Abstract:

The process of investigation into transonic fan/compressor rotors aerodynamic load is reviewed, and the 3D flow field of the baseline rotor and two new rotor projects are researched. The aerodynamic load coefficient of transonic fan rotor has reached 0.65,as obtained through comparison research on 195 projects which aim at improving the transonic fan rotor aerodynamic load. The results show that in the same inlet flow condition, higher aerodynamic load near shroud can be achieved by organizing the shock wave, high turning angle near hub is a feasible approach to the increase of aerodynamic load, and the transonic stator is the inevitable outcome of improving the aerodynamic load of transonic fan/compressor rotors.

Key words: transonic flow, fans, compressors, rotor, aerodynamic load