FIELD: aviation.
SUBSTANCE: invention relates to aerodynamics of aircraft and aviation. Perforated outer surface of rotation body with combined holes and suction channel comprises outer skin, having plurality of spatially distributed perforations, passing through it, made with possibility to influence air flow, which includes air flow of boundary layer, passing along said external surface. Outer surface of body of revolution body includes combined perforation holes of different geometric shape with different orientation on surface and located below cavity. In lower part of cavities there are suction channels.
EFFECT: invention is aimed at reduction of friction resistance on a streamlined surface.
3 cl, 7 dwg
