Investigation of steady viscous magnetohydrodynamic copper-alumina/ethylene glycol hybrid nanofluid in mixed convective vicinity stagnation-point over a vertical plate with Joule heating

In this article, the effects of Joule heating and MHD mixed convective hybrid nanofluid (copper + aluminium oxide/ethylene glycol) flow close to a vertical plate's stagnation point is investigated. Since hybrid nanofluids have higher effective viscosity, density, and conductivity than nanofluids, they have a higher rate of heat transfer than nanofluids at a stagnation point across a vertical penetrable flat plate. Additionally, while taking into account the effects of magnetohydrodynamics, the effects of Joule heating are relevant in resistance heating coils, incandescent light bulbs, clothes irons, fan heaters, laboratory water baths and hair dryers. A system of non-dimensional ordinary differential equations and boundary conditions are obtained using appropriate dimensionless variables from the set of partial differential equations in the proposed model. Dimensionless variables are used to generate dimensionless set of nonlinear coupled ordinary differential equations for dimensional governing equations, which are subsequently, computed using shooting technique process with the Runge-Kutta-Fehlberg method. The flow phenomena and the simulated result for the contributing parameters are presented via graphs and tables. Additionally, the energy equation's dissipative heat energy exhibits a noteworthy behavior with respect to the coupling parameter. Specifically, an increase in the Eckert number causes the hybrid nanofluid's temperature to rise and its thermal conductivity to overshoot when compared to its nanofluid.