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Three-dimensional numerical study of flow characteristics and membrane fouling evolution in an enzymatic membrane reactor
Hu, Xu-qu1; Wu, Pai-qing1; Wang, Xing-yi1; Zhang, Hai-cheng1; Luo, Jian-quan2
2018-10-01
Source PublicationJOURNAL OF HYDRODYNAMICS
ISSN1001-6058
Volume30Issue:5Pages:851-858
Abstract

In order to enhance the understanding of the membrane fouling mechanism, the hydrodynamics of the granular flow in a stirred enzymatic membrane reactor is numerically investigated in the present paper. A three-dimensional Euler-Euler model, coupled with the k - epsilon mixture turbulence model and the drag function proposed by Syamlal and O'Brien (1989) for the interphase momentum exchange, is built to simulate the two-phase (fluid-solid) turbulent flow. Numerical simulations of single- or two-phase turbulent flows at various stirring speeds are carried out. The numerical results agree very well with the published experimental data. Results include the distributions of the velocity, the shear stress and the turbulent kinetic energy. It is shown that the increase of the stirring speed not only enlarges the circulation loops in the reactor, but also increases the shear stress on the membrane surface and accelerates the mixing process for the granular materials. The time evolution of the volumetric function of the granular materials on the membrane surface can qualitatively explain the evolution of the membrane fouling.

KeywordTurbulent Flow Multiphase Flow Membrane Fouling
DOI10.1007/s42241-018-0096-4
Language英语
WOS KeywordTurbulent-flow ; Fluidized-bed ; Filtration ; Performance ; Deposition ; Operation ; Systems ; Model ; Dmfcs
Funding ProjectState Key Laboratory of Advanced Design and Manufacturing for Vehicle Body[51475002] ; Fundamental Research Funds for the Central Universities (Hunan University)
WOS Research AreaMechanics
WOS SubjectMechanics
Funding OrganizationState Key Laboratory of Advanced Design and Manufacturing for Vehicle Body ; Fundamental Research Funds for the Central Universities (Hunan University)
WOS IDWOS:000447002000008
PublisherSPRINGER
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26368
Collection中国科学院过程工程研究所
Corresponding AuthorLuo, Jian-quan
Affiliation1.Hunan Univ, Coll Mech & Vehicle Engn, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Hu, Xu-qu,Wu, Pai-qing,Wang, Xing-yi,et al. Three-dimensional numerical study of flow characteristics and membrane fouling evolution in an enzymatic membrane reactor[J]. JOURNAL OF HYDRODYNAMICS,2018,30(5):851-858.
APA Hu, Xu-qu,Wu, Pai-qing,Wang, Xing-yi,Zhang, Hai-cheng,&Luo, Jian-quan.(2018).Three-dimensional numerical study of flow characteristics and membrane fouling evolution in an enzymatic membrane reactor.JOURNAL OF HYDRODYNAMICS,30(5),851-858.
MLA Hu, Xu-qu,et al."Three-dimensional numerical study of flow characteristics and membrane fouling evolution in an enzymatic membrane reactor".JOURNAL OF HYDRODYNAMICS 30.5(2018):851-858.
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