Numerical simulation of turbulent flow in a baffled stirred tank with an explicit algebraic stress model

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	Numerical simulation of turbulent flow in a baffled stirred tank with an explicit algebraic stress model
	Feng, Xin 1,2; Cheng, Jingcai 1,2; Li, Xiangyang 1,2; Yang, Chao 1,2; Mao, Zai-Sha 1,2
刊名	CHEMICAL ENGINEERING SCIENCE
	2012-02-13
卷号	69 期号:1 页码:30-44
关键词	Explicit algebraic stress model Stirred reactor Turbulence Simulation Reaction engineering Hydrodynamics
ISSN号	0009-2509
通讯作者	Yang, C
英文摘要	An explicit algebraic stress model (EASM) was used to simulate anisotropic turbulent flows in baffled stirred tanks equipped with a standard Rushton turbine. The quantitative predictions of velocity components, turbulence kinetic energy, Reynolds stresses and turbulence energy dissipation rate in the context of anisotropic turbulence were conducted to assess the comprehensive performance of the EASM. A lot of efforts have been made to ensure numerical stability during the calculations such as using a good initial flow field, manipulating source terms and adjusting under-relaxation factors. The predicted results were also compared with experimental data and other simulation results obtained using the standard k-epsilon model, algebraic stress model (ASM), Reynolds stress model (RSM) and large eddy simulation (LES). All the simulations were run with in-house codes. The simulation results show that agreement between the EASM predictions and experimental values is satisfactory. The EASM is consistently superior to the standard k-e model when predicting both peak values and trend of variation in velocities and turbulence quantities. In comparison to the RSM, the EASM has almost the same predictive accuracy. The EASM is inferior to the LES on the prediction of turbulence kinetic energy. Nevertheless, the computational cost of the EASM is significantly lower than that of the LES, which is an obvious advantage in practical applications. (C) 2011 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	LARGE-EDDY SIMULATION ; GAS-LIQUID FLOW ; RUSHTON-TURBINE ; REYNOLDS STRESSES ; MESH METHODOLOGY ; LDA MEASUREMENTS ; CFD SIMULATIONS ; K-EPSILON ; IMPELLER ; VESSELS
收录类别	SCI
语种	英语
WOS记录号	WOS:000298325800002
公开日期	2013-10-28
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/4326]
专题	过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Jiangsu Marine Resources Dev Res Inst, Lianyungang 222005, Peoples R China
推荐引用方式 GB/T 7714	Feng, Xin,Cheng, Jingcai,Li, Xiangyang,et al. Numerical simulation of turbulent flow in a baffled stirred tank with an explicit algebraic stress model[J]. CHEMICAL ENGINEERING SCIENCE,2012,69(1):30-44.
APA	Feng, Xin,Cheng, Jingcai,Li, Xiangyang,Yang, Chao,&Mao, Zai-Sha.(2012).Numerical simulation of turbulent flow in a baffled stirred tank with an explicit algebraic stress model.CHEMICAL ENGINEERING SCIENCE,69(1),30-44.
MLA	Feng, Xin,et al."Numerical simulation of turbulent flow in a baffled stirred tank with an explicit algebraic stress model".CHEMICAL ENGINEERING SCIENCE 69.1(2012):30-44.