For numerical predicting turbomachinery flows a two-equation turbulence model in combination with a proper transition model to account for laminar boundary layers and their transition to turbulence is state of the art. is paper presents the ability of such a method (k-ω + γ-Re θ) for turbulence prediction and the effect on three-dimensional boundary layer behavior. For this purpose both applied models (turbulence and transition) are improved to be er account for turbulence length scale effects and three-dimensional transition prediction since these are the main deficiencies in predicting such kinds of flows. The improved numerical physical model is validated and tested on existing turbine cascades with detailed experimental data for the viscous regions and additionally on a low-speed axial compressor rig where wake-induced transition takes place.