1. A streamline in 20-C water is 2 mm from a ?at plate at the leading edge. Using the parabolic velocity pro?le of Sec. 8.5.3 with U1 ¼ 1 m=s, predict how far from the plate the streamline is when x ¼ 1 m.
2. Show that the power-law form for the velocity pro?le in a turbulent ?ow is not a good approximation at the wall or at the outer edge of the boundary layer.