Numerical simulations of the 2D supersonic flow through the tip-section turbine blade cascade with a flat profile

Abstract

Numerical simulations of 2D compressible flow through the tip-section turbine blade cascade with a flat profile and the supersonic inlet were carried out by the OpenFOAM code using the Favre-averaged Navier-Stokes equations completed by the γ-Reθt bypass transition model with the SST turbulence model. Predictions completed for nominal regimes were concentrated particularly on the effect of the shock-wave/boundary layer interaction on the transition to turbulence. Further, the link between the inlet Mach number and the inlet flow angle, i.e., the so called unique incidence rule was studied. Obtained numerical results were compared with experimental data covering optical and pressure measurements.

Keywords

• supersonic tip-section blade cascade
• cfd
• transition modelling