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Numerical simulation of stirred tanks using a hybrid immersed-boundary method
Di, Shengbin1,2; Xu, Ji1; Chang, Qi1,3; Ge, Wei1
2016-09-01
发表期刊CHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
卷号24期号:9页码:1122-1134
摘要

Conventionally, multiple reference frame (MRF) method and sliding mesh (SM) method are used in the simulation of stirred tanks, however, both methods have limitations. In this study, a hybrid immersed-boundary (IB) technique is developed in a finite difference context for the numerical simulation of stirred tanks. IBs based on Lagrangian markers and solid volume fractions are used for moving and stationary boundaries, respectively, to achieve optimal efficiency and accuracy. To cope with the high computational cost in the simulation of stirred tanks, the technique is implemented on computers with hybrid architecture where central processing units (CPUs) and graphics processing units (GPUs) are used together. The accuracy and efficiency of the present technique are first demonstrated in a relatively simple case, and then the technique is applied to the simulation of turbulent flow in a Rushton stirred tank with large eddy simulation (LES). Finally the proposed methodology is coupled with discrete element method (DEM) to accomplish particle-resolved simulation of solid suspensions in small stirred tanks. It demonstrates that the proposed methodology is a promising tool in simulating turbulent flow in stirred tanks with complex geometries. (C) 2016 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.

关键词Immersed-boundary Method Cpu-gpu Hybrid Computing Stirred Tank Large Eddy Simulation
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cjche.2016.05.031
收录类别SCI
语种英语
关键词[WOS]LARGE-EDDY SIMULATION ; PARTICULATE FLOWS ; RUSHTON TURBINE ; HEAT-TRANSFER ; TURBULENCE ; IMPELLER ; MODEL ; DISPERSION ; GEOMETRIES ; LAMINAR
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(21225628 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDA07080000) ; 51106168 ; 11272312)
WOS记录号WOS:000387583600002
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21656
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
推荐引用方式
GB/T 7714
Di, Shengbin,Xu, Ji,Chang, Qi,et al. Numerical simulation of stirred tanks using a hybrid immersed-boundary method[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2016,24(9):1122-1134.
APA Di, Shengbin,Xu, Ji,Chang, Qi,&Ge, Wei.(2016).Numerical simulation of stirred tanks using a hybrid immersed-boundary method.CHINESE JOURNAL OF CHEMICAL ENGINEERING,24(9),1122-1134.
MLA Di, Shengbin,et al."Numerical simulation of stirred tanks using a hybrid immersed-boundary method".CHINESE JOURNAL OF CHEMICAL ENGINEERING 24.9(2016):1122-1134.
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