An aerodynamic design method combined with boundary layer suction was proposed for counter-rotating compressor. For high-loaded compressor

because of the problems (such as strength problem) caused by boundary layer suction used in the rotating parts

the boundary layer suction was used only in the stator

while the rotor was designed by the low reaction design principle to ensure its efficiency based on the increasing rotor exit axial velocity. A counter-rotating compressor was designed to demonstrate the method above. The three dimensional viscous numerical simulation results show that

two-stage counter-rotating compressor with total pressure ratio of 5.85 and efficiency of 88% is attained at tip tangential speed 370m/s of the first rotor and 350m/s of the second rotor.