Experimental investigation of a flow developing in a circular tube at various levels of turbulence. 2. Analysis of experimental results

Experiments on a boundary layer developing in a circular tube were carried out at low (0–1.5%) and high (4–17%) levels of turbulence. New data were obtained on such characteristics as the distribution of the autocorrelation coefficients, spectral densities of longitudinal velocity fluctuations, and the distribution of the form parameter, momentum flux, blockage factor, and skin friction coefficient.