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Investigating the influence of wall frictions on hopper flows

文献类型：期刊论文

作者Zhang, Sheng1,2; Lin, Ping1; Wang, Cang-Long1; Tian, Yuan1; Wan, Jiang-Feng1,2; Yang, Lei1
刊名GRANULAR MATTER
出版日期2014-12-01
卷号16页码:857-866
关键词Granular Flow Wall Friction 2d And 3d Hoppers Discrete Element Method Janssen Effect Hertz Model
ISSN号1434-5021
DOI10.1007/s10035-014-0533-1
文献子类Article
英文摘要Here the influence of wall frictions on the hopper flows was carefully studied. Up to 500,000 spheres discharged from two-dimensional and three-dimensional hoppers were simulated by using discrete element method. Unlike the previous understanding, it was found that besides the particle-particle frictions, the effect of wall frictions to the flow rates is obvious when the initial packing height is large enough and this phenomenon can be related to the classical Janssen effect. Other physical quantities, such as the radical distribution function, distribution of force chain length and volume fractions are also investigated with different wall frictions. It was shown that wall frictions have an influence on force chain length and volume fractions, but not on the radical distribution function. This study provides a reference for device designs in the granular industry.
WOS关键词DISCRETE ELEMENT METHOD ; STATE GRANULAR FLOW ; NUMERICAL-MODEL ; MACROSCOPIC ANALYSIS ; CYLINDRICAL HOPPER ; GRAVITY FLOW ; FLAT BOTTOM ; DISCHARGE ; BEHAVIOR ; SILO
资助项目National Natural Science Foundation of China[11304324]
WOS研究方向Materials Science ; Mechanics ; Physics
语种英语
WOS记录号WOS:000345378600003
出版者SPRINGER
源URL[http://119.78.100.186/handle/113462/49527]  
专题中国科学院近代物理研究所
通讯作者Yang, Lei
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Sheng,Lin, Ping,Wang, Cang-Long,et al. Investigating the influence of wall frictions on hopper flows[J]. GRANULAR MATTER,2014,16:857-866.
APA Zhang, Sheng,Lin, Ping,Wang, Cang-Long,Tian, Yuan,Wan, Jiang-Feng,&Yang, Lei.(2014).Investigating the influence of wall frictions on hopper flows.GRANULAR MATTER,16,857-866.
MLA Zhang, Sheng,et al."Investigating the influence of wall frictions on hopper flows".GRANULAR MATTER 16(2014):857-866.

入库方式： OAI收割

来源：近代物理研究所

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