As shown in Fig. P8.28, the velocity profile for laminar flow in a pipe is quite different from that for turbulent flow. With laminar flow the velocity profile is parabolic; with turbulent flow at \(\operatorname{Re}=10,000\) the velocity profile can be approximated by the power-law profile shown in the figure.

(a) For laminar flow, determine at what radial location you would place a Pitot tube if it is to measure the average velocity in the pipe.

(b) Repeat part (a) for turbulent flow with \(\operatorname{Re}=10,000\).

Figure P8.28

Transcribed Image Text:

1.0 Turbulent with Re = 10,000 V-1-15 r LR 0.5 Laminar with Re < 2100 R 2 0 R 117 0.5 1.0