High-order discontinuous Galerkin solution of the RANS and explicit algebraic Reynolds stress Κ–Ω equations in turbomachinery flows

Authors

F. Bassi, L. Botti, A. Colombo, N. Franchina - University of Bergamo, Ghidoni, A., Rebay, S.
University of Brescia, Nigro, A. - University of Calabria, Italy

Abstract

The objective of this work is to show the effectiveness of a high-order accurate Discontinuous Galerkin (DG) space discretization in the numerical simulation of the 3D compressible turbulent flow through a turbine cascade (MTU T106A). The turbulent flow field is computed by means of the Reynolds Averaged Navier-Stokes (RANS) equations with closure provided by the &kappa–&omega turbulence model and an Explicit Algebraic Reynolds Stress Model (EARSM). Results obtained with both models will be analysed and compared.