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Statistical foundation of EMMS-based two-fluid models for heterogeneous gas-solid flow
Zhao, Bidan1,2,3; Wang, Junwu1,2,3
2021-09-21
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume241Pages:11
AbstractIn response to the general existence of mesoscale structures in gas & ndash;solid fluidized beds, two versions of EMMS-based two-Fluid Model (EFM) (Hong et al., 2012; Wang et al., 2012a) have been proposed simultaneously from the viewpoint of continuum mechanics via different options of interpenetrating continua. A statistical foundation is however not available yet. To this end, an attempt was made to lay a unified statistical foundation of EFMs: four Boltzmann equations were used to describe respectively the kinetics of particles and gas molecules in dilute and dense phases, the governing equations of EFMs and their corresponding constitutive relations were derived theoretically. It was shown that (i) all governing equations and constitutive laws are structure-dependent; (ii) the solid and gas stresses include the kinetic stress, the phase-internal and interphase collisional stresses and the pseudo Reynolds stress; and (iii) the interphase mass, momentum and energy transfer between the dilute phase and the dense phase can be quantified by assuming that collisions between the particles or gases from the dilute phase and dense phase have a certain probability to result in the mass transfer and vice versa. (c) 2021 Elsevier Ltd. All rights reserved.
KeywordFluidization Multiphase flow Mesoscale structure Cluster Kinetic theory Granular flow
DOI10.1016/j.ces.2021.116678
Language英语
WOS KeywordCIRCULATING FLUIDIZED-BED ; STRUCTURE-DEPENDENT DRAG ; DIRECT NUMERICAL-SIMULATION ; KINETIC-THEORY ; EULERIAN SIMULATION ; CFB RISERS ; INELASTIC SPHERES ; GRANULAR FLOW ; MULTISCALE ; PARTICLES
Funding ProjectNational Natural Science Foundation of China[21908223] ; National Natural Science Foundation of China[11988102] ; National Natural Science Foundation of China[91834303] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2019A13] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-JSC029] ; Chinese Academy of Sciences[XDA21030700]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Chinese Academy of Sciences
WOS IDWOS:000659268900010
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49139
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Junwu
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Bidan,Wang, Junwu. Statistical foundation of EMMS-based two-fluid models for heterogeneous gas-solid flow[J]. CHEMICAL ENGINEERING SCIENCE,2021,241:11.
APA Zhao, Bidan,&Wang, Junwu.(2021).Statistical foundation of EMMS-based two-fluid models for heterogeneous gas-solid flow.CHEMICAL ENGINEERING SCIENCE,241,11.
MLA Zhao, Bidan,et al."Statistical foundation of EMMS-based two-fluid models for heterogeneous gas-solid flow".CHEMICAL ENGINEERING SCIENCE 241(2021):11.
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