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Influence of an inserted bar on the flow regimes in the hopper*

文献类型：期刊论文

作者Peng, Yi1,2; Zhang, Sheng2; Wang, Mengke2; Yang, Guanghui2; Wan, Jiangfeng3; Chen, Liangwen2; Yang, Lei2
刊名CHINESE PHYSICS B
出版日期2021-02-01
卷号30期号:2页码:5
关键词hopper flow inserted bar flow type transition free surface velocity distribution
ISSN号1674-1056
DOI10.1088/1674-1056/abcf40
通讯作者Wang, Mengke(wangmk@impcas.ac.cn)
英文摘要We investigated the influence of an inserted bar on the hopper flow experimentally. Three geometrical parameters, size of upper outlet D-1, size of lower outlet D-0, and the height of bar H, are variables here. With varying H we found three regimes: one transition from clogging to a surface flow and another transition from a surface flow to a dense flow. For the dense flow, the flow rate follows Beverloo's law and there is a saturation of inclination of free surface theta. We plotted the velocity field and there is a uniform linear relation between the particle velocity and depth from the free surface. We also found that the required value of D-1 to guarantee the connectivity of flow is little smaller than D-0. For the transition from a surface flow to a dense flow, there is a jump of flow rate and the minimum theta for flowing is two degrees larger than the repose angle.
资助项目National Natural Science Foundation of China[11705256] ; National Natural Science Foundation of China[11905272] ; National Postdoctoral Program for Innovative Talents, China[BX201700258] ; West Light Foundation of the Chinese Academy of Sciences[2018-98]
WOS研究方向Physics
语种英语
WOS记录号WOS:000616158700001
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China ; National Postdoctoral Program for Innovative Talents, China ; West Light Foundation of the Chinese Academy of Sciences
源URL[http://119.78.100.186/handle/113462/138047]  
专题中国科学院近代物理研究所
通讯作者Wang, Mengke
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
3.East China Univ Technol, Nanchang 330000, Jiangxi, Peoples R China
推荐引用方式
GB/T 7714		 Peng, Yi,Zhang, Sheng,Wang, Mengke,et al. Influence of an inserted bar on the flow regimes in the hopper*[J]. CHINESE PHYSICS B,2021,30(2):5.
APA Peng, Yi.,Zhang, Sheng.,Wang, Mengke.,Yang, Guanghui.,Wan, Jiangfeng.,...&Yang, Lei.(2021).Influence of an inserted bar on the flow regimes in the hopper*.CHINESE PHYSICS B,30(2),5.
MLA Peng, Yi,et al."Influence of an inserted bar on the flow regimes in the hopper*".CHINESE PHYSICS B 30.2(2021):5.

入库方式： OAI收割

来源：近代物理研究所

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