Impact of Entropy Generation and Nonlinear Thermal Radiation on Darcy-Forchheimer Flow of MnFe2O4-Casson/Water Nanofluid due to a Rotating Disk: Application to Brain Dynamics

被引:102
|
作者
Shaw, Sachin [1 ]
Dogonchi, A. S. [2 ]
Nayak, M. K. [3 ]
Makinde, O. D. [4 ]
机构
[1] Botswana Int Univ Sci & Technol, Dept Math & Stat Sci, Private Bag 16, Palapye, Botswana
[2] Islamic Azad Univ, Dept Mech Engn, Aliabad Katoul Branch, Aliabad Katoul, Iran
[3] Siksha O Anusandhan, Dept Phys, IHSE, Bhubaneswar 751003, Odisha, India
[4] Stellenbosch Univ, Fac Mil Sci, Private Bag X2, ZA-7395 Saldanha, South Africa
关键词
Rotating disk; Nonlinear thermal radiation; Entropy generation; MnFe2O4-Casson; water nanofluid; Darcy-Forchheimer flow; Viscous dissipation; MIXED CONVECTION FLOW; BOUNDARY-LAYER-FLOW; POROUS-MEDIUM; HEAT-TRANSFER; NATURAL-CONVECTION; STRETCHING SURFACE; ACTIVATION-ENERGY; MASS-TRANSFER; FLUID; SLIP;
D O I
10.1007/s13369-020-04453-2
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The present article candidly states the incremental impact of nonlinear thermal radiation on heat transfer enhancement due to Darcy-Forchheimer flow of spinel-type MnFe2O4-Casson/water nanofluids due to a stretched rotating disk. In present contest, the entropy generation approach is highlighted specially as a powerful tool for the analysis of the brain function, in accordance with the theological and philosophical approach of Saint Thomas Aquinas. The some of the results of the present study that strengthening of permeability and Casson parameter contribute to the diminution of radial and tangential velocity profiles and yield shrinkage of the related boundary layers. An increase in thermal radiation leading to more heat propagating into the fluid thereby improves the TBL. Fluids with non-Newtonian behavior contribute greater entropy generation rate compared to Newtonian fluids. The most significant outcome is that the entropy generation makes a real contribution to the brain function or analysis of the function of the brain.
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页码:5471 / 5490
页数:20
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