Non-similar analysis for magnetohydrodynamic flow of hybrid nanofluid over a curved stretching surface with Hall current and viscous dissipation effects

Abstract

This study investigates the performance of Zinc Oxide (ZnO) and Aluminum Oxide (Al 2 O 3 ) nanoparticles suspended in water (H 2 O) in the existence of magnetohydrodynamics (MHD) and Hall current effects. The main objective of this examination is to explore the fundamental mechanisms that influence the drag coefficient and Nusselt number over a curved stretching surface. Governing equations are initially transformed into dimensionless PDEs through the application of non-similarity transformations. Following that, the local non-similarity method is employed to treat this non-dimensional system as ODEs. The resulting system is tackled numerically by applying the BVP4c algorithm. This numerical approach entails a comprehensive analysis of numerous graphical and tabular results. The main aim is to elucidate the influences of various flow parameters on the temperature, axial velocity, skin friction, isotherm contour, pressure profile, heat transfer, and streamlines pattern of hybrid nanoliquid. Based on the obtained results, it is evident that the temperature of the hybrid nanofluid increases for higher values of magnetic number and heat sink/source. The velocity profile diminishes for increasing values of magnetic number. Contour plots depicting isotherms and streamlines disclose opposite trends concerning the Hall parameter and magnetic number. The outcomes of the present study also indicate that the temperature profile improves for growing values of Eckert number and radiation parameter, whereas it decreases for concentration of nanoparticles and magnetic number. It is noted that the local Nusselt number rises with increasing Hall parameter, concentration of nanoparticles, curvature parameter, and heat generation parameter. Furthermore, the Nusselt number decreases for higher values of magnetic number and radiation parameter.

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