タナカ　トシツグ   Toshitsugu Tanaka   田中　敏嗣    所属   追手門学院大学  理工学部 機械工学科    職種   教授
言語種別	英語
発行・発表の年月	2024/11/01
形態種別	論文
査読	査読あり
標題	DEM analysis of cohesive granular shear flow using dynamic adhesion force model – Model validation for contact-dominated regime
執筆形態	代表編著
掲載誌名	Powder Technology
巻・号・頁	447
担当区分	筆頭著者,責任著者
著者・共著者	Toshitsugu Tanaka,Seiya Tanaka,Kimiaki Washino,Takuya Tsuji
概要	When the DEM simulations are performed, the particle stiffness of the Discrete Element Method (DEM) is often reduced to reduce the computational cost. The Dynamic Adhesion/Cohesion Force Model (DAFM/DCFM) was proposed for adhesive/cohesive particles to make the effect of adhesion/cohesion force on the collisional motion of a particle with a reduced particle stiffness equivalent to that of the original system. This study validates the applicability of DCFM to the contact-dominated regime by means of a series of DEM simulations of two-dimensional simple shear flow of cohesive spherical particles. The results demonstrate that DCFM accurately represents the cohesive nature of the original system with respect to the fluid-to-solid phase transition of granular medium due to a reduction in shear rate, as well as the shear stress of the granular medium. It is demonstrated that the bond-breaking model proposed in the present study describes well the validity of DCFM in the contact-dominated regime.
DOI	10.1016/j.powtec.2024.120198
ISSN	0032-5910/1873-328X
researchmap用URL	https://doi.org/10.1016/j.powtec.2024.120198