A computational study of the triple-diffusive nonlinear convective nanoliquid flow over a wedge under convective boundary constraints

Abstract

The present study is concerned with a triple-diffusive nonlinear (quadratic) combined convective nanoliquid flow at a wedge under the influence of convective boundary constraints and viscous dissipation. There would be many potential applications of this study of which a thermal system, geothermal power plants, aerodynamics, manufacturing of gate disk valves, nuclear power plants are just to name a few. In the wake of these potential applications, the study of fluid flow over the wedge has been found to be innovative and very interesting in the analysis of the influence of combined quadratic convection, viscous dissipation, diffusion of nanoparticles and hydrogen and oxygen in liquid state. A set of nonlinear coupled partial differential equations with boundary constraints constitute the modelled flow problem. Further, these equations are converted into non-dimensional form by employing the non-similar transformations. The equations thus obtained are then solved by utilizing the Quasilinearization technique and implicit finite difference approximation. The findings of the study reveals that the higher values Schmidt number reduce mass diffusivity of liquid oxygen as against liquid hydrogen. As a result, the fluid species' concentration profile varies inversely as increase corresponding surface gradient increases. Enhancing Biot number values enhances the magnitude of energy transfer rate.