CAS OpenIR
Fluid-particle heat transfer in static assemblies: Effect of particle shape
Chang, Qi1,2; Yang, Liqiu2,3; Ge, Wei2,3,4
2021-02-01
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN0017-9310
Volume166Pages:16
AbstractThe 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.
Keywordheat transfer static assemblies spheroid sphere oblate prolate
DOI10.1016/j.ijheatmasstransfer.2020.120730
Language英语
WOS KeywordDIRECT NUMERICAL-SIMULATION ; IMMERSED BOUNDARY METHOD ; LATTICE-BOLTZMANN SIMULATION ; ELLIPSOIDAL PARTICLES ; NUSSELT NUMBER ; PACKED-BEDS ; FLOW ; DRAG ; DYNAMICS ; SPHERES
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
WOS IDWOS:000609976900006
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43343
Collection中国科学院过程工程研究所
Corresponding AuthorGe, Wei
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
Recommended Citation
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.
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