

Article
The diagnostic plot — a litmus test for wall bounded turbulence data
Authors: 
Alfredsson, P.H., Örlü, R. 
Document Type: 
Article 
Pubstate: 
Published 
Journal: 
Eur. J. Mech. B/Fluids 
Volume: 
29
403406 
Year: 
2010 
AbstractA diagnostic plot is suggested that can be used to judge wall bounded turbulence data of the mean and the rms of the streamwise velocity in terms of reliability both near the wall, around the maximum in the rms as well as in the outer region. The important feature of the diagnostic plot is that neither the wall position nor the friction velocity needs to be known, since it shows the rms value as a function of the streamwise mean velocity, both normalized with the free stream velocity. One must remember, however, that passing the test is a necessary, but not sufficient condition to prove good data quality.
http://dx.doi.org/10.1016/j.euromechflu.2010.07.006

