共 63 条
Numerical simulation for heat transfer intensification of nanofluid in a porous curved enclosure considering shape effect of Fe3O4 nanoparticles
被引:32
作者:
Sheikholeslami, M.
[1
]
Shamlooei, M.
[1
]
Moradi, R.
[2
]
机构:
[1] Babol Noshirvani Univ Technol, Dept Mech Engn, Babol Sar, Iran
[2] Khazar Univ, Sch Engn & Appl Sci, Dept Chem Engn, Baku, Azerbaijan
关键词:
Thermal radiation;
Nanofluid;
Heat transfer intensification;
Magnetic field;
Permeable media;
Shape factor;
MAGNETIC-FIELD;
NATURAL-CONVECTION;
FORCED-CONVECTION;
TRANSFER ENHANCEMENT;
THERMAL-RADIATION;
CUO-H2O NANOFLUID;
LORENTZ FORCES;
PERMEABLE CAVITY;
FLOW;
EXISTENCE;
D O I:
10.1016/j.cep.2017.12.005
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:
In this paper, influence of external magnetic field and thermal radiation on heat transfer intensification of nanofluid in a porous curved enclosure is simulated. Magnetic field and shape factor effects on nanofluid properties are taken into account. Final equations are obtained by means of vorticity stream function formulation and they are solved via Control volume based finite element method. Isotherms and streamlines are shown for various values of Darcy number, Fe3O4-water nanofluid volume fraction, radiation parameter, Hartmann number and Rayleigh number. Results indicate that maximum Nusselt number is obtained for Platelet shaped nanoparticles. Heat transfer rate augments with rise of permeability of porous media and Rayleigh number and opposite trend is observed for Hartmann number. Besides, it can be found that velocity of nanofluid decreases with increase of Lorentz forces.
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页码:71 / 82
页数:12
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