Modulation of energy transport in stagnation point flows involving hybrid nanofluids

The study of stagnation-point flows holds significant importance due to their practical engineering applications. This study examines the flow and heat transfer characteristics induced by bi-linear axial stretching of a heat-generating surface within an electrically conducting hybrid nanofluid comprising alumina, copper nanoparticles suspended in pure water. The surface is subjected to convective heat transfer and stretching strain rates, generating three distinct flow types: Hiemenz (radial stretching), Wang, and Howarth (orthogonal) stagnation point flows. The brick shaped nanoparticles are considered by using Hamilton Crosser’s model. Numerical simulations are acquired through bvp4c, and it reveals that increasing Lorentz force reduces the velocity but enhances drag force. Variation in Biot number indicates more efficient convective heat transfer, which increases temperature within the fluid as more heat was transferred from the surface into the fluid. Additionally, the influence of controlled parameters on flow and thermal profiles is assessed, which provide significant insights into optimizing heat transfer and reducing skin drag in engineering and industrial applications requiring efficient thermal management.