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Figure 81 — Line source at in a uniform stream 122 



Figure 82 - Streamlines past a cylinder S of semi-infinite cross-section, only half 



of which is shown, of width 27Tff at infinity , 123 



Figure 83 - Cylinder whose cross-section S is a Rankine oval, obtained from a line 



source at (a,0) and a sink at (-a,0) , 124 



Figure 84 — One quarter of the streamline plot for a more slender Rankine oval 126 



Figure 85 — Streamlines past a broader Rankine oval with construction cur\es 127 



Figure 86 — Vortex pair in a transverse stream 128 



Figure 87 — Line source on axis of a circular-arc shell 129 



Figure 88 - A plane sheet of line sources 130 



Figure 89 — Cylinder with semi-infinite cross-section S, obtained from a source- 

 sheet in a stream 132 



Figure 90 — Streamlines past the cylinder shown as S in Figure 89 133 



Figure 91 — Streamlines due to a line vortex at P, opposite a semi-infinite rigid 



plane extending from toward the right 136 



Figure 92 — The vortex of Figure 91 before transformation to the 2-plane 136 



Figure 93 — Confocal ellipses and hyperbolas 138 



Figure 94 — Streamlines for flow through a slot in an infinite plane wall, and 



circulatory flow around a plane lamina 139 



Figure 95 — Half of the symmetrical flow net for fluid entering a straight 



two-dimensional spout 141 



Figure 96 — Flow net for fluid entering a diverging spout 143 



Figure 97 — A few streamlines for fluid flowing past a two-dimensional pitot tube 145 



Figure 98 - Lamina between walls; a grating of laminas; slot in a partition 



between walls 146 



Figure 99 - Diagram for flow past a circular cylinder 149 



Figure 100 - Flow net for symmetrical flow past a circular cylinder 150 



Figure 101 - Pressure in the symmetrical flow past a circular cylinder 151 



Figure 102 - Streamlines around a circular cylinder in translation 152 



Figure 103 - Flow net for a stream with circulation past a circular cylinder, and 



distribution of pressure over the cylinder 153 



Figure 104 - Streamlines for flow with stronger circulation past a circular cylinder 



and distribution of pressure over the cylinder 154 



