TRANSONIC AIRFOIL AND AXIAL FLOW ROTARY MACHINE

摘要

Sectional profiles close to a tip 124 and a part between a midportion 125 and a hub 123 are shifted to the upstream of an operating fluid flow in a sweep direction. Accordingly, an S shape is formed in which the tip 124 and the part between the midportion 125 and the hub 123 protrude. As a result, it is possible reduce various losses due to shock waves, thereby forming a transonic airfoil having an excellent aerodynamic characteristic.