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A class of particulate problems suited to FDEM requiring accurate simulation of shape effects in packed granular structures

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Title: A class of particulate problems suited to FDEM requiring accurate simulation of shape effects in packed granular structures
Authors: Latham, J-P
Xiang, J
Farsi, A
Joulin, C
Karantzoulis, N
Item Type: Journal Article
Abstract: In many granular material simulation applications, DEM capability is focused on the dynamic solid particulate flow properties and on systems in which millions of particles are involved. The time of relevance is many seconds or even minutes of real time. Simplifying assumptions are made to achieve run completion in practical timescales. There are certain applications, typically involving manufactured particles, where a representative pack is of the order of a thousand particles. More accurate capturing of the influence of complex shape is then often possible. Higher accuracies are necessary to model the topology of the void space, for example, for further CFD simulation and optimisation of fluid flow properties. Alternatively, the accuracy may be critical for structural performance and the force or stress transmission through the contact points is to be controlled to avoid material damage and poor function. This paper briefly summarises methods for simulation of shape effects on packing structures in the granular community and narrows the scope to problems where shape effects are of overriding concern. Two applications of mono-sized, mono-shaped packing problems are highlighted: catalyst support pellets in gas reforming and concrete armour units in breakwater structures. The clear advantages of FDEM for complex-shaped particle interactions in packed systems with relatively few particles are discussed. A class of particulate problems, ‘FDEM-suited’ problems, ones that are ideal to be solved by FDEM rather than by DEM, is proposed for science and engineering use.
Issue Date: 1-Oct-2020
Date of Acceptance: 14-Oct-2019
URI: http://hdl.handle.net/10044/1/75135
DOI: 10.1007/s40571-019-00294-5
ISSN: 2196-4378
Publisher: Springer Science and Business Media LLC
Start Page: 975
End Page: 986
Journal / Book Title: Computational Particle Mechanics
Volume: 7
Copyright Statement: © 2019 The Authors. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativeco mmons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Concrete Layer Innovations
Technological Resources PTY Ltd
Artelia Eau Environnment
Exxon Mobil Upstream Research Company
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (E
Natural Environment Research Council (NERC)
Johnson Matthey plc
Commission of the European Communities
European Commission
Engineering & Physical Science Research Council (E
Institution of Civil Engineers
Johnson Matthey
Funder's Grant Number: GR/S42699/01
CLI/AKA/587
N/A
N/A
itf-ISF-3
EP/H030123/1
EP/K503733/1
NE/L000660/1
12220379
654662
654662
EP/R511547/1
1604
Keywords: Science & Technology
Physical Sciences
Technology
Mathematics, Interdisciplinary Applications
Mechanics
Mathematics
FDEM
Numerical simulation
Particle packing
Catalyst pellets
Concrete armour units
Concave shape
Non-spherical shape
3-DIMENSIONAL FRACTURE MODEL
THEORETICAL DEVELOPMENTS
NUMERICAL-SIMULATION
PARTICLE-SYSTEMS
DISCRETE
PACKING
ALGORITHM
DEM
REPRESENTATION
DYNAMICS
Publication Status: Published
Open Access location: http://link.springer.com/article/10.1007/s40571-019-00294-5
Online Publication Date: 2019-11-23
Appears in Collections:Faculty of Engineering
Earth Science and Engineering



This item is licensed under a Creative Commons License Creative Commons