article · Case Studies in Thermal Engineering
Understanding the movement and thermal behaviour of nanofluids across stretched surfaces is critical for improving heat transfer systems. This investigation models the dynamics of a slippery nanofluid flowing over a permeable, rough stretching sheet exposed to magnetic forces, thermal radiation, viscous dissipation, and convective heating. By formulating conservation equations for mass, momentum, heat, and nanoparticle concentration, the system is simplified into nonlinear ordinary differential equations and solved using the Adomian decomposition approach. The results show that higher slip velocity and stronger magnetic parameters lead to a thinner velocity boundary layer. Conversely, these same factors expand the thermal boundary layer, highlighting distinct interactions between fluid motion, magnetic fields, and heat dispersal. These quantitative findings clarify how external physical conditions influence nanofluid flow and thermal management.
Nanofluids offer enhanced thermal properties, making them valuable for advanced cooling and heat exchange processes. By revealing how magnetic forces and surface slip conditions alter fluid motion and heat dissipation along stretching surfaces, this study helps researchers better understand fluid behaviour under complex physical conditions, supporting the fundamental design of more efficient thermal management systems.
This work is early-stage theoretical research focused on mathematical modelling and simulation. While the abstract notes relevance to industrial nanofluid contexts, it does not specify target products, industrial partners, or a direct development pathway. Any real-world implementation by thermal engineers or equipment manufacturers would require empirical testing and extensive prototyping to validate the theoretical findings.
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The investigation detailed in this paper explores the behavior of a slippery nanofluid flowing over a permeable stretched sheet under the influence of magnetohydrodynamic forces, considering factors like thermal radiation, viscous dissipation, and convective boundary conditions. The analysis systematically establishes principles for conserving mass, heat, momentum, and nanoparticle concentration, deriving a set of nonlinear ordinary differential equations from the governing partial differential equations. To tackle these challenges, the Adomian decomposition approach is utilized as a central element of the solution methodology. Graphical representations are employed to depict the solutions across various physical parameters. Despite the significance of nanofluids in both industrial and scientific contexts, there exists a noticeable research gap concerning the combined impacts of thermal radiation, viscous dissipation, and convective boundary conditions on heat and mass transfer, especially when coupled with a permeable linear rough stretched sheet. This study aims to fill this void by offering quantitative insights into these intricate phenomena, thereby enhancing our understanding of nanofluid dynamics and their practical implications. The findings indicate that increasing slip velocity and magnetic parameters reduce the boundary layer thickness of the velocity profile but increase it for the temperature profile, suggesting a nuanced interplay between slip velocity and magnetic effects on velocity boundary layers, while the temperature boundary layer exhibits distinct thermal dynamics within the system.
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DOI: 10.1016/j.csite.2024.104683
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