This paper presents a numerical study, using a large eddy simulation approach of a turbulent, three-dimensional, incompressible isothermal flow through a linear cascade of identical blades, similar to that studied experimentally by Adjlout and Dixon [18]. The characteristic distances are 17.46cm pitch, 27.50cm chord and 64.90cm span. The computational domain considered in the present work consists of two blades with periodicity conditions imposed at the pitchwise boundaries, i.e., above the suction side of the upper blade and below the pressure side of the lower blade. The spanwise boundaries are parallel endwalls representing the hub and the casing. The inlet conditions are prescribed at a position 13mm upstream of the leading edge of the blades, namely, a uniform velocity of 4 m/s, a turbulent intensity of 0.9% and a 40mm thickness of the boundary layer on the endwalls. The Reynolds number based on the momentum thickness on the endwalls at inlet is  The CFD code FLUENT is used to carry out the simulations with the aim of bringing deeper insight into the aerodynamics in such a complex geometrical configuration. The emphasis here is placed on the analysis of the mean three-dimensional fields of velocity, pressure and turbulent kinetic energy. Interesting flow features are observed upstream of, between and downstream of, the blades and near the endwall.

3D flow, mean field, blades, linear cascade, turbulence, LES, simulation.