article · Numerical Heat Transfer Part A Applications
This research investigates how thermal radiation and Navier slip influence the behaviour of a micropolar nanofluid flowing near a stagnation point across a stretching surface. By converting the governing partial differential equations into non-linear ordinary differential equations via similarity transformations, the mathematical model was solved numerically using the Runge-Kutta-Fehlberg integration method combined with a shooting technique. The results show that increasing the magnetic field parameter accelerates the velocity of the micropolar nanofluid. Conversely, raising the micropolar parameter leads to a reduction in the fluid's angular velocity. Furthermore, comparative evaluations of Nusselt and Sherwood numbers demonstrate that thermophoresis and Brownian motion change under specific restrictive conditions.
Understanding how nanofluids transfer heat under magnetic and radiative conditions helps engineers design more effective thermal systems. By uncovering how factors such as slip and fluid microstructures alter flow speeds and heat transfer, this work contributes to the theoretical foundation needed to improve base fluids used across engineering and industrial operations.
The abstract does not indicate a direct commercial application pathway. This study represents early-stage, theoretical and numerical research aimed at understanding the fluid dynamics of heat conduction, with potential eventual relevance to industrial heat transfer processes and thermal engineering designs once practical testing occurs.
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The quest to strengthen heat conduction of thermal science base fluid for effective industrial outputs and engineering derives has recently increased. Thus, this study aims to determine how thermal radiation and slip effects affect the flow of a micropolar nanofluid near a stagnation point over an extending sheet. Using similarity transformations, the flow-controlling partial differential equations (PDEs) are turned into a set of non-linear ordinary differential equations (ODEs). The non-linear system of equations has been solved by the numerical technique Runge-Kutta-Fehlberg integration scheme implementing the shooting technique with suitable conditions to generate a numerical solution. The essential factors affecting the flow are depicted graphically and tabularly. Additionally, a comparison is conducted between the present result and previously published data on the Nusselt and Sherwood numbers; it claims that thermophoresis and Brownian motion vary under some restrictive conditions. An increase in the magnetic field parameter was found to boost the velocity of the micropolar nanofluid. In contrast, a rise in the micropolar parameter reduces the angular velocity.
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DOI: 10.1080/10407782.2024.2338264
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