Effect of granular shape on radial segregation in a two-dimensional drum

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外文摘要：Granular segregation is widely observed in nature and industry.Most research has focused on segregation caused by differences in the size and density of spherical grains.However,due to the fact that grains typically have different shapes,the focus is shifting towards shape segregation.In this study,experiments are conducted by mixing cubic and spherical grains.The results indicate that spherical grains gather at the center and cubic grains are distributed around them,and the degree of segregation is low.Through experiments,a structured analysis of local regions is conducted to explain the inability to form stable segregation patterns with obviously different geometric shapes.Further,through simulations,the reasons for the central and peripheral distributions are explained by comparing velocities and the number of collisions of the grains in the flow layer.

外文关键词：

granular materialscubic grainsshape segregationsegregation mechanism

作者：

徐悦、李然、迟志鹏、修文正、孙其诚、杨晖

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作者单位：

School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China

School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255049,China

State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China

College of Medical Instruments,Shanghai University of Medicine and Health Sciences,Shanghai 201318,China

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基金：

国家自然科学基金国家自然科学基金

项目编号：

1207220012372384

出版年：

2024

DOI：

10.1088/1674-1056/ad1092

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(4)

参考文献量20