Scaling of attraction force and rolling resistance in DEM with reduced particle stiffness

Washino, Kimiaki; Nakae, Shungo; Yamagami, Ryosuke et al.

Chemical Engineering Research and Design, 2024, 203, 501-519

Number of Access:645（2025-12-11 02:00 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/95385

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Title
Scaling of attraction force and rolling resistance in DEM with reduced particle stiffness
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
Nakae, Shungo
CreatorName
Yamagami, Ryosuke
CreatorName
Chan, Ei L.
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
NRID
1000090171777 1000090171777
researchmap permalink
toshitsugu.tanaka toshitsugu.tanaka
Scopus Author ID
7406728499 7406728499
CreatorName
Tanaka, Toshitsugu
Subject
Attraction force
Calculation speed-up
DEM
Reduced particle stiffness
Rolling resistance
Description
Washino K., Nakae S., Yamagami R., et al. Scaling of attraction force and rolling resistance in DEM with reduced particle stiffness. Chemical Engineering Research and Design 203, 501 (2024); https://doi.org/10.1016/j.cherd.2024.02.006.
Abstract
In Discrete Element Method (DEM), the stiffness of particles is often reduced artificially for calculation speed-up. It is known that the attraction force and rolling resistance should be scaled to counter-balance the excessive energy dissipation caused by prolonged contact duration with reduced stiffness. The present study theoretically derives the scaling laws from dimensionless equations of motion in a generic form, which are for both particle translation and rotation and with multi-body interactions. It is verified that the proposed scaling laws keep the same particle motion in the dimensionless time and space during the contact of more than two particles. It is also demonstrated that the behaviour of the original (stiff) particles in Couette flow can be replicated well in various conditions in general. Some deviation to the original system could be observed in certain conditions, which is likely related to the reduction of contact frequency.
Publisher
Institution of Chemical Engineers
Source Title
Chemical Engineering Research and Design
Volume (Issue)
203
Page
501-519
Date of Issued
2024-03-01
Language
English
Handle URL
https://hdl.handle.net/11094/95385
PISSN
02638762
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1016/j.cherd.2024.02.006
Access Rights
embargoed access
CopyRight
© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
The full-text file will be made open to the public on 1 March 2026 in accordance with the publisher's policy.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article