In some areas both models are in close agreement. The lattice Boltzmann model predicts the low pressure region at the underflow and overflow. However, it does not display the low pressure region in the core of the hydrocyclone. It is proposed that these differences are related to the use of the single relaxation time implementation of the lattice Boltzmann method. The possible solution is to use the multiple relaxation time model which is more suitable to high-Reynolds number flows.

Original languageEnglish
Title of host publication9th South African Conference on Computational and Applied Mechanics, SACAM 2014
PublisherSouth African Association for Theoretical and Applied Mechanics (SAAM)
ISBN (Electronic)9780620589949
Publication statusPublished - 2014
Event9th South African Conference on Computational and Applied Mechanics, SACAM 2014 - Somerset West, South Africa
Duration: 14 Jan 201416 Jan 2014

Publication series

Name9th South African Conference on Computational and Applied Mechanics, SACAM 2014

Conference

Conference9th South African Conference on Computational and Applied Mechanics, SACAM 2014
Country/TerritorySouth Africa
CitySomerset West
Period14/01/1416/01/14

Keywords

  • Air-Core
  • CFD
  • Hydrocyclone
  • LBM
  • LES
  • Multiphase

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanical Engineering

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