LES Study of Shock Wave and Turbulent Boundary Layer Interaction

nx The large eddy simulation (LES) of a compression ramp shock wave and turbulent boundary layer interaction (STBLI) is presented. The ramp angle is 24 and the incoming boundary layer ow conditions are Mach 2.9 and Re 2900. The LES data are in good agreement with existing direct numerical simulation (DNS) data with the same incoming ow parameters. The accuracy and reduced resolution requirements of the LES as compared to the DNS enables the ability to resolve the aperiodic cycle of the low-frequency unsteadiness characteristic of these ows.