Direct numerical simulation of receptivity and stability of hypersonic boundary layers is carried out. Several configurations (flat plate, sharp and blunt cone, compression corner, wavy wall) and different types of induced disturbances (fast and slow acoustic waves, vorticity and entropy waves, temperature spottiness, local periodic blowing-suction, temperature irregularity of the surface) are considered. The results predicted by numerical simulations are compared with theoretical ones. Possibility of suppression of high-frequency disturbances in the hypersonic boundary layer by porous coatings is considered.
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