Statistical foundation of EMMS-based two-fluid models for heterogeneous gas-solid flow

doi:10.1016/j.ces.2021.116678

	Statistical foundation of EMMS-based two-fluid models for heterogeneous gas-solid flow
	Zhao, Bidan 1,2,3; Wang, Junwu 1,2,3
刊名	CHEMICAL ENGINEERING SCIENCE
	2021-09-21
卷号	241 页码:11
关键词	Fluidization Multiphase flow Mesoscale structure Cluster Kinetic theory Granular flow
ISSN号	0009-2509
DOI	10.1016/j.ces.2021.116678
英文摘要	In 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.
资助项目	National 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关键词	CIRCULATING FLUIDIZED-BED ; STRUCTURE-DEPENDENT DRAG ; DIRECT NUMERICAL-SIMULATION ; KINETIC-THEORY ; EULERIAN SIMULATION ; CFB RISERS ; INELASTIC SPHERES ; GRANULAR FLOW ; MULTISCALE ; PARTICLES
WOS研究方向	Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000659268900010
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49138]
专题	中国科学院过程工程研究所
通讯作者	Wang, Junwu
作者单位	1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
推荐引用方式 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.