1320 
to determine the value of nin for which the reflected 
pressure F is a minimum for given F « Thus 
2 M 
cos Amin. =O oL 
with M=2 \/LN 
The minimum solutions for Xo = 2.00 and 1.40 are given in 
Table 5; those that exist for y = 7.15 are not in the region 
of physical interest. The limiting value of Oe. for weak 
shocks ( F-»1) is the same as that for an ideal gas 3) 
having the same y » namely 
Bin’ OC an. —> 1 - yn 
TABLE 5 
"Minimum" Solutions 
= 2.00 y= 1.40 
O.l 4.393 26292 20295 4.046 38.73 22°64 
0.2 3.139 24590 20°87 3.371 35.635 24°00 
0.3 2.504 23°83 20°86 2.622 33044 24°87 
0.4 6 BsO94e0 9 2HS14)0/ 20588 2.156 $2016 © 25°55 
0.5 1.796 22564 20°94 1.830 31°17 26012 
0-6 1.568 22627 21202 1.585 30239 26.63 
0.7 1.385 22200 21211 1.393 29°76 27210 
0.8 1.234 21°79 2122 1.237 29222 27254 
Occe108 21558 ‘e1ese2 1.108 28.78 27.296 
MeO) 62.000. (21047 5 o 21047 1.000 28°34 28°34 
