1094 
Fig. 12—14. Flow caused by a cylinder for R = ox, 
calculated with the formulae of OSEEN. 
Fig. 12. Vortex layers. 
Fig. 13. Absolute flow. 
ones ae chs aa 
TE Sr ews Wrs ESET 
Fig. 14. Relative flow. 
At a great distance from the cylinder we have a radial current, 
which displaces totally: 227 A,—2,35; this amount comes back in 
the wake stream between y=-+1 and y= — 1. In the wake at 
a great distance from the cylinder 7g may be neglected, so that 
v=1—-v*; and 
1 
2 ay (1—v*) = 2,36. 
0 
