Use the results of Problem 19.22 along with those of Chapter 12 to determine , C fx

Use the results of Problem 19.22 along with those of Chapter 12 to determine δ, C_fx, δ₁, and h_x at a distance of 40 cm from the leading edge of a flat plane. Air with a free-stream velocity of 5 m/s and T_∞ = 300 K flows parallel to the plate surface. The first 20 cm of the plate is unheated; the surface temperature is maintained at 400 K beyond that point.

Data From Problem 19.22

Using the appropriate integral formulas for flow parallel to a flat surface with a constant free-stream velocity, develop expressions for the local Nusselt number in terms of Re_x and Pr for velocity and temperature profiles of the form

v = a + by, T - T_s = α + βy