Theory of Stability of Laminar Flow 461 
r 
teste) 
aC E) = = Oy. . (4.16) 
a 
y 2 1 
Oe ode), = 28 & (8) een T\2 5 : 
Jam OF (=) ae (4.17) 
a 
The quantity I"/d is the ratio of the wavelength of the disturbance in the boundary layer to 
the wavelength in the coating. One of the points of interest will be to consider the effect 
of a large difference between these two wavelengths and also what the behavior will be 
when these two wavelengths are close together. 
If we calculate the corresponding dimensionless compliances, we obtain 
is 
we oi! oi? a ire Me) —2 = 
Wort Se ae)” si Virmanktbio: Wo Bal CH 
q = 1 Vv -1 
f be if sy 
je, we UB. of &) p ee akey oP aU : for x >> 1 
2 Ws ae. © enya m4 aL 
ie a f m4 
eee 2): AD) Py th Dlaie? R@5)) p E see 
eke os 8 (8) 1 oe wiee er SAGE) ie 1 
Jar F ye sie ip Es Sn 
a Vv 
2 2 Ba 6 (5) 7? 4 3 we 8 (Af) 9 r 
on 2 F Am. = Jan G F PY mn? for 7 a | 
=_- =_ —_. __ 
646551 O—62——31 
