Figure 104. The excess pressure on the cylinder, -p - p^, for steady motion, is shown in each 

 case in terms of pU'^/2 as a unit. The angle 6 is plotted as abscissa toward the left from to 

 77, then toward the right; "above" and "below" refer to the upper and lower halves of the cyl- 

 inder as drawn. 



Figure 104a 



360° 



Figure 104b 



Figure 104 — Streamlines for flow with stronger ciiculation past a circular 



cylinder, and distribution of pressure over the cylinder. See Section 69. 



(The streamlines are copied from Reference 257.) 



154 



