HIGH-LIFT-DEVICE, WING, AND NOISE REDUCTION DEVICE FOR HIGH-LIFT-DEVICE

摘要

Disclosed are a high-lift-generating device, a wing, and a noise-reduction device for the high-lift-generating device, which aim to reduce noise generated when flaps are deployed, suppress degradation of aerodynamic characteristics when the flaps are retracted, and suppress an increase in weight, and which are provided with a flap body (5) disposed in a deployable/retractable manner to a main wing, and a protrusion (6A-1) that protrudes smoothly in the direction away from the flap body (5) and is in the vicinity of at least one end of the pressure surface (PS) of the flap body (5). The protrusion smoothly increases from a leading edge side toward an intermediate portion, smoothly decreases from the intermediate portion toward the trailing edge, smoothly increases from the end portion toward the intermediate portion, and smoothly decreases from the intermediate portion.