This is the data for "Relaxation of the Turbulent Boundary Layer
After an Abrupt Change from Rough- to Smooth-Wall"  by Robert P. Taylor, 
J. Keith Taylor, M. H. Hosni, and Hugh W. Coleman.  

	The data in Figures 2 and 4 are given in the files "all_r??.dat" 
for the all rough data and in files "r_t0_s??.dat" for the rough-to-smooth 
data.  The data are the raw data in the following format

	No.	y	u	u'
	       in.     ft/s    ft/s

where y is the distance from the base wall, u is the velocity, and u' is the
longitudinal velocity fluctuation.  The number in each file name refers to 
the plate number.  The test surface was divided into 4 inch plates.
For example, file "all_r10.dat" contains the data for plate 10.  The data 
were taken over the plate centerline; so, the formula to compute the axial 
distance, x, in inches is 

	x = (N-1)*4 + 2

	
	The files cf_all_r.dat, cf_r_t_s.dat and cf_smth.dat contain
the skin friction coefficient data in Figure 5.  The format is 

	x	cf
        m      d'less

	The data for the inner region coordinate (u+,y+) in Figure 3 are a 
combination of the data in the files "r_to_s??.dat" and "cf_r_to_s.dat"

	u+ = u/(U sqrt(cf/2))
	y+ = yu*/nu

where U is the freestream velocity and nu is the kinematic viscosity.