Effect of non-uniform heating and viscous dissipation on natural convective flow of Casson fluid over a vertical cone

Abstract

The non-Newtonian fluid flows find its applications in the production of paints, pharmaceutical products, synthetic lubricant and biological fluid. Because of the significance of this aspect, the present paper describes the consequence of non-uniform surface heating on the natural convection of the Casson fluid past a vertical cone with a viscous dissipation effect. Firstly, the governing partial differential equations are derived in the dimensionless form. After that, the numerical solution is obtained using the Crank–Nicolson technique of the finite difference method. The obtained numerical solutions for the temperature profiles, velocity profiles, local Nusselt number and local skin friction are displayed by employing the graphs in order to judge the impact of the governing physical parameters of the model such as the Casson fluid parameter, Grashof number, Eckert number and semi-vertical angle of the cone. The major result is found that the velocity and temperature profiles are more at the center of the lateral side of the cone.