  This study presents a numerical simulation of a 3D viscous flow in the
VKI-Genoa cascade that takes into account the laminar-turbulent transition. The
numerical simulation is performed using the Reynolds-averaged Navier-Stokes
equations and the two-equation k-omega SST turbulence model. The algebraic
Production Term Modification model is used for modeling the laminar-turbulent
transition. Computations of both fully turbulent and transitional flows are
carried out. The contours of the Mach number, the turbulence kinetic energy,
the entropy function, as well as limiting streamlines are presented. The
analysis of the numerical results demonstrates the influence of the
laminar-turbulent transition on the secondary flow pattern. The comparison
between the present computational results and the existing experimental and
numerical data shows that the proposed approach reflects sufficiently the
physics of the laminar-turbulent transition in turbine cascades.
