A study on periodic boundary condition in direct numerical simulation for gas-solid flow | |
Liu, Shiwen1,2; Liu, Xiaowen1,2; Chen, Feiguo1; Wang, Limin1; Ge, Wei1,2 | |
刊名 | CHINESE JOURNAL OF CHEMICAL ENGINEERING |
2020 | |
卷号 | 28期号:1页码:236-241 |
关键词 | Direct Numerical Simulation Periodic Boundary Condition Two-region Periodic Boundary Condition Gas-solid Flow Heterogeneity |
ISSN号 | 1004-9541 |
DOI | 10.1016/j.cjche.2019.04.025 |
英文摘要 | Direct numerical simulation (DNS) of gas-solid flow at high resolution has been carried out by coupling the lattice Boltzmann method (LBM) for gas flow and the discrete element method (DEM) for solid particles. However, the body force periodic boundary condition (FPBC) commonly used to cut down the huge computational cost of such simulation has faced accuracy concerns. In this study, a novel two-region periodic boundary condition (TPBC) is presented to remedy this problem, with the flow driven in the region with body force and freely evolving in the other region. With simulation cases for simple circulating fluidized bed risers, the validity and advantages of TPBC are demonstrated with more reasonable heterogeneity of the particle distribution as compared to the corresponding case with FPBC. (C) 2019 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved. |
资助项目 | National Natural Science Foundation of China[21821005] ; National Natural Science Foundation of China[91834303] ; Science Challenge Project[TZ2016001] ; Key Research Program of Frontier Science of the Chinese Academy of Sciences[QYZDJ-SSW-JSC029] ; Strategic Priority Research Program of the CAS[XDA21030700] |
WOS关键词 | Scale ; Dynamics ; Model ; Drag ; Bed |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | CHEMICAL INDUSTRY PRESS CO LTD |
WOS记录号 | WOS:000519533600026 |
资助机构 | National Natural Science Foundation of China ; Science Challenge Project ; Key Research Program of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the CAS |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/39800] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Chen, Feiguo; Ge, Wei |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Shiwen,Liu, Xiaowen,Chen, Feiguo,et al. A study on periodic boundary condition in direct numerical simulation for gas-solid flow[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2020,28(1):236-241. |
APA | Liu, Shiwen,Liu, Xiaowen,Chen, Feiguo,Wang, Limin,&Ge, Wei.(2020).A study on periodic boundary condition in direct numerical simulation for gas-solid flow.CHINESE JOURNAL OF CHEMICAL ENGINEERING,28(1),236-241. |
MLA | Liu, Shiwen,et al."A study on periodic boundary condition in direct numerical simulation for gas-solid flow".CHINESE JOURNAL OF CHEMICAL ENGINEERING 28.1(2020):236-241. |
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