DEM study of the angle of repose and porosity distribution of cylindrical particles with different lengths-Reference-Cited by-同舟云学术

DEM study of the angle of repose and porosity distribution of cylindrical particles with different lengths

Published:2021-09-07 Issue:0 Volume:0 Page:
ISSN:1542-6580
Container-title:International Journal of Chemical Reactor Engineering
language:en
Short-container-title:

Author:

Zhou Heng¹,Tian Xu¹,Guo Xingyu¹,Kou Mingyin¹,Wu Shengli¹,Shen Yansong²,You Yang³

Affiliation:

1. State Key Laboratory of Advanced Metallurgy , School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing , Beijing , 100083 , China

2. School of Chemical Engineering, University of New South Wales , Sydney , NSW , 2052 , Australia

3. College of materials Science and Engineering, Chongqing University , Shapingba District , Chongqing , 400044 , China

Abstract

Abstract Effect of the length of cylindrical particle on repose angle and porosity of a pile was numerically studied using discrete element method. The variation of repose angle and porosity with coefficient of sliding and rolling friction were also discussed. The results shown that compared with sphere particle, the bottom size of cylindrical pile is smaller, while the height of cylinder pile is larger and the heap is steeper. With the increase of the length of cylinder, the contour line of the pile becomes steep, and the angle of repose increases. The repose angle shows a positive correlation with coefficient of sliding and rolling friction. The porosity increases with the increase of the length of cylinders. The trends of porosity are basically consist with that of repose angle, and with increase of friction coefficient, the average porosity increases.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering

Link

https://www.degruyter.com/document/doi/10.1515/ijcre-2021-0174/pdf

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