CFD simulation of bubble column hydrodynamics with a novel drag model based on EMMS approach
文献类型：期刊论文
| 作者 | Guan, Xiaoping1,2,3; Yang, Ning1,2 |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2021-11-02 |
| 卷号 | 243页码:11 |
| 关键词 | DBS model Drag model Swarm effect CFD Bubble column |
| ISSN号 | 0009-2509 |
| DOI | 10.1016/j.ces.2021.116758 |
| 英文摘要 | Drag model is of critical importance for CFD simulation of flow characteristics in bubble columns. In this study, a novel drag model termed DBS-Local for the ratio of effective drag coefficient to bubble diameter is derived from the Dual-Bubble-Size (DBS) model based on Energy-Minimization Multi-Scale (EMMS). A thorough comparison demonstrates that without adjustable parameters, both the DBS-Local model and the DBS-Global model are capable of improving the prediction of total and local gas holdup as well as the flow characteristics in different flow regimes. By contrast, other drag models either overestimate or underestimate the total or local gas holdup in certain flow regimes. Moreover, the centerline liquid velocity predicted by DBS-Local model shows best agreement with experiments, whereas the other models, especially the Ishii-Zuber model, over-estimate liquid velocity. This study demonstrates the significance of modeling the bubble-swarm effect based on EMMS approach. (c) 2021 Elsevier Ltd. All rights reserved. |
| WOS关键词 | DIRECT NUMERICAL SIMULATIONS ; FLOW-REGIME TRANSITIONS ; RISE VELOCITY ; GAS HOLDUP ; STABILITY CONDITION ; SCALE-UP ; PART 2 ; DYNAMICS ; REACTORS ; SWARM |
| 资助项目 | National Natural Science Foundation of China[21925805] ; National Natural Science Foundation of China[91834303] ; National Natural Science Foundation of China[21808222] ; National Natural Science Foundation of China[22061130204] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A13] ; Royal Society[NAF \R1\201305] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000663706500002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Royal Society |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/49250]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Yang, Ning |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan, Xiaoping,Yang, Ning. CFD simulation of bubble column hydrodynamics with a novel drag model based on EMMS approach[J]. CHEMICAL ENGINEERING SCIENCE,2021,243:11. |
| APA | Guan, Xiaoping,&Yang, Ning.(2021).CFD simulation of bubble column hydrodynamics with a novel drag model based on EMMS approach.CHEMICAL ENGINEERING SCIENCE,243,11. |
| MLA | Guan, Xiaoping,et al."CFD simulation of bubble column hydrodynamics with a novel drag model based on EMMS approach".CHEMICAL ENGINEERING SCIENCE 243(2021):11. |
入库方式： OAI收割
来源：过程工程研究所
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