1268 
shock is not too strong. They become respectively, to 
the first order in c/c, -l, 
S=u,+ec + eo, (15.6 
Q=2 (15.7 
where the following abbreviations have been introduced, 
1 
=5 - = 1 i 
Q 
I 
Te) 
(The first higher order term neglected in (15-7) is quite 
small. In fact one finds 
Po 
for a shock moving into undisturbed fluid. Here p, Q 
2 oe -_ 
@=% _ _ dr" ty-1) (p= Fo)® « .., 
Qo 192 y ° 
represent quantities on the high pressure side of the 
discontinuity. For a shock in which p/p, = 1.6 one has, 
as far as third order terms, 
Eario Menisocod. inate 
Qo 
Q-a 
& =-0,0012, in water. 
Qo 
It was pointed out a reierence (5) that Q is nearly con- 
stant across a shock front in air, even without neglect 
of the entropy change.) The procedure in this report has 
been to use the equations (15.4) and (15.5) in the numsrical 
integration and to use (15.6) and (15.7) in the analytical 
oie ¢ 
