Abstract:

This paper presents a numerical investigation of the natural heat transfer problem of a micropolar boundary layer flow near a vertical surface with constant heat flux. The governing equations are solved numerically using McCormack's technique. Many results are obtained and a representative set is displaced graphically to illustrate the influence of the various physical parameters on the velocity profiles, rotation profiles, and transient wall coefficient of friction. It was found that the temperature increases inside the boundary layer for the micropolar flows, as compared to the Newtonian flows. Moreover, increasing the vortex viscosity parameter increased the rotation inside the boundary layer, which has a propensity to increase the coefficient of friction and to decrease the local Nusselt numbers. Comparisons with previously published work in the limits are performed and the results are found to be in excellent agreement.

Keywords: