Assessing Klebanoff’s data

In 1955, Klebanoff published the first full set of turbulence stress measurements in a zero-pressure-gradient boundary layer (Klebanoff characteristics of turbulence in a boundary layer with zero-pressure gradient. NACA Report 1247, 1955). These results have achieved landmark status, and they are still widely used for comparisons with measurements and computations. The purpose of this paper is to show that these data are inaccurate in a number of ways, and that future comparisons should avoid using these results.