The hub treatment with a circumferential groove was tested on the stator hub and compared with the casing treatment over the rotor tip for a single stage axial flow compressor.
在单级轴流压气机上，用周向槽式处理机匣在静子内径处进行轮毂处理，与转子尖部机匣处理作类比。
3
Rotor design is comprised of some factors such as hub configuration, blade number, rotor diameter, rotor solidity and airfoil which have effects on helicopter performances.