The result for Problem 9.12 predicts that the average velocity for turbulent flow will be found at a distance of 0.216r 0 from the wall of the pipe. Compute this distance for a 24-in Schedule 40 steel pipe. Then, if the pipe carries water at 50°F at a flow rate of 16.75 ft3 /s, compute the velocity at points 0.50 in on either side of the average velocity point.
Problem 9.12
Using Eq. (9- 3), compute the distance y for which the local velocity U is equal to the average velocity v.
