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Effect of thermal radiation on heat transfer and entropy generation analysis of MHD hybrid nanofluid inside a square cavity
被引:44
|作者:
Reddy, P. Sudarsana
[1
]
Sreedevi, P.
[1
]
机构:
[1] Rajeev Gandhi Mem Coll Engn & Technol, Dept Math, Nandyal, India
关键词:
Single-walled carbon nanotubes;
silver nanoparticles;
thermal radiation;
magnetic field;
square cavity;
entropy generation;
NATURAL-CONVECTION;
MIXED CONVECTION;
SHAPED CAVITY;
VERTICAL CONE;
MAGNETIC-FIELD;
FLOW;
VISUALIZATION;
CONDUCTIVITY;
ENHANCEMENT;
IMPACT;
D O I:
10.1080/17455030.2021.2023780
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
Hybrid nanofluid prepared with silver particles, single-walled carbon nanotubes as nanoparticles and water as common fluid entropy generation, flow and heat transport features within the closed chamber by captivating radiation and magnetic field is numerically investigated in this analysis. The resulting dimensionless equations are numerically evaluated by utilizing finite element method. The variations in the scatterings of isotherms, streamlines and entropy generation with diverse values of radiation parameter (0.01 <= R <= 0.1), volume fraction of parameter of silver nanoparticles (0.01 <= phi 2 <= 0.1) Prandtl number (5.2 <= Pr <= 8.2), Rayleigh number (10(3) <= Ra <= 10(4) ), volume fraction of parameter of single-walled carbon nanotubes (0.01 <= phi 1 <= 0.1) and magnetic parameter (0.1 <= M <= 0.7) have scrutinized which are schemed through graphs. The sketches of Nusselt number with respect to these parameters are also portrayed through plots. The outcomes of this investigation indicates that temperature gradient of single-walled carbon nanotubes is higher than the silver nanoparticles. Rate of heat transfer augments from 6.2% to 15.6% in the case single-walled carbon nanotubes of volume fraction 0.05 are suspending into the base fluid, whereas, heat transfer rate rises from 6.2% to 10.4% in the case of silver nanoparticles of volume fraction 0.05 are suspending into the base fluid.
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页数:33
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