Publication result detail

Study on collision between single coarse particle and wall in viscous media using CFD–DEM

Chen, L., Wang, Y., Klemeš, J.J., Wang, J., Tao, W.

Original Title

Study on collision between single coarse particle and wall in viscous media using CFD–DEM

English Title

Study on collision between single coarse particle and wall in viscous media using CFD–DEM

Type

WoS Article

Original Abstract

Collision between particle and wall is common in granular two-phase flow. This study is helpful to optimise flow conveying system, reduce attrition between materials and devices, and improve development of economy. The collision between a single coarse particle (3 mm in diameter) and wall in a viscous media was investigated by Hertz–Mindlin no-slip contact model based on the coupled computational fluid dynamics and discrete element method (CFD-DEM). Effects of impact velocity and viscosity of media on contact processes and contact force are studied in this research. The calculated results from the collision model are consistent with experimental data, and contact velocity and viscosity of media show significant effects on the contact force of particles. With the reduction of the dimensionless number St, the ratio of unloading time to loading time increases significantly.

English abstract

Collision between particle and wall is common in granular two-phase flow. This study is helpful to optimise flow conveying system, reduce attrition between materials and devices, and improve development of economy. The collision between a single coarse particle (3 mm in diameter) and wall in a viscous media was investigated by Hertz–Mindlin no-slip contact model based on the coupled computational fluid dynamics and discrete element method (CFD-DEM). Effects of impact velocity and viscosity of media on contact processes and contact force are studied in this research. The calculated results from the collision model are consistent with experimental data, and contact velocity and viscosity of media show significant effects on the contact force of particles. With the reduction of the dimensionless number St, the ratio of unloading time to loading time increases significantly.

Keywords

Computational fluid dynamics; Discrete element method; Hertz–Mindlin model; Particle–wall collision; Two-phase flow

Key words in English

Computational fluid dynamics; Discrete element method; Hertz–Mindlin model; Particle–wall collision; Two-phase flow

Authors

Chen, L., Wang, Y., Klemeš, J.J., Wang, J., Tao, W.

RIV year

2024

Released

01.01.2023

Publisher

Elsevier Ltd

Location

Amsterdam

ISBN

0997-7546

Periodical

EUROPEAN JOURNAL OF MECHANICS B-FLUIDS

Number

97

State

Kingdom of the Netherlands

Pages from

199

Pages to

207

Pages count

9

URL

https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0997754622001339

BibTex

@article{BUT180100,
  author="Jiří {Klemeš} and Jin {Wang}",
  title="Study on collision between single coarse particle and wall in viscous media using CFD–DEM",
  journal="EUROPEAN JOURNAL OF MECHANICS B-FLUIDS",
  year="2023",
  number="97",
  pages="199--207",
  doi="10.1016/j.euromechflu.2022.10.008",
  issn="0997-7546",
  url="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0997754622001339"
}