Rotorcraft and a centrifugal compressor equipped with this rotorcraft

摘要

The rotor includes a hub and a plurality of blades provided on the hub, and each of the plurality of blades has a negative pressure surface, a pressure surface, a front edge, a trailing edge, a tip side edge, and a hub side edge. The negative pressure surface is convex toward the trailing edge so as to move the trailing edge toward the pressure plane in the first region, which is a part of the region connected to the trailing edge in the blade height direction. Includes the first curved surface portion curved in a shape.