Planar passive ventilation navigation body model and use method thereof

According to the plane type passive ventilation navigation body model and the using method thereof, various practical problems of passive ventilation in the passive exhaust and water outlet process of a navigation body are solved, and the adverse effects of a cavitation water tunnel experiment and a normal-pressure water tank experiment are overcome. The device comprises a head area, an air cavity area and an outer cylinder area, the head area comprises a cavitation suppression head type, a circle of exhaust holes are evenly formed in one side of a constant-volume inflation chamber in the air cavity area, and the lower end of the constant-volume inflation chamber is connected with a connecting plate; an air storage tank is installed in the outer cylinder in the outer cylinder area and communicated with the constant-volume inflation chamber through an air pipe, a wing-shaped supporting arm is installed on the side face of the outer cylinder, one end of the wing-shaped supporting arm is connected with the outer