Effect of heat generation/absorption on MHD copper-water nanofluid flow over a non-linear stretching/shrinking sheet

摘要

This paper numerically investigates magnetohydrodynamic, dissipative and mixed convection boundary layer copper-water nanofluid fluid flow over a nonlinear stretching/shrinking sheet in the existence of heat generation/absorption and viscous dissipation. The governing coupled nonlinear momentum and thermal energy boundary layer equations are transformed to an ordinary differential equation by using local similarity transformations and then an implicit finite difference scheme is espoused to solve the nonlinear differential equations. The pertinent physical parameters which governs the flow problem are the magnetic field, Richardson number, power law stretching parameter, suction/injection parameter, Eckert number and heat source/sink parameter influenced the velocity and temperature distributions and are portrayed with the aid of graphs. The skin friction coefficient and Nusselt number values are also presented and discussed. The temperature profile increased with an increasing value of and for together stretching and shrinking sheet cases.