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A mesoscale approach for population balance modeling of bubble size distribution in bubble column reactors
Yang, Ning1; Xiao, Qi1,2
2017-10-12
发表期刊CHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
卷号170期号:OCT页码:241-250
摘要

Prediction of bubble size distribution is of paramount importance for the study of bubble column reactors. Current kernel functions for coalescence or breakage in CFD-PBM simulation are usually derived from the isotropic turbulence theory and overestimate bubble size distribution with increasing gas flow rate. Based on the energy-minimization multi-scale concept, we develop a new approach to calculate the coalescence rate through the so-called stability condition and the meso-scale energy dissipation relevant to bubble breakage and coalescence (Yang et al., 2010). The approach is independent of specific kernel functions, and provides a new constraint to the kernel functions of coalescence or breakage which were previously only related to the turbulence properties through isotropic turbulence theory. New correctors for coalescence rate could then be derived for various kernel models. Our simulation indicates that this new approach can adapt to different coalescence or breakage kernel function models, and can achieve better prediction for bubble size distribution. (C) 2017 Elsevier Ltd. All rights reserved.

关键词Bubble Size Distribution Population Balance Equation Mesoscale Coalescence Breakage Computational Fluid Dynamics
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.ces.2017.01.026
收录类别SCI ; ISTP
语种英语
关键词[WOS]LOOP AIRLIFT REACTOR ; CFD SIMULATION ; 2-PHASE FLOW ; BREAK-UP ; NUMERICAL-SIMULATION ; STABILITY CONDITION ; REGIME TRANSITION ; ENERGY-SPECTRUM ; TURBULENT FLOWS ; ISOTROPIC TURBULENCE
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(91434121 ; Chinese Academy of Sciences(122111KYSB20150003) ; 91634203)
WOS记录号WOS:000407655100024
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23161
专题多相复杂系统国家重点实验室
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.Wuhan 2nd Ship Design & Res Inst, Wuhan 430064, Hubei, Peoples R China
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Yang, Ning,Xiao, Qi. A mesoscale approach for population balance modeling of bubble size distribution in bubble column reactors[J]. CHEMICAL ENGINEERING SCIENCE,2017,170(OCT):241-250.
APA Yang, Ning,&Xiao, Qi.(2017).A mesoscale approach for population balance modeling of bubble size distribution in bubble column reactors.CHEMICAL ENGINEERING SCIENCE,170(OCT),241-250.
MLA Yang, Ning,et al."A mesoscale approach for population balance modeling of bubble size distribution in bubble column reactors".CHEMICAL ENGINEERING SCIENCE 170.OCT(2017):241-250.
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