Effect of Thermal Dispersion and Thermal Radiation on Boundary Payer Flow of Mhd Nanofluid With Variable Suction

The present study investigates the unsteady, two dimensional, laminar flow of a nanofluid over a stretching sheet with thermal dispersion in the presence of MHD and variable suction is studied. Two water based nanofluids containing Copper Cu, Titanium dioxide TiO2 nanoparticles are considered in this study. Using the similarity transformations, the governing equations have been transformed into a system of ordinary differential equations. These differential equations are highly nonlinear which cannot be solved analytically. Therefore, Runge–Kutta Gill method together with shooting technique has been used for solving it. Numerical results are obtained for the skin-friction coefficient and the local Nusselt number as well as the velocity and temperature profiles for different values of the governing parameters, namely, unsteadiness parameter, solid volume fraction, magnetic parameter, suction parameter, thermal dispersion parameter, thermal radiation parameter and Prandtl number.