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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
发表期刊POWDER TECHNOLOGY
ISSN0032-5910
卷号304期号:DEC页码:177-185
摘要

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.

关键词Hybrid Discrete-continuum Method Multiscale Simulation Discrete Element Model Continuum Model Granular Flow
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.powtec.2016.08.017
收录类别SCI ; ISTP
语种英语
关键词[WOS]BOUNDARY-CONDITIONS ; FLUID-FLOW ; DENSE ; PARTICLES ; BEDS ; INSTABILITIES ; HYDRODYNAMICS ; SIMULATION ; BEHAVIOR ; 2-FLUID
WOS研究方向Engineering
WOS类目Engineering, Chemical
WOS记录号WOS:000389394500020
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21823
专题多相复杂系统国家重点实验室
作者单位1.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
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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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