Abstract
The incorporation of nanoparticles is highly desirable due to their capability to enhance thermal conductivity, which promotes efficient heat dissipation, enhances the performance and reliability of heat-generating/absorption systems. This study investigates the effects of three types of nanoparticles, magnetic field, stretching and rotation of disk on the Homann stagnation point flow. The gold, polystyrene, and polymethylmethacrylate nanoparticles are drenched in ethanol to make a ternary hybrid nanofluid. The governing equations are transformed via similarity transformations, and the resulting system is solved numerically by using the finite difference method. The effects of the nanoparticle's concentration, stretching-rotation of surface, and magnetic field on the velocity, temperature, skin friction, and Nusselt number are analyzed. The mechanism contributes to augment the thermal conductivity of the fluid, resulting in an elevation in temperature and a reduction in velocity. Stretching of the surface promotes the acceleration of fluid particles, leading to higher velocities. On the other hand, the decline in temperature is due to the stretching-induced expansion of the fluid, which reduces the thermal energy. The study provides valuable insights into the complex interactions between nanoparticles, stretching, rotation, and magnetic field on the flow properties and may have practical implications in the design and optimization of nanofluid-based systems for various applications.
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