article · ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
This research evaluates the thermal transport performance of a hybrid nanofluid in stagnation point flow, incorporating nonlinear radiation effects and a finite propagation speed model. The hybrid fluid is formulated by dispersing aluminium oxide and gamma aluminium oxide nanoparticles into base mixtures of ethylene glycol and engine oil. Mathematical models accounting for an external heat source, boundary layer approximations, and quadratic thermal constraints were resolved using the shooting technique. The theoretical analysis demonstrates that this hybrid nanofluid achieves superior heat transfer characteristics when compared to conventional nanofluids. These performance improvements offer potential benefits for enhancing energy efficiency across diverse thermal systems, supporting advancements in industrial lubrication, heat exchangers, and cooling arrangements.
Efficient heat transfer is critical for preventing overheating and improving energy performance in industrial machinery, vehicles, and electronics. By demonstrating that blending specific aluminium oxide nanoparticles into engine oil and ethylene glycol enhances thermal dissipation, this work informs the design of more effective coolants and cooling mechanisms across demanding technical environments.
The findings are relevant to developers of heat exchangers, automotive cooling systems, and thermal management solutions in aerospace and electronics. However, because this is an early-stage theoretical and mathematical modelling study solved via numerical techniques, further experimental validation and real-world testing are required before the fluid can be commercialised as a functional coolant.
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Abstract This study presents a finite propagation speed model for stagnation point flow of hybrid nanofluid with applications of nonlinear radiated effects. A synthesized hybrid nanofluid is subject to the utilization of Al 2 O 3 and γ‐Al 2 O 3 nanoparticles dispersed in ethylene glycol (EG) and engine oil. Heat transfer impact is further assessed with an external heat source and quadratic thermal constraints. This combination is strategically chosen due to its enhanced thermal conductivity and industrial relevance in lubrication, heat exchangers, and automotive cooling systems. The governing equations, formulated based on boundary layer approximations, are transformed into a system of nonlinear ordinary expressions. For the solution approach, the shooting technique is implemented. It is claimed that the hybrid nanofluid exhibits superior heat transfer performance compared to conventional nanofluids, making it a promising candidate for energy‐efficient thermal management applications. The findings of this study contribute to the optimization of nanofluid‐based thermal systems in engineering applications such as aerospace, manufacturing, and electronic cooling technologies.
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DOI: 10.1002/zamm.70273
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