On DEM simulation of loose packing behaviour of fine and cohesive particles

Washino, Kimiaki; Chan, Ei L.; Faroux, Dorian et al.

Advanced Powder Technology, 2025, 36(3), 104809

Number of Access:371（2025-09-03 06:03 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/101299

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
AdvPowderTechnol_36_3 pdf None 5.46 MB 32 2025.05.13  
Creative Commons : Attribution

Item Information

Output File Export EndNote Basic Export Mendeley

Title
On DEM simulation of loose packing behaviour of fine and cohesive particles
Creator
NRID
1000010726384 1000010726384
ORCID
0000-0003-1119-1909 0000-0003-1119-1909
researchmap permalink
washino washino
Scopus Author ID
25655605900 25655605900
CreatorName
Washino, Kimiaki
CreatorName
Chan, Ei L.
CreatorName
Faroux, Dorian
NRID
1000090379123 1000090379123
ORCID
0000-0001-6366-2923 0000-0001-6366-2923
researchmap permalink
tsuji.takuya tsuji.takuya
Scopus Author ID
37019391700 37019391700
CreatorName
Tsuji, Takuya
CreatorName
Takahashi, Tatsuya
CreatorName
Sasabe, Shuji
Subject
DEM
Fine and cohesive particles
JKR surface adhesion force
Non-bonded van der Waals force
Loose packing behaviour
Description
Washino K., Chan E.L., Faroux D., et al. On DEM simulation of loose packing behaviour of fine and cohesive particles. Advanced Powder Technology 36, 104809 (2025); https://doi.org/10.1016/j.apt.2025.104809.
Abstract
While Discrete Element Method (DEM) is widely used to simulate fine and cohesive granular materials, accurately capturing real-life packing behaviour requires further investigation on the (i) types of attraction forces and (ii) cluster formation during free fall. In the present study, simulations of various scenarios have been performed to investigate the impacts of particle insertion methods on the resultant packing fraction. The results suggest that the introduction of initial vertical velocity fluctuations during stream insertion can lead to consistent formation of clusters of free falling particles, which is a key factor for achieving loose packing of cohesive particles. We then tested and compared two commonly used attraction force models: the JKR surface adhesion force and non-bonded van der Waals force models. It is revealed that the packing fractions and coordination numbers of the final beds are comparable across different attraction force models as long as the following two conditions are met at the same time: (i) the surface energy density is adjusted (by approximately 2.6 times) to match the total potential energy between a pair of particles and (ii) the initial vertical velocity fluctuations are assigned to form particle clusters during free fall.
Publisher
Elsevier B.V.
Source Title
Advanced Powder Technology
Volume (Issue)
36(3)
Page
104809
Date of Issued
2025-02-05
Language
English
Handle URL
https://hdl.handle.net/11094/101299
PISSN
09218831
eISSN
15685527
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1016/j.apt.2025.104809
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article