1328 
Fig. 14 
R A density-discontinuity, however, 
I will exist in the region between 
a the shocks M and R. Let p"(=p') 
gas be the pressure behind the shock 
<7 a M and eo p/p" = i ss Then 
2 by (2a") we have for normalization 
M with respect to the region in 
front of M 
o(F) = M(F) csc oc 
or o (=) =o} cso ne a 
F F 
Thus in addition to equations (9a) and (9b) we now have relation 
5 ¢ 
(11) hoiding for the variables ( F, F » &). Hence for a given 
value of § an angle & 4,4, is determined. In the limiting 
sta 
case F*1 equation (11) reduces to 
whe re F eee 4 
Tables 8a, b give these so-called "stationary" values for 
Xy = 7.15 and 2.00, 1.40 respecitvely. 
This "quasi-stationary" flow corresponds to the regular- 
reflection solution with low-valued LS for weak incident 
shocks, but with the high-valued Fi for strong incident shocks. 
The critical strength Fo that ssparates these two classes of 
quasi-stationary solutions is that particular one which is 
identical with an "extreme" solution (cf. fig. 10a, a', b, c), 
= 4 0i= 
