Effect of uniform inclined magnetic field on mixed convection in a lid-driven cavity having a horizontal porous layer saturated with a ferrofluid

被引：117
作者：
Gibanov, Nikita S. [1 ]
Sheremet, Mikhail A. [1 ,2 ]
Oztop, Hakan F. [3 ,4 ]
Abu-Hamdeh, Nidal [4 ]
机构：
[1] Tomsk State Univ, Lab Convect Heat & Mass Transfer, Tomsk 634050, Russia
[2] Tomsk Polytech Univ, Dept Nucl & Thermal Power Plants, Tomsk 634050, Russia
[3] Firat Univ, Technol Fac, Dept Mech Engn, Elazig, Turkey
[4] King Abdulaziz Univ, Dept Mech Engn, Jeddah, Saudi Arabia
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 114卷
关键词：
Uniform inclined magnetic field; Mixed convection; Horizonal porous layer; Lid-driven cavity; Ferrofluid; Numerical results; CONJUGATE NATURAL-CONVECTION; DOUBLE-DIFFUSIVE CONVECTION; HEAT-TRANSFER; ENTROPY GENERATION; SQUARE ENCLOSURE; OPPOSING TEMPERATURE; VERTICAL CYLINDER; FORCED-CONVECTION; WATER NANOFLUID; FLOW;
D O I：
10.1016/j.ijheatmasstransfer.2017.07.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
MHD mixed convection in a lid-driven cavity with partially filled with a porous medium saturated with a ferrofluid has been analyzed numerically. The domain of interest consists of a bottom porous layer and a nanofluid layer over the porous one with a heated motionless bottom wall and cooled upper moved wall. The governing partial differential equations formulated on the basis of a single-phase model for nano fluid, Brinkman-extended Darcy model for porous layer and Boussinesq approximation for buoyancy force have been solved by finite difference method of the second-order accuracy. Analysis has been carried out for a wide range of Hartmann number, magnetic field inclination angle, Darcy number, porous layer height, and nanoparticles volume fraction. It has been revealed that average Nusselt number is a non-monotonic function of Darcy number and porous layer height, while a growth of Hartmann number illustrates the heat transfer rate reduction. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1086 / 1097
页数：12
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