1291 
INTERACTION OF SHOCK-WAUES 
“IN WATER-LIKE SUBSTANCES — 
one PLANE SHOCK=-WAVES IN WATER-LIKE SUBSTANCES 
1) oP 
It is desired to determine the interaction 
shock-waves colliding in a water-like substance. The followe- 
ing theoretical discussion will be restricted to constant, 
plane shocks in liquids of negligible viscosity and thermal 
conductivity; it can also be applied, however, in the 
neighborhood of the line of contact for shock=-waves that are 
not too curved. For convenience the usual development of 
the equations for a plane shock will be repeated here. 
Fig. 1 
_a_ De 
a a G. 
? sw “Po , Vo wis ff 2% 
V U-V U 
aod 
—————> 
The plane shock-wave I (cf. fig. la) is moving 
with constant velocity in a liquid that is initially at rest. 
Let the state of the undisturbed liquid be specified by its 
pressure py, and its specific volune “vy The state of the 
(oy 
liquid behind the shock-front will, in turn, be determined 
by its pressure p and its specific volume*v. Let V designate 
* dens EY [apy Ba 
2 
Sz 
