Cross-correlation measurement of disturbance initiated by weak shock wave in the flat plate boundary layer with blunt leading edge at Mach 2

An experimental measurement of the cross-correlation between free flow pulsations and disturbances of the boundary layer of a flat plate with a blunted leading edge at Mach 2 was performed. Measurements were carried out using a constant temperature hot-wire anemometer in the region of shock waves from a two-dimensional roughness installed on the surface of the test section, as well as in the region of vortices in the boundary layer. In the course of the experiment, the correlation coefficient distributions were obtained over cross-sections along the leading edge in the free flow and boundary layer.