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The critical role of scale resolution in CFD simulation of gas-solid flows: A heat transfer study using CFD-DEM-IBM method

文献类型：期刊论文

作者Lan, Bin1,2; Zhao, Peng2,3; Xu, Ji2,3; Zhao, Bidan2,3; Zhai, Ming1; Wang, Junwu2,3,4,5
刊名CHEMICAL ENGINEERING SCIENCE
出版日期2023-02-02
卷号266页码:11
关键词Fluidization Heat transfer Multiphase flow Thermal boundary layer CFD-DEM method Scale resolution
ISSN号0009-2509
DOI10.1016/j.ces.2022.118268
英文摘要The surface-to-bed heat transfer coefficient is an important engineering parameter for quantifying the heat transfer capability of fluidized beds. In this study, computational fluid dynamics-discrete element method-immersed boundary method (CFD-DEM-IBM method) is used to simulate the velocity and tem-perature fields around the immersed tube in two fluidized beds, the heat transfer coefficients of fluid-wall, particle-wall, and particle-fluid-wall are then analyzed and compared with experimental data. It is shown that in order to quantitatively predict the surface-to-bed heat transfer coefficient without using empirical correlations, the thermal boundary layer of gas phase that is of the order of particle diameter needs to be explicitly resolved by refining the fluid grid around the immersed tube up to 1=16 of particle diameter, whereas an empirical correlation is necessary to correctly calculate it in the state-of-the-art CFD studies which have used coarse grids. Present study highlights the critical role of scale resolution (specifically, the explicit resolution of the thermal boundary layer) in the study of surface-to-bed heat transfer in gas-solid fluidized beds.(c) 2022 Elsevier Ltd. All rights reserved.
WOS关键词BUBBLING FLUIDIZED-BED ; DYNAMIC MULTISCALE METHOD ; NATURAL-CONVECTION ; PARTICLE-SCALE ; NUMERICAL PREDICTION ; KINETIC-THEORY ; IMMERSED TUBE ; 2-FLUID MODEL ; SURFACE ; WALL
资助项目National Natural Science Foundation of China[11988102] ; National Natural Science Foundation of China[21978295] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2022D02] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A13] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA29040200] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21030700] ; National Key R &D Program of China[2021YFB1715500] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2019050]
WOS研究方向Engineering
语种英语
WOS记录号WOS:000891321300011
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R &D Program of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/55964]  
专题中国科学院过程工程研究所
通讯作者Zhai, Ming; Wang, Junwu
作者单位1.Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, 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
5.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Lan, Bin,Zhao, Peng,Xu, Ji,et al. The critical role of scale resolution in CFD simulation of gas-solid flows: A heat transfer study using CFD-DEM-IBM method[J]. CHEMICAL ENGINEERING SCIENCE,2023,266:11.
APA Lan, Bin,Zhao, Peng,Xu, Ji,Zhao, Bidan,Zhai, Ming,&Wang, Junwu.(2023).The critical role of scale resolution in CFD simulation of gas-solid flows: A heat transfer study using CFD-DEM-IBM method.CHEMICAL ENGINEERING SCIENCE,266,11.
MLA Lan, Bin,et al."The critical role of scale resolution in CFD simulation of gas-solid flows: A heat transfer study using CFD-DEM-IBM method".CHEMICAL ENGINEERING SCIENCE 266(2023):11.

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来源：过程工程研究所

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