The three-dimensional turbulent flow field at the exit of an axial single rotor compressor has been measured in detail with single-slant hot-wire probe.In the design condition

substantial turbulent pulsations mainly exist in the tip mid-passage

wake and the corner between the suction surface and the hub

and the tip leakage vortex plays a leading role in the tip flow mixing.In the near stall condition

the flow becomes more turbulent

which shows the strong flow mixing in the tip region

turbulence intensities

especially the radial turbulence intensity

increase rapidly;the flow separations of the boundary layer on the suction surface occur at 0.25 span and 0.87 span.At the rotor exit

the radial turbulence intensity is the largest

and the axial one is the second.