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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
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume24Issue:9Pages:1122-1134
Abstract

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.

KeywordImmersed-boundary Method Cpu-gpu Hybrid Computing Stirred Tank Large Eddy Simulation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cjche.2016.05.031
Indexed BySCI
Language英语
WOS KeywordLARGE-EDDY SIMULATION ; PARTICULATE FLOWS ; RUSHTON TURBINE ; HEAT-TRANSFER ; TURBULENCE ; IMPELLER ; MODEL ; DISPERSION ; GEOMETRIES ; LAMINAR
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(21225628 ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDA07080000) ; 51106168 ; 11272312)
WOS IDWOS:000387583600002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21656
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
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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