Use the results of Problem 19.22 along with those of Chapter 12 to determine δ, Cfx, δ1, a...

Use the results of Problem 19.22 along with those of Chapter 12 to determine δ, Cfx, δ1, and hx 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.

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 Rex and Pr for velocity and temperature profiles of the form