CAS OpenIR
CFD simulation of bubble column hydrodynamics with a novel drag model based on EMMS approach
Guan, Xiaoping1,2,3; Yang, Ning1,3
2021-11-02
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume243Pages:11
AbstractDrag 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.
KeywordDBS model Drag model Swarm effect CFD Bubble column
DOI10.1016/j.ces.2021.116758
Language英语
WOS KeywordDIRECT NUMERICAL SIMULATIONS ; FLOW-REGIME TRANSITIONS ; RISE VELOCITY ; GAS HOLDUP ; STABILITY CONDITION ; SCALE-UP ; PART 2 ; DYNAMICS ; REACTORS ; SWARM
Funding ProjectNational 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 Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Royal Society
WOS IDWOS:000663706500002
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49251
Collection中国科学院过程工程研究所
Corresponding AuthorYang, Ning
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Guan, Xiaoping]'s Articles
[Yang, Ning]'s Articles
Baidu academic
Similar articles in Baidu academic
[Guan, Xiaoping]'s Articles
[Yang, Ning]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Guan, Xiaoping]'s Articles
[Yang, Ning]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.