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Modeling of co-current and counter-current bubble columns with an extended EMMS approach
Guan, XP; Yang, N; Guan, Xiaoping; Yang, Ning
2019
Source PublicationPARTICUOLOGY
ISSN1674-2001
Volume44Pages:126
AbstractBubble columns can be operated in semi-batch, co-current or counter-current mode. This study attempts to extend the dual-bubble-size (DBS) model, viz., the energy-minimization multi-scale (EMMS) model for gas-liquid systems, to co-current and counter-current bubble columns. With the increase of superficial liquid velocity, the predicted total gas holdup and regime transition are in accordance with experiments. A DBS drag model was then developed and incorporated into the CFD simulation. The total gas holdup and local gas holdup radial distribution in both the co-current and counter-current bubble columns are well estimated. The findings in the present work demonstrate that developing closure laws through the stability condition is of great significance in modeling complicated multi-scale flow in bubble columns. (C) 2019 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
KeywordCo-current FLOW REGIME TRANSITION Counter-current GAS-LIQUID FLOW Bubble columns CFD SIMULATION CFD HYDRODYNAMICS HOLDUP Drag model STABILITY CONDITION PHASE DISTRIBUTION TURBULENCE MODELS COMPLEX-SYSTEMS SOLID FLOW FORCES
SubtypeArticle; Proceedings Paper
DOI10.1016/j.partic.2018.07.009
WOS IDWOS:000468708400015
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28173
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Guan, XP,Yang, N,Guan, Xiaoping,et al. Modeling of co-current and counter-current bubble columns with an extended EMMS approach[J]. PARTICUOLOGY,2019,44:126, 135.
APA Guan, XP,Yang, N,Guan, Xiaoping,&Yang, Ning.(2019).Modeling of co-current and counter-current bubble columns with an extended EMMS approach.PARTICUOLOGY,44,126.
MLA Guan, XP,et al."Modeling of co-current and counter-current bubble columns with an extended EMMS approach".PARTICUOLOGY 44(2019):126.
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