The Remarkable Role of Hydrogen in Conductors with Copper and Silver Nanoparticles by Mixed Convection Using Viscosity Reynold’s Model

This article includes an analysis of the influence of mixed convection and variable viscosity under the effect of a transverse magnetic field on a stretching surface. Nano-fluid viscosity is supposed to be dependent on temperature. The effect of variable viscosity on the transversal magnetic field and hybrid convection can be seen by using Reynold’s model. The resulting nonlinear system of partial differential equations is transformed into a nonlinear system of first-order ordinary differential equations by the Lobatto IIIA approach, simplifying physical flow problems. Moreover, the impact of different parameters on temperature and velocity is shown graphically and tabulated results are also presented. The numerical findings obtained in this study are validated and very well in line with some previous literature findings. This research has helped to minimize the fluid flow and increases the fluid temperature and associated thermal boundary thickness by increasing the amount of Hartmann (parameter). In addition, the effect of the mixed convection and applied magnetic transverse fields are studied.