A numerical study of vortex generator jet application in bowed compressor cascades shows that

vortex generator jets with several kinds of parameters for both positively and negatively bowed blade can reduce the total loss at most by 2.5% and 8.8% respectively. Moreover

the result reveals that the jet can not only apply momentum to boundary layer

but also create a streamwise vortex

which can deflect the passage vortex to make it rotate away from the suction side. The streamwise vortex is dissipated in the flow passage at 60% axial chord length from the leading edge. For positively bowed blade

the flow separation disappears on the suction side

and the concentrated shedding vortex is weakened for negatively bowed blade. Besides

the jet increases the blade loading and turning angle.