Parallelisation of DEM-LBM using domain decomposition

Jun Li*, Xilin Cui, Andrew Chan, John Bridgeman

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The coupled Discrete Element (DEM) - Lattice Boltzmann Method (LBM) often suffers from the high computational cost due to the fine meshes used. The intrinsic parallel nature of DEM-LBM makes it possible to be applied to the analysis of realistic engineering problems using parallel computer. In this paper the domain decomposition is implemented in the validated coupled DEM-LBM code FPS-BHAM and its performance is tested. A parallel efficiency of 0.72 has been achieved by using 32 processors, which shows a very good parallel behaviour of the DEM-LBM. Besides, the feature of 'pseudo-vector processing capacity' boosts the parallel behaviour of LBM with domain decomposition.

Original languageEnglish
Title of host publicationAdvances in Computational Mechanics
PublisherTrans Tech Publications Inc
Pages531-536
Number of pages6
Volume553
ISBN (Print)9783038350682
DOIs
Publication statusPublished - 2014
Event1st Australasian Conference on Computational Mechanics, ACCM 2013 - Sydney, NSW, Australia
Duration: 3 Oct 20134 Oct 2013

Publication series

NameApplied Mechanics and Materials
Volume553
ISSN (Print)16609336
ISSN (Electronic)16627482

Conference

Conference1st Australasian Conference on Computational Mechanics, ACCM 2013
Country/TerritoryAustralia
CitySydney, NSW
Period3/10/134/10/13

Keywords

  • Discrete element method
  • Domain decomposition
  • Lattice boltazmann method
  • Parallelisation

ASJC Scopus subject areas

  • Engineering(all)

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