Viscous dissipation and variable viscosity impacts on oscillatory heat and mass transfer of gravity-driven reactive flow along heated plate

Abstract

The species chemical reaction is an especially significant event in transient fluids. This is a crucial element that raises the temperature as a result of a noticeable rise in reaction rates. Hydrometallurgical industries and chemical engineering, such as the manufacturing of polymers and the processing of food, put a significant amount of concentration with consequences of chemical reactions on heat and mass transport. The effects of chemical reaction, reduced gravity, viscous dissipation, and viscosity on oscillatory heat and mass properties of gravity-driven reactive flow across an inclined heated plate at three positions cos 30 ° , cos 45 ° , and cos 60 ° are the main objective of this work. To elaborate material quantities, the computational mathematical model is developed. The viscosity of fluid is considered as a function of temperature. The non-dimensional model is transformed into non-oscillating and oscillating parts by using Stokes factors. For the convergence of numerical outcomes, the primitive formulation is used. The graphical and numerical findings are obtained through FORTRAN language and Tecplot-360 software. It was found that the velocity of fluid increases for lower values of reaction rate but decreases for higher reaction rate. It can be seen that the significant magnitude of oscillatory heat transfer increases as the Prandtl number increases. It is also examined that amplitude of shearing stress increases at each angle as the reduced gravity increases. The prominent amplitude in the oscillating in heat and mass transfer for minimum viscosity is noted along the inclined heated plate.