Fluid-particle heat transfer in static assemblies: Effect of particle shape

doi:10.1016/j.ijheatmasstransfer.2020.120730

	Fluid-particle heat transfer in static assemblies: Effect of particle shape
	Chang, Qi 1,4; Yang, Liqiu 1,3; Ge, Wei 1,2,3
刊名	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
	2021-02-01
卷号	166 页码:16
关键词	heat transfer static assemblies spheroid sphere oblate prolate
ISSN号	0017-9310
DOI	10.1016/j.ijheatmasstransfer.2020.120730
英文摘要	The heat transfer in fluid flow through static assemblies of randomly distributed spheroids, including spheres, prolates, and oblates, is investigated using direct numerical simulation (DNS). Constant heat fluxes are imposed at individual particle surface by the Neumann boundary condition for temperature. The superficial Reynolds number (Re) and the solid volume fraction (phi) range from 2.5 to 200, and from 0.1 to 0.3, respectively. The simulation results for spheres and prolates agree well with the DNS data and correlations in literature and new correlations for prolates and oblates are proposed. With these results, the particle shape effect on the average Nusselt number (Nu(avg)) is described more comprehensively: At low phi (e.g., 0.1), the Nu(avg) for prolates and oblates are higher than that of spheres, and as Re increases, the Nu(avg) of oblates gradually catches up that of prolates and becomes comparable at Re approximate to 200. Moreover, oblates attenuate and intensify the heat transfer at low and high Re at high phi, respectively. (C) 2020 Published by Elsevier Ltd.
WOS关键词	DIRECT NUMERICAL-SIMULATION ; IMMERSED BOUNDARY METHOD ; LATTICE-BOLTZMANN SIMULATION ; ELLIPSOIDAL PARTICLES ; NUSSELT NUMBER ; PACKED-BEDS ; FLOW ; DRAG ; DYNAMICS ; SPHERES
WOS研究方向	Thermodynamics ; Engineering ; Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000609976900006
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/43342]
专题	中国科学院过程工程研究所
通讯作者	Ge, Wei
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 4.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Chang, Qi,Yang, Liqiu,Ge, Wei. Fluid-particle heat transfer in static assemblies: Effect of particle shape[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2021,166:16.
APA	Chang, Qi,Yang, Liqiu,&Ge, Wei.(2021).Fluid-particle heat transfer in static assemblies: Effect of particle shape.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,166,16.
MLA	Chang, Qi,et al."Fluid-particle heat transfer in static assemblies: Effect of particle shape".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 166(2021):16.