CAS OpenIR
Bimodal frequency distribution of granular discharge in 2D hoppers
Zhang, Shuai1,2,3; Zhao, Mingcan2,4; Ge, Wei2,3,4; Liu, Chunjiang1,3
2021-12-14
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume245Pages:13
AbstractAs a classical example of granular flow, gravity-driven hopper flow has been studied for decades, but an in-depth understanding of its fluctuation is still lacking, especially at small-scale and short-term. In this experimental and numerical study, the time interval (t(Delta)) between the discharging of two consecutive grains from hoppers under a series of geometrical and operating conditions is characterized by its probability density function (PDF). By ensemble averaging over a large number of cases, the PDF from simulation and experiments was found to be consistent but totally different for small and big orifices. Three modes of particle discharging were found and each matches a section of the PDF, with two of the modes found in simulating the discharging of hard sphere gas through an orifice, which suggests a similar mechanism behind the two phenomena. These findings may be helpful to the designing and operation of high-precision feeding system, such as in pharmaceutical industries. (C) 2021 Elsevier Ltd. All rights reserved.
KeywordHopper flow Discrete element method Ensemble averaging Hard sphere gas
DOI10.1016/j.ces.2021.116945
Language英语
WOS KeywordFLOW ; FLUCTUATIONS ; ALGORITHMS ; SIMULATION ; EFFICIENT ; POWDERS
Funding ProjectInnovation Academy for Green Manufacture, Chinese Academy of Sciences (CAS)[IAGM-2019-A03] ; Key Research Program of Frontier Science, Chinese Academy of Sciences (CAS)[QYZDJ-SSW-JSC029] ; National Natural Science Foundation of China[21821005] ; National Natural Science Foundation of China[91834303] ; National Natural Science Foundation of China[92034302] ; National Natural Science Foundation of China[22078330]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationInnovation Academy for Green Manufacture, Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Science, Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China
WOS IDWOS:000702871400005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50282
Collection中国科学院过程工程研究所
Corresponding AuthorGe, Wei
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn IPE, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
4.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Shuai,Zhao, Mingcan,Ge, Wei,et al. Bimodal frequency distribution of granular discharge in 2D hoppers[J]. CHEMICAL ENGINEERING SCIENCE,2021,245:13.
APA Zhang, Shuai,Zhao, Mingcan,Ge, Wei,&Liu, Chunjiang.(2021).Bimodal frequency distribution of granular discharge in 2D hoppers.CHEMICAL ENGINEERING SCIENCE,245,13.
MLA Zhang, Shuai,et al."Bimodal frequency distribution of granular discharge in 2D hoppers".CHEMICAL ENGINEERING SCIENCE 245(2021):13.
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