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Air impact induced densest amorphous granular materials: Formation, dynamics, and mechanisms

Wei Fan1, Dazhao Gou1,2, Xiaohan Liu1, Meng Li1, Xizhong An1,*, Kejun Dong3, Ruiping Zou4, Hao Zhang1, Haitao Fu1 et al.

Xiaohong Yang1 and Qingchuan Zou1

  • 1Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of Education, School of Metallurgy, Northeastern University, Shenyang 110819, People's Republic of China
  • 2School of Materials Science and Engineering, University of New South Wales, Sydney 2052, Australia
  • 3Center for Infrastructure Engineering, Western Sydney University, Penrith 2751, New South Wales, Australia
  • 4Department of Chemical Engineering, ARC Hub for Computational Particle Technology, Monash University, Victoria 3800, Australia

  • *Corresponding author: anxz@mail.neu.edu.cn
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Phys. Rev. B 105, L020202 – Published 26 January, 2022

DOI: https://doi.org/10.1103/PhysRevB.105.L020202

Abstract

The formation of the dense amorphous structure of granular materials (formed by equal spheres) under air impact is numerically reproduced by a coupled computational fluid dynamics-discrete element method model. Corresponding dynamics and mechanisms are investigated comprehensively through local structural evolution, interparticle interaction forces, and pore filling behavior. Specifically, the jamming phenomenon induced by the structure characteristics is analyzed. The results are of theoretical and practical significance in the preparation of amorphous materials.

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Phys. Rev. B 105, L020202– Published 26 January, 2022
  • Received 14 September 2021
  • Accepted 3 January 2022
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