Figure 211 — A sphere in translation. 

 See Section 127. 



Figure 212 — Streamlines due to 

 moving sphere. (Copied from 

 Reference 1.) 



Using also Equation [119g], the potential c;6 and stream function tjj in the fluid as thus 

 found are 



a^ V cos 6 a^ V sin^ 



2 2' 2 T 



[127a, b] 



The radial and tangential components of velocity are 



dr ,3 



1 d4> a^U sin f^ 



[127c,d] 



319 



