Application Area of Fundamental Knowledge about the Flow Around a Wing at Low Reynolds Numbers

The work is devoted to the review of aircraft that are operated or are in the design stage, whose wings or blades streamline under the condition of low Reynolds numbers. By low Reynolds numbers, it is meant that this number taken along the chord of the aircraft wing at a cruising flight speed is less than Re = 500 000. It is under these flow conditions in the wing boundary layer that specific separation zones appear, the modification of which with the help of an wavy surface of the wing can bring about an improvement in aerodynamic characteristics of the aircraft as a whole.