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

Washino, Kimiaki; Nakae, Shungo; Yamagami, Ryosuke; Chan, Ei L.; Tsuji, Takuya; Tanaka, Toshitsugu

doi:https://doi.org/10.1016/j.cherd.2024.02.006

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

アクセス数:596件（2025-10-24 08:57 集計）

固定URL: https://hdl.handle.net/11094/95385

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タイトル	Scaling of attraction force and rolling resistance in DEM with reduced particle stiffness
著者	NRID 1000010726384 1000010726384 ORCID 0000-0003-1119-1909 0000-0003-1119-1909 researchmap permalink washino washino Scopus Author ID 25655605900 25655605900 著者名 Washino, Kimiaki
	著者名 Nakae, Shungo
	著者名 Yamagami, Ryosuke
	著者名 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 著者名 Tsuji, Takuya
	NRID 1000090171777 1000090171777 researchmap permalink toshitsugu.tanaka toshitsugu.tanaka Scopus Author ID 7406728499 7406728499 著者名 Tanaka, Toshitsugu
キーワード等	Attraction force
	Calculation speed-up
	DEM
	Reduced particle stiffness
	Rolling resistance
内容	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.
抄録	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.
出版者	Institution of Chemical Engineers
収録物名	Chemical Engineering Research and Design
巻(号)	203
ページ	501-519
刊行年月	2024-03-01
言語	英語
ハンドルURL	https://hdl.handle.net/11094/95385
PISSN	02638762
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1016/j.cherd.2024.02.006
アクセス権	embargoed access
権利情報	© 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/
権利情報	The full-text file will be made open to the public on 1 March 2026 in accordance with the publisher's policy.
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Chemical Engineering Research and Design. 2024, 203, p. 501-519
DC.title	Scaling of attraction force and rolling resistance in DEM with reduced particle stiffness
DC.creator	Washino, Kimiaki
	Nakae, Shungo
	Yamagami, Ryosuke
	Chan, Ei L.
	Tsuji, Takuya
	Tanaka, Toshitsugu
DC.publisher	Institution of Chemical Engineers
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-03-01
DC.identifier	https://doi.org/10.1016/j.cherd.2024.02.006
DC.subject	Attraction force
	Calculation speed-up
	DEM
	Reduced particle stiffness
	Rolling resistance
DC.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.
DCTERMS.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.
DC.rights	© 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/
DC.rights	The full-text file will be made open to the public on 1 March 2026 in accordance with the publisher's policy.
DC.format	95385
citation_title	Scaling of attraction force and rolling resistance in DEM with reduced particle stiffness
citation_author	Washino, Kimiaki
	Nakae, Shungo
	Yamagami, Ryosuke
	Chan, Ei L.
	Tsuji, Takuya
	Tanaka, Toshitsugu
citation_publisher	Institution of Chemical Engineers
citation_language	英語
citation_date	2024-03-01
citation_journal_title	Chemical Engineering Research and Design
citation_volume	203
citation_firstpage	501
citation_lastpage	519
citation_doi	https://doi.org/10.1016/j.cherd.2024.02.006
citation_public_url	https://hdl.handle.net/11094/95385

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

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