Ftnk and Naudascher 
by experiments for related flow configurations, so that it can be as- 
sumed valid in this case as well. 
* 
If the local Reynolds number IR = is large , but not 
exceeding the critical one, the stationary flow of an incompressible, 
isothermal fluid which is not affected by external forces is represent- 
ed by following set of equations : 
d(uy?) alvy!) 
SME TET re ia 
ou Owe h 1 op =j'0 (y?+/p) . _ Fson8 
us + 35 5 aaa + y ay with 1/p 5 (2a) 
LOB 
wR apt mo 
=) oe Ve Oat. Vom 0), oaliick 
1 
where x and y are Cartesian coordinates (x in the direction of 
flow, measured from the geometrical origin of the flow) and u and 
v are the velocity components in the x and y directions, respecti- 
vely. For plane symmetry, j=0, and for axisymmetric conditions, 
i= 1.0 .(see Figure. 1), 
Integration of Eq. 2a first over a lateral distance yp and 
then with respect to x between the boundaries x' and x in conjunc- 
tion with the boundary conditions 
TO 8 Ue POU, =4 (= for wre V5 
bs For definition of symbols, see Nomenclature. 
1788 
