Influence of boundary condition on the sound velocity in granular assembly: Spiral tube versus cylinder

• Published in: Advanced powder technology : the international journal of the Society of Powder Technology, Japan Vol. 34; no. 1; p. 103887
• Main Authors: Chen, Mei, Chen, Xiangui, Li, Chengbo, Gao, Qingqing, Zhao, Chuang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2023
• Subjects: Complex confinement; Discrete element method; Elastic wave velocity; Complex confinement; Elastic wave velocity; Discrete element method

[Display omitted] •A method to determine the contact point between particles is provided.•Spherical and super-ellipsoidal systems in a spiral tube are simulated by DEM.•The sound velocities in a spiral tube are smaller than those in cylinder confinement.•The system properties in a spiral tube are di...