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A numerical computation was performed of an oblique shock wave impinging on turbulent boundary layer developing on a flat surface. The free stream flow was at M∞ = 2.0 with unit Reynolds number, Re = 10.5x106 m-1. A wedge having an angle of 8° with the free stream flow was used to generate the oblique shock wave. Three dimensional Reynolds averaged Navier-Stokes (RANS) steady simulation with k-ω SST turbulence model was used. The numerically obtained results were validated with experimental data obtained at same flow conditions. Periodic waviness was introduced to a portion of the wall to investigate its effect on shock wave turbulent boundary layer interaction. The geometry of wall waviness was characterized by amplitude and number of cycles. Different cases were studied by varying the amplitude of waviness. The presence of wall waviness affected shock structure and flow separation patterns. Variations of flow properties with respect to waviness amplitude were also studied. [ABSTRACT FROM AUTHOR]

A numerical computation of an oblique shock wave incident on a turbulent boundary layer was performed for free stream flow of air at M∞ = 2.0 and Re1= 10.5×106 m-1. The oblique shock wave was generated from a 8° wedge. Reynolds averaged Navier-Stokes (RANS) simulation with k-ω SST turbulence model was first utilized for two dimensional (2D) steady case. The results were compared with the experiment at the same flow conditions. Further, to capture the unsteadiness, a 2D Large Eddy Simulation (LES) with sub-grid scale model WMLES was performed which showed the unsteady effects. The frequency of the shock oscillation was computed and was found to be comparable with that of experimental measurement. [ABSTRACT FROM AUTHOR]