Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
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 |
ISSN | 0354-9836 |
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 |
DOI | 10.2298/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 | |
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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