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The results of an experimental investigation of a turbulent boundary layer with zero-pressure gradient directed toward extending the data base at low Reynolds numbers are presented. The data obtained are concerned primarily with mean-velocity distributions, skin-friction coefficients, and distributions of intensity of the longitudinal-component of the turbulent-velocity fluctuations for Reynolds numbers based on momentum thickness as low as 465. The validity, at low Reynolds numbers, of the semi-empirical laws characterizing the inner and outer regions of the boundary layer is examined.
Purtell et al. (Fri,) studied this question.