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题名: Phase transition and bistable phenomenon of granular flows down a chute with successive turnings
作者: Yang, GC;  Liu, QY;  Hu, MB;  Jiang, R;  Wu, QS
刊名: PHYSICS LETTERS A
出版日期: 2014
卷号: 378, 期号:18-19, 页码:1281-1285
关键词: SEGREGATION
学科分类: Physics
DOI: 10.1016/j.physleta.2014.03.009
通讯作者: Hu, MB (reprint author), Univ Sci & Technol China, Sch Engn Sci, Hefei 230026, Peoples R China.
部门归属: [Yang, Guo-Cheng
英文摘要: This paper studies the granular flow down a chute with two successive turnings, which play the role of bottlenecks for the granular flow system and determine the granular flow state in main section between them. With the increase of main section width D, phase transition from dilute to dense granular flow is observed: When the main section width D is small (large), the granular flow at upper (lower) bottleneck is dense and the granular flow is dilute (dense) in the main section. More interestingly, a bistable region is exhibited, in which either dilute flow or dense flow may occur and continue for the entire run. In this region, the packing in the reservoir will affect initial flow rate and then affect the flow pattern. This study can be viewed as a paradigm for the jamming and unjamming transitions under shear due to gravity. (C) 2014 Elsevier B.V. All rights reserved.
资助者: National Natural Science Foundation of China [11034010]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000335283300011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15801
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Recommended Citation:
Yang, GC,Liu, QY,Hu, MB,et al. Phase transition and bistable phenomenon of granular flows down a chute with successive turnings[J]. PHYSICS LETTERS A,2014,378(18-19):1281-1285.
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