1279 
gathered together, The incident shock is specified by 
its pressure-ratio, if » The maximum material velocity, B, 
is first found if y 
I os 1 Fe 
Bevcee LS ijt) of Ciena 
¥ 
The following constants are functions of B and y 
ae Bay + B) (22.8 
q, =-4B(20-* 3 + 1) (22,9 
= - 7 (8¥Y -llgy (22.10 
ao = 2h? pel (22.3 
B= 5 =u [ sx-8 BY + 2B] (22.4 
These constants determine the auxiliary functions: 
2 
x(t.) = At, + @tg (22.2 
Q(tg) = Ao ar ait, + dota” (22.7 
Alta) = Hes ag “pst Q (ty) (22.3 
In terms of these functions the parametric equations of the 
pressure-time curve at the wall are 
. ) 
= x a 
toast > te (242 
2 
re Q (eg) (25.3 
Pp 
The duration of the pressure on the wall is determined by 
putting Q = ey in (22.7), and then using (24.2), 
Says 
