Pneumatic sail display device based on flow resistance action principle

The utility model relates to the field of science popularization display, in particular to a pneumatic sail display device based on a flow resistance action principle. Comprising a ship body which is arranged on a sliding rail of a base and can linearly slide along the sliding rail; the sail is installed on the ship body, an adjusting rod connected with the sail surface is arranged on the sail in the direction parallel to the sliding rails, and the adjusting rod can move in the length direction of the sliding rails so as to change the shape of the sail surface; the wind source is arranged at the upstream end of the ship body and can apply wind power to the sail, and the wind power direction of the wind source is parallel to the sliding rails; the dampers are arranged on the sliding rails and apply thrust opposite to the wind force to the ship body so that the ship body can be kept in a static state on the sliding rails; according to the utility model, the shape of the sail can be changed in real time in the w