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THE STUDY OF NATURAL CONVECTION HEAT TRANSFER OF NANOFLUIDS IN A PARTIALLY POROUS CAVITY BASED ON LATTICE BOLTZMANN METHOD
Yao, Shouguang1; Huang, Tao1; Zeng, Jianbang2; Duan, Luobin1; Zhao, Kai3
2019
发表期刊THERMAL SCIENCE
ISSN0354-9836
卷号23期号:2页码:1003-1015
通讯作者Yao, Shouguang(zjyaosg@126.com)
摘要This article used the lattice Boltzmann method to study the heat transmission of natural convective of nanofluids in a 2-D square cavity partially filled with porous medium. The nanoparticles volume fraction of A1203, Cu, and Si02 were 0.5%, 1%, 1.5%, 2%,.5/,06, and 4%, which were mixed with water and 70% of ethylene glycol aqueous solution as the base fluid, and made up six kinds of nanofluids as the research object. Using nanofluids coupled double distribution lattice Boltzmann method model, this paper studied the rules of natural convection heat transfer of different nanofluids with the changing of Rayleigh number and the concentration of the nanoparticles in the 2-D square cavity partially filled with porous medium. The results showed that the average Nusselt number of the hot wall will increase with the increase of Rayleigh number number, and under different heat transfer conditions, there are two different critical Rayleigh numbers. In the case of different concentrations of the same concentration, the critical Rayleigh number is about 105, when Ra > Rae, the average Nusselt number of water is higher; when Ra < Rae, the average Nusselt number of the average Nusselt number of ethylene glycol is higher. In the case of different concentrations of same particles, the critical Rayleigh number is between 105 and 106, there was also a critical Rayleigh number (Rae =105), when the Ra < Rae, the average Nusselt number of the hot wall will increase with the increasing of concentration; when the Ra > Rae, there is a slight decreasing in the average Nusselt number with the increasing of concentration. The critical Rayleigh number of water as the base fluid is smaller than that of ethylene glycol as the base fluid.
关键词porous medium natural convention lattice Boltzmann method nanofluids
DOI10.2298/TSCI170302169S
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China[51176069]
WOS研究方向Thermodynamics
项目资助者National Natural Science Foundation of China
WOS类目Thermodynamics
WOS记录号WOS:000467782000012
出版者VINCA INST NUCLEAR SCI
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/24989
专题中国科学院广州能源研究所
通讯作者Yao, Shouguang
作者单位1.Jiangsu Univ Sci & Technol, Sch Energy & Power Engn, Zhenjiang, Jiangsu, Peoples R China
2.Chinese Acad Sci Guangzhou, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China
3.China Int Marine Containers Grp Co Ltd Nantong, Nantong, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Yao, Shouguang,Huang, Tao,Zeng, Jianbang,et al. THE STUDY OF NATURAL CONVECTION HEAT TRANSFER OF NANOFLUIDS IN A PARTIALLY POROUS CAVITY BASED ON LATTICE BOLTZMANN METHOD[J]. THERMAL SCIENCE,2019,23(2):1003-1015.
APA Yao, Shouguang,Huang, Tao,Zeng, Jianbang,Duan, Luobin,&Zhao, Kai.(2019).THE STUDY OF NATURAL CONVECTION HEAT TRANSFER OF NANOFLUIDS IN A PARTIALLY POROUS CAVITY BASED ON LATTICE BOLTZMANN METHOD.THERMAL SCIENCE,23(2),1003-1015.
MLA Yao, Shouguang,et al."THE STUDY OF NATURAL CONVECTION HEAT TRANSFER OF NANOFLUIDS IN A PARTIALLY POROUS CAVITY BASED ON LATTICE BOLTZMANN METHOD".THERMAL SCIENCE 23.2(2019):1003-1015.
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