Investigation of Hydrothermal Behavior of Fe3O4-H2O Nanofluid Natural Convection in a Novel Shape of Porous Cavity Subjected to Magnetic Field Dependent (MFD) Viscosity

被引：101

作者：

Molana, M. ^{[1
,2
]}

Dogonchi, A. S. ^{[3
]}

Armaghani, T. ^{[4
]}

Chamkha, Ali J. ^{[5
,6
]}

Ganji, D. D. ^{[7
]}

Tlili, Iskander ^{[8
,9
]}

机构：

[1] Wayne State Univ, Dept Mech Engn, Detroit, MI 48202 USA

[2] Islamic Azad Univ, West Tehran Branch, Young Researchers & Elite Clubs, Tehran, Iran

[3] Islamic Azad Univ, Dept Mech Engn, Aliabad Katoul Branch, Aliabad Katoul, Iran

[4] Islamic Azad Univ, Dept Engn, Mahdishahr Branch, Mahdishahr, Iran

[5] Prince Mohammad Bin Fahd Univ, Mech Engn Dept, Prince Sultan Endowment Energy & Environm, Al Khobar 31952, Saudi Arabia

[6] Amer Univ Ras Al Khaimah, RAK Res & Innovat Ctr, Ras Al Khaymah, U Arab Emirates

[7] Islamic Azad Univ, Dept Mech Engn, Sari Branch, Sari, Iran

[8] Ton Duc Thang Univ, Dept Management Sci & Technol Dev, Ho Chi Minh City, Vietnam

[9] Ton Duc Thang Univ, Fac Appl Sci, Ho Chi Minh City, Vietnam

来源：

JOURNAL OF ENERGY STORAGE | 2020年 / 30卷

关键词：

Natural convection; Novel shape of cavity; Nanofluids; Magnetic field; Porous media; MFD; HEAT-TRANSFER; ENTROPY GENERATION; AL2O3-WATER NANOFLUID; FLOW; COMBUSTION; ENCLOSURE; COOLANT;

D O I：

10.1016/j.est.2020.101395

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A novel shape of cavity filled by Fe3O4-water nanofluids and porous media associated with natural convection under a constant inclined magnetic field has been studied. A novel model for viscosity named magnetic field dependent (MFD) viscosity is applied. The effects of Darcy, Hartmann and Rayleigh numbers, inclination angle and the cavity aspect ratio on heat and flow fields characteristics have been examined. The results represent that more the heat transfer rate has been constrained with any increment in the Hartmann number and therefore, the magnetic field can be utilized as an excellent controller of the heat transfer. Further, it is inferred that more values of the aspect ratio give always a greater average Nusselt number, at a given Ra.

引用

页数：11

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