article · Open Physics
This research models the thermal behaviour of a ternary hybrid nanofluid combining aluminium oxide, titanium dioxide, and silver nanoparticles suspended in water. The analysis focuses on combined convection flow around a vertical cylinder, incorporating non-linear thermal radiation, an absorber surface, and magnetic field influences. Governing partial differential equations derived from Navier-Stokes and heat transport formulations are transformed into ordinary differential equations and solved numerically using the bvp4c routine in Matlab. The findings establish that integrating these three types of nanoparticles along with a magnetic field substantially increases the heat transfer rate. Additionally, elevating the volume fraction of nanoparticles enhances thermal conductivity and accelerates heat movement, while the thermal radiation parameter similarly boosts heat transport. Conversely, increasing the Weissenberg number leads to a reduction in fluid flow velocity.
Efficient heat dissipation is essential for preventing overheating in dense electronic components, advanced aerospace equipment, and automotive systems. Demonstrating how a ternary mixture of nanoparticles and magnetic fields enhances fluid heat transport provides fundamental insights into cooling mechanisms. This can help design more effective thermal management systems and energy storage technologies capable of handling higher operational temperatures.
The findings relate to thermal management solutions in automotive engines, aerospace hardware, solar thermal energy storage, and electronics cooling. Thermal engineers and cooling system developers could potentially draw on these models to guide future coolant formulations. However, because the study is entirely theoretical and numerical, using mathematical modelling in Matlab, the technology remains at an early stage of research and requires extensive physical formulation and experimental testing before commercial deployment.
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Abstract The ternary hybrid nanofluid leads to a significant enhancement in thermal performance applications like heat transfer in automotive engines, solar thermal energy storage, aerospace, and electronic cooling. The present study investigates the thermal characteristics of a ternary hybrid magnetized and radiated cross nanofluid comprising Al 2 O 3 , TiO 2 , and Ag nanoparticles in water subjected to combined convection flow around a vertical cylinder. Furthermore, innovative effects of the magnetic field, absorber surface of the cylinder, non-linear thermal radiations, and effective thermophysical characteristics of ternary nanofluid are taken, and a new model for heat transport is successfully achieved. The governing equations in the form of partial differential equations (PDEs) are obtained through Navier–Stokes and heat equations by applying current assumptions. The system of PDEs is converted into a set of ordinary differential equations (ODEs) via a similarity variable. The built-in code bvp4c in Matlab software further exercises the dimensionless ODE equations numerically. Adding multiple nanoparticles and the magnetic field effect enhances the heat transfer rate in the ternary hybrid cross nanofluid. The Weissenberg number reduces the velocity, the radiation parameter increases heat transport, and the increased volume friction of nanoparticles enhances thermal conductivity and rapid heat transport.
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DOI: 10.1515/phys-2023-0197
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