Numerical Simulation of Natural Convection Heat Transfer of Nanofluid With Cu, MWCNT, and Al2O3 Nanoparticles in a Cavity With Different Aspect Ratios

被引：80

作者：

Goodarzi, Hossein ^{[1
]}

Akbari, Omid Ali ^{[2
]}

Sarafraz, Mohammad Mohsen ^{[3
]}

Karchegani, Majid Mokhtari ^{[2
]}

Safaei, Mohammad Reza ^{[4
,5
]}

Shabani, Gholamreza Ahmadi Sheikh ^{[2
]}

机构：

[1] Islamic Azad Univ, Aligoudarz Branch, Young Researchers & Elite Club, Aligoudarz, Iran

[2] Islamic Azad Univ, Khomeinishahr Branch, Young Researchers & Elite Club, Esfahan, Iran

[3] Univ Adelaide, Sch Mech Engn, Adelaide, SA, Australia

[4] Ton Duc Thang Univ, Inst Computat Sci, Div Computat Phys, Ho Chi Minh City, Vietnam

[5] Ton Duc Thang Univ, Fac Elect & Elect Engn, Ho Chi Minh City, Vietnam

来源：

JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS | 2019年 / 11卷 / 06期

关键词：

SQUARE CAVITY;

D O I：

10.1115/1.4043809

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Effect of the size of a closed cavity and different nanoparticles on natural convection heat transfer is investigated using the finite volume method. In the current numerical study, free convection of nanofluid with Cu, multi-walled carbon nanotubes, and Al2O3 nanoparticles is considered at Rayleigh numbers (Ra) of 10-100,000 inside a two-dimensional rectangular cavity with different aspect ratios. Results of this study show that in the presence of cooling fluid with low temperature and hot zone in the cavity, due to the temperature difference between the fluid and hot zone, heat transfer occurs. Heat transfer in the cavity is influenced by fluid circulation caused by natural convection heat transfer and conductive heat transfer mechanism.

引用

页数：4

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