The surface structure and the active layer depth of the irregular sand particles in a continuously avalanching flow

被引：1

作者：

Qiang, Z. D. ^{[1
]}

Wang, B. D. ^{[1
]}

Li, R. ^{[2
]}

Chen, Q. ^{[1
]}

Zheng, G. ^{[2
]}

Zivkovic, V ^{[3
]}

Yang, H. ^{[1
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai 200093, Peoples R China

[2] Univ Shanghai Sci & Technol, Sch Med Instrument & Food Engn, Shanghai 200093, Peoples R China

[3] Newcastle Univ, Sch Chem Engn & Adv Mat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

POWDER TECHNOLOGY | 2020年 / 360卷

基金：

中国国家自然科学基金;

关键词：

Surface structure; Active layer depth; Irregular sand particles flow; Velocity distribution; GRANULAR FLOW; CYLINDRICAL PARTICLES; MAGNETIC-RESONANCE; ROTATING CYLINDERS; SLUMPING REGIME; MOTION; DYNAMICS; VELOCITY; SOLIDS;

D O I：

10.1016/j.powtec.2019.11.010

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, flow velocity distributions of irregular glass sand particles in rolling regime were measured using spatial filtering velocimetry technique. The results show that there is a significant difference in free-surface velocity distribution both in streamwise direction and axial direction in comparison with models developed for the spherical particles. The central velocity decreases dramatically due to particle accumulation in the middle of the free-surface. Furthermore, the free-surface does not show S-shaped at high rotation speed, and the deepest region at the midpoint of the flowing layer corresponds to low streamwise velocity in contrast to regular particles systems results. Crown Copyright (C) 2019 Published by Elsevier B.V. All rights reserved.

引用

页码：1037 / 1046

页数：10

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