Consider 2-d laminar boundary layer air flow of Uo =23 m/s along a flat plate with length of L=115 cm long and at U sin( zero pressure-gradient. Assume that the velocity profile in the boundary layer is sinusoidal Find the growth of the boundary layer thickness, , and friction factor, Cr, at x=14.61 cm. Assume kinematic viscosity to be v = 1.5 x 10-5 m2/s. u(x, y) (, ), Xer laminar turbulent Figure 1: Boundary layer over a flat plate. Hint 1. First solve the problem in a parametric form and then substitute the numerics in the solution.