<p>This paper examines the statistical parameters of the TBL flow developing on concave and convex walls within a wind tunnel test chamber. The aim is to analyze the behavior and statistical properties of the turbulent velocity components and to assess how wall curvature influences these characteristics. Turbulent normal and shear velocity components are measured at five different positions across the width of the channel. Then, CDF, PDF, kurtosis, and skewness are calculated to evaluate the statistical variations in the velocity fluctuations. Specifically, the impact of wall curvature on the behavior of the turbulent velocity components is analyzed. The results indicate that the wall curvature has a significant impact on the probability distribution of velocity fluctuations. In concave walls, an increase in turbulence intensity and a change in the symmetry of the PDF are observed, whereas in convex walls, a decrease in turbulence intensity and a tendency towards non-Gaussian distributions are more pronounced. The analysis of skewness and kurtosis shows that in regions with positive curvature, the data distribution tends to exhibit asymmetric behavior, indicating a change in the core structure of the turbulent flow. These changes in different regions indicate the formation of distinct vortical structures and their impact on mixing phenomena and momentum transfer. Additionally, it is revealed that changes in the normal and tangential velocity components are differently affected by wall curvature, which significantly impacts the turbulent structures and their statistical distribution.</p>