A sketch of flow streamlines (contours of constant stream function) is shown in Fig. P9–70E for steady, incompressible, two-dimensional flow of air in a curved duct.

(a) Draw arrows on the streamlines to indicate the direction of flow. 

(b) If h = 1.58 in, what is the approximate speed of the air at point P? 

(c) Repeat part (b) if the fluid were water instead of air. Discuss.

FIGURE P9–70E

Transcribed Image Text:

= 0.32 ft²/s h = 0.45 ft²/s