Article (Scientific journals)
A parallel dual-grid multiscale approach to CFD-DEM couplings
Pozzetti, Gabriele; Jasak, Hrvoje; Besseron, Xavier et al.
2019In Journal of Computational Physics, 378, p. 708-722
Peer Reviewed verified by ORBi
 

Files


Full Text
Article_final.pdf
Publisher postprint (2.32 MB)
Request a copy

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
Parallel Interpolation; Dual-Grid multiscale CFD-DEM; Parallel Performance
Abstract :
[en] In this work, a new parallel dual-grid multiscale approach for CFD-DEM couplings is investigated. Dual- grid multiscale CFD-DEM couplings have been recently developed and successfully adopted in different applications still, an efficient parallelization for such a numerical method represents an open issue. Despite its ability to provide grid convergent solutions and more accurate results than standard CFD-DEM couplings, this young numerical method requires good parallel performances in order to be applied to large-scale problems and, therefore, extend its range of application. The parallelization strategy here proposed aims to take advantage of the enhanced complexity of a dual-grid coupling to gain more flexibility in the domain partitioning while keeping a low inter-process communication cost. In particular, it allows avoiding inter- process communication between CFD and DEM software and still allows adopting complex partitioning strategies thanks to an optimized grid-based communication. It is shown how the parallelized multiscale coupling holds all its natural advantages over a mono-scale coupling and can also have better parallel performance. Three benchmark cases are presented to assess the accuracy and performance of the strategy. It is shown how the proposed method allows maintaining good parallel performance when operated over 1000 processes.
Disciplines :
Computer science
Author, co-author :
Pozzetti, Gabriele ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Jasak, Hrvoje;  University of Zagreb
Besseron, Xavier  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Rousset, Alban ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Peters, Bernhard ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
External co-authors :
yes
Language :
English
Title :
A parallel dual-grid multiscale approach to CFD-DEM couplings
Publication date :
February 2019
Journal title :
Journal of Computational Physics
ISSN :
1090-2716
Publisher :
Elsevier, Atlanta, Georgia
Volume :
378
Pages :
708-722
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Computational Sciences
Name of the research project :
Dual-Grid-CFD-DEM
Available on ORBilu :
since 17 August 2018

Statistics


Number of views
161 (28 by Unilu)
Number of downloads
8 (8 by Unilu)

Scopus citations®
 
18
Scopus citations®
without self-citations
16
OpenCitations
 
13
WoS citations
 
18

Bibliography


Similar publications



Contact ORBilu