-^ =A;(l-f.2)^, ^= -k{e^\) 





dfi dp. d^ 



Suppose now, that a solid ellipsoid is given whose surface is defined by 



[138v, w] 



1, c > a. 



[138x] 



Then its ellipticity is e = (c^ - a^)^^^/c\ and for this ellipsoid a ' = a, c ' = c, so that, if on 

 it ^ = ^Q, from Equation [138j, k]. 



A; = ec= ^Jc'^-a?-, Co^a/k = a/^fc^^^ ^Jl^ /e, e=(Co + l)"^/^ [138y, z, a'] 



and on this ellipsoid 



= O/i, (D - c\ll - y.' 



[138b; c'] 



Five cases of the flow around such an ellipsoid or oblate spheroid will be treated. The 

 general case can be handled by superposing flows of two or more of these five types. 



Case 1. Oblate spheroid or Circular Disk, M-oving Parallel to its Axis of Symmetry. Let 

 its velocity be U toward n = 1; see Figure 233. Then 



Figure 233 — Diagram for translation of an oblate spheroid in the direction 



of its axis. 



359 



