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Parallelisation of DEM-LBM using domain decomposition

Citation

Li, J and Cui, X and Chan, A and Bridgeman, J, Parallelisation of DEM-LBM using domain decomposition, Applied Mechanics and Materials, 553 pp. 531-536. ISSN 1660-9336 (2014) [Non Refereed Article]


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DOI: doi:10.4028/www.scientific.net/AMM.553.531

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.

Item Details

Item Type:Non Refereed Article
Keywords:parallelisation, discrete element method, lattice Boltazmann method, domain decomposition
Research Division:Engineering
Research Group:Civil Engineering
Research Field:Civil Geotechnical Engineering
Objective Division:Construction
Objective Group:Construction Processes
Objective Field:Civil Construction Processes
Author:Chan, A (Professor Andrew Chan)
ID Code:103314
Year Published:2014
Deposited By:Office of the School of Engineering
Deposited On:2015-10-03
Last Modified:2015-10-05
Downloads:0

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