Consider 20 °C water flowing over a thin, wide, smooth flat plate aligned with the flow. The approach velocity is 60 km/hr and the Reynolds number based on the plate length is 2 × 105 . Calculate the...

Consider 20 °C water flowing over a thin, wide, smooth

flat plate aligned with the flow. The approach velocity is 60 km/hr

and the Reynolds number based on the plate length is 2 × 105

.

Calculate the drag per unit width of the plate for each of the velocity profiles listed in Table 9.2. Next calculate the drag coefficient

CD as used in Fig. 9.15. Which velocity profile(s) provide the best

estimation of CD? Why?