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This study presents a numerical simulation of a 3D viscous flow in theVKI-Genoa cascade that takes into account the laminar-turbulent transition. Thenumerical simulation is performed using the Reynolds-averaged Navier-Stokesequations and the two-equation k-omega SST turbulence model. The algebraicProduction Term Modification model is used for modeling the laminar-turbulenttransition. Computations of both fully turbulent and transitional flows arecarried out. The contours of the Mach number, the turbulence kinetic energy,the entropy function, as well as limiting streamlines are presented. Theanalysis of the numerical results demonstrates the influence of thelaminar-turbulent transition on the secondary flow pattern. The comparisonbetween the present computational results and the existing experimental andnumerical data shows that the proposed approach reflects sufficiently thephysics of the laminar-turbulent transition in turbine cascades.

The Numerical Simulation of a 3D Flow in the VKI-Genoa Turbine Cascade Taking into Account the Laminar-Turbulent Transition