Abstract
In this article, entropy generation with radiation on non-Newtonian Carreau nanofluid towards a shrinking sheet is investigated numerically. The effects of magnetohydrodynamics (MHD) are also taken into account. Firstly, the governing flow problem is simplified into ordinary differential equations from partial differential equations with the help of similarity variables. The solution of the resulting nonlinear differential equations is solved numerically with the help of the successive linearization method and Chebyshev spectral collocation method. The influence of all the emerging parameters is discussed with the help of graphs and tables. It is observed that the influence of magnetic field and fluid parameters oppose the flow. It is also analyzed that thermal radiation effects and the Prandtl number show opposite behavior on temperature profile. Furthermore, it is also observed that entropy profile increases for all the physical parameters.
Highlights
During the past few years, nanoparticles with heat and mass transfer received a remarkable attention by different researchers due to its various applications in differential industrial process.Different kinds of heat transfer in Newtonian/non-Newtonian fluids such as water, ethylene glycol, and oil are poor heat transfer fluids
The graphical results are sketched for velocity profile, temperature profile, concentration profile, and entropy profile against Hartmann number, thermophoresis parameter, Brownian motion parameter, Lewis number, fluid parameter, radiation parameter, Reynolds number, Brinkmann number, and Prandtl number, respectively
We can observe that velocity depicts similar behavior when the influence of magnetic field increases
Summary
During the past few years, nanoparticles with heat and mass transfer received a remarkable attention by different researchers due to its various applications in differential industrial process.Different kinds of heat transfer in Newtonian/non-Newtonian fluids such as water, ethylene glycol, and oil are poor heat transfer fluids. The analysis of heat transfer in stretched flow has a great importance due to its wide applications in chemical engineering such as polymer extrusion process, metallurgical process, paper production and glass fiber [1] In such kinds of process, the stretching and cooling rate greatly impact the quality of the product. Nanomaterial is considered to be more efficient in nano/micro electromechanical devices, thermal management systems at large scales, heat exchangers, advanced cooling systems, industrial cooling applications, etc. Such type of fluids are very much balanced having no issues of erosion, non-Newtonian properties, pressure drop, and sedimentation
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