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


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
Number of pages6
ISBN (Print)9783038350682
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
ISSN (Print)16609336
ISSN (Electronic)16627482


Conference1st Australasian Conference on Computational Mechanics, ACCM 2013
CitySydney, NSW


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

ASJC Scopus subject areas

  • General Engineering


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