The effect of bleeding positions and bleeding slot forms on the vortex region and starting performance of hypersonic inward turning inlet was researched. The numerical results indicate that bleeding slot in the downwash region of inward turning inlet can obviously reduce the vortex region on the exit plane

and the bleeding slot in the separation region can efficiently promote inlet starting performance with less mass flow losses. Combined T slot has the best comprehensive bleeding efficiency. Compared with the original inlet

when the relative bleeding mass flow rate is 1.01%

the total pressure recovery coefficient of exit plane increases 12.8%

distortion index decreases 37% on the design point Mach number 6.0. The starting Mach number decreases from 5.2 to 4.1

and self-starting Mach number decreases from 6.2 to 4.8.