Effect of inlet turbulence on compressible flow through the tip-section turbine blade cascade with supersonic inlet

Abstract

Abstract. The contribution deals with the numerical simulation of 2D compressible flow though the tip-section turbine blade cascade with the supersonic inlet boundary conditions. The simulation was carried out by the in-house numerical code using the explicit algebraic Reynolds stress model completed by the bypass transition model with the algebraic equation for the intermittency coefficient. The -Re model implemented in the commercial code Fluent was used for the comparison. Predictions carried out for the nominal conditions were focused on the effect of inlet free-stream turbulence on the flow structure in the blade cascade under supersonic inlet conditions. Numerical results were compared with experimental data.

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

“…Numerical simulations of the 2D compressible flow in a turbine blade cascade with the supersonic inlet were realized for the cascade TR-U-8 representing the tip-section of the rotor blade with a flat profile. The contribution is a follow up to simulations made by Luxa et al [6] and Straka et al [10]. Simulations were accomplished by the RANS approach based on the Favre-averaged Navier-Stokes equations completed by the two-equation SST turbulence model and the γ-Re θt bypass transition model implemented in the OpenFOAM code.…”

Simulation of Supersonic Flow Through the Tip-Section Turbine Blade Cascade With a Flat Profile

“…The contribution deals with the numerical simulation of the compressible flow through the linear blade cascade TR-U-8 representing one of variants of the tip-section of the rotor blade cascade and it is a follow up to simulations made by Luxa et al [4] and Straka et al [5]. Simulations were carried out by the OpenFOAM code using the Favre-averaged Navier-Stokes equations completed by the two-equation SST turbulence model and the -Re  bypass transition model.…”