Detail publikačního výsledku

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.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2024

Vydáno

01.01.2023

Nakladatel

Elsevier Ltd

Místo

Amsterdam

ISSN

0997-7546

Periodikum

EUROPEAN JOURNAL OF MECHANICS B-FLUIDS

Číslo

97

Stát

Nizozemsko

Strany od

199

Strany do

207

Strany počet

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"
}