Answer Happy

Consider the steady and two-dimensional laminar boundary-layer flow of constant thermophysical properties with constant and uniform free-stream velocity U. and temperature To over a flat plate. Let there be an unheated starting region that estends a distance x, from the leading edge and the plate be maintained at a constant temperature Tw for x > Xo. Assuming linear velocity and temperature profiles in the respective boundary layers and neglecting viscous dissipation, develop an expression for local Nusselt number Nu, applicable to such x > x, where &; <S. <