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Numerical simulation of macro-mixing in liquid-liquid stirred tanks
Cheng, Dang; Feng, Xin; Cheng, Jingcai; Yang, Chao
2013-09-20
Source PublicationCHEMICAL ENGINEERING SCIENCE
Volume101Issue:0Pages:272-282
AbstractNumerical simulations of turbulent immiscible liquid-liquid mixing processes in cylindrical stirred tanks driven by a Rushton turbine are carried out based on an Eulerian-Eulerian approach using in-house codes. An isotropic standard k-epsilon turbulence model and an anisotropic two-phase explicit algebraic stress model (EASM) are used for flow field simulations. Quantitative comparisons of the homogenization curve and mixing time predicted by the EASM are conducted with reported experimental data and other predictions by the standard k-epsilon model and large eddy simulation (LES). The comparisons show that the EASM predictions are in satisfactory agreement with experimental data and better than the k-epsilon model ones. The variation of the continuous phase mixing time with impeller speed can be an effective method to determine the critical impeller speed for complete dispersion of oil phase. The key features of the complex liquid-liquid mixing processes in stirred tanks have been successfully predicted by the EASM, which can be an alternative tool for practical engineering applications with economical computational cost and good accuracy. (C) 2013 Elsevier Ltd. All rights reserved.
KeywordMixing Multiphase Reactors Liquid-liquid Turbulence Computational Fluid Dynamics Transport Processes
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordTURBULENT-FLOW REGIME ; LARGE-EDDY SIMULATION ; CFD SIMULATION ; RUSHTON TURBINE ; SOLID SUSPENSION ; DISPERSED PHASE ; FLUID-DYNAMICS ; STRESS MODEL ; 2 IMPELLERS ; VESSEL
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000323603700028
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13643
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Cheng, Dang,Feng, Xin,Cheng, Jingcai,et al. Numerical simulation of macro-mixing in liquid-liquid stirred tanks[J]. CHEMICAL ENGINEERING SCIENCE,2013,101(0):272-282.
APA Cheng, Dang,Feng, Xin,Cheng, Jingcai,&Yang, Chao.(2013).Numerical simulation of macro-mixing in liquid-liquid stirred tanks.CHEMICAL ENGINEERING SCIENCE,101(0),272-282.
MLA Cheng, Dang,et al."Numerical simulation of macro-mixing in liquid-liquid stirred tanks".CHEMICAL ENGINEERING SCIENCE 101.0(2013):272-282.
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