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Discrete particle simulation of gas-solid flow in a cyclone separator

  • K. W. Chu
  • , B. Wang
  • , A. B. Yu
  • , D. L. Xu
  • , Y. X. Chen
  • University of New South Wales
  • Xi'an University of Architecture and Technology

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

Abstract

Gas cyclones are widely used in industries to separate solids from gas stream. It is well known that solids loading will significantly affect the performance of gas cyclones. In this work, a numerical study of the gas-solid flow in a gas cyclone at different solid loadings is carried out by means of Combined Continuum and Discrete Method (CCDM). In the CCDM, the motion of discrete particles is obtained by Discrete Element Method (DEM) which applies Newton's laws of motion to every particle and the flow of continuum fluid is described by the local averaged Navier-Stokes equations that can be solved by the traditional Computational Fluid Dynamics (CFD). The model successfully generated the strands flow pattern of solids that is typical in gas cyclones. The simulated pressure drop under different solid loadings agreed with experimental measurement quantitatively. It is predicted that the reaction force of solids on gas phase caused the decrease of the tangential velocity of gas phase and thus the decrease of pressure drop.

Original languageEnglish
Title of host publication6th International Symposium on Multiphase flow, Heat Mass Transfer and Energy Conversion
Pages569-574
Number of pages6
DOIs
StatePublished - 2010
Event6th International Symposium on Multiphase flow, Heat Mass Transfer and Energy Conversion - Xian, China
Duration: 11 Jul 200915 Jul 2009

Publication series

NameAIP Conference Proceedings
Volume1207
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference6th International Symposium on Multiphase flow, Heat Mass Transfer and Energy Conversion
Country/TerritoryChina
CityXian
Period11/07/0915/07/09

Keywords

  • Computational fluid dynamics
  • Cyclone
  • Discrete element method
  • Gas-solids flow

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