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Multiscale modeling of rapid granular flow with a hybrid discrete-continuum method
Chen, Xizhong1,2; Wang, Junwu1; Li, Jinghai1
2016-12-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume304Issue:DECPages:177-185
Abstract

Both discrete and continuum models have been widely used to study rapid granular flow, discrete model is accurate but computationally expensive, whereas continuum model is computationally efficient but its accuracy is doubtful in many situations. Here we propose a hybrid discrete-continuum method to profit from the merits but discard the drawbacks of both discrete and continuum models. Continuum model is used in the regions where it is valid and discrete model is used in the regions where continuum description fails, they are coupled via dynamical exchange of parameters in the overlap regions. Simulation of granular channel flow demonstrates that the proposed hybrid discrete-continuum method is nearly as accurate as discrete model, with much less computational cost. (C) 2016 Elsevier B.V. All rights reserved.

KeywordHybrid Discrete-continuum Method Multiscale Simulation Discrete Element Model Continuum Model Granular Flow
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2016.08.017
Indexed BySCI ; ISTP
Language英语
WOS KeywordBOUNDARY-CONDITIONS ; FLUID-FLOW ; DENSE ; PARTICLES ; BEDS ; INSTABILITIES ; HYDRODYNAMICS ; SIMULATION ; BEHAVIOR ; 2-FLUID
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000389394500020
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21823
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xizhong,Wang, Junwu,Li, Jinghai. Multiscale modeling of rapid granular flow with a hybrid discrete-continuum method[J]. POWDER TECHNOLOGY,2016,304(DEC):177-185.
APA Chen, Xizhong,Wang, Junwu,&Li, Jinghai.(2016).Multiscale modeling of rapid granular flow with a hybrid discrete-continuum method.POWDER TECHNOLOGY,304(DEC),177-185.
MLA Chen, Xizhong,et al."Multiscale modeling of rapid granular flow with a hybrid discrete-continuum method".POWDER TECHNOLOGY 304.DEC(2016):177-185.
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