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Numerical analysis of flow in a highly efficient flotation column
Alternative TitleAsia-Pac. J. Chem. Eng.
Gong, Maoming1,2; Li, Chunshan2; Li, Zengxi1,2
2015
Source PublicationASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
ISSN1932-2135
Volume10Issue:1Pages:84-95
Abstract

For the purpose of optimization by numerical analysis, a highly efficient flotation column named cyclonic-static micro-bubble flotation apparatus, which is widely used in mineral processing, was simulated with computational fluid dynamics to study the distributions of velocity magnitude, pathlines, turbulent intensity, and turbulent kinetic energy under different discretization schemes, turbulence models, and rotational speeds of pump. This simulation was based on the volume of fluid multiphase and multiple reference frame models. Spatial discretization scheme had an obvious effect on the velocity distribution in the column and revolving flotation sections, especially in the former. The introduction of a turbulence model changed the velocity distribution, the turbulence state, and the pathlines in the column and revolving flotation sections. Moreover, the standard, renormalization group (RNG), and realizable k-epsilon turbulence models had numerous differences. Among these models, the RNG and realizable turbulence models had the most similar results. As the rotational speed of pump increased, velocity and turbulence field intensified. The flow field in the column flotation section differed from that in the revolving flotation section. (c) 2014 Curtin University of Technology and John Wiley & Sons, Ltd.

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For the purpose of optimization by numerical analysis, a highly efficient flotation column named cyclonic-static micro-bubble flotation apparatus, which is widely used in mineral processing, was simulated with computational fluid dynamics to study the distributions of velocity magnitude, pathlines, turbulent intensity, and turbulent kinetic energy under different discretization schemes, turbulence models, and rotational speeds of pump. This simulation was based on the volume of fluid multiphase and multiple reference frame models. Spatial discretization scheme had an obvious effect on the velocity distribution in the column and revolving flotation sections, especially in the former. The introduction of a turbulence model changed the velocity distribution, the turbulence state, and the pathlines in the column and revolving flotation sections. Moreover, the standard, renormalization group (RNG), and realizable k-epsilon turbulence models had numerous differences. Among these models, the RNG and realizable turbulence models had the most similar results. As the rotational speed of pump increased, velocity and turbulence field intensified. The flow field in the column flotation section differed from that in the revolving flotation section. (c) 2014 Curtin University of Technology and John Wiley & Sons, Ltd.

KeywordFlotation Column Numerical Simulation Cfd Vof Mrf
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1002/apj.1849
URL查看原文
Indexed BySCI
Language英语
WOS KeywordPOPULATION BALANCE-EQUATIONS ; TURBULENCE MODELS ; SOLID SUSPENSION ; PIVOT TECHNIQUE ; CFD ; DISCRETIZATION ; SIMULATION
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000348909900008
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11732
Collection研究所(批量导入)
Affiliation1.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Gong, Maoming,Li, Chunshan,Li, Zengxi. Numerical analysis of flow in a highly efficient flotation column[J]. ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,2015,10(1):84-95.
APA Gong, Maoming,Li, Chunshan,&Li, Zengxi.(2015).Numerical analysis of flow in a highly efficient flotation column.ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,10(1),84-95.
MLA Gong, Maoming,et al."Numerical analysis of flow in a highly efficient flotation column".ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING 10.1(2015):84-95.
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