Various bleeding cases with slots and holes were designed for a side-compression hypersonic inlet

and the numerical simulation was conducted.The results show that the self-starting characteristics of the inlet can be significantly improved

and bleeding in the separation zone of the inlet has the best effects.The self-starting Mach number of the inlet was reduced from 4.6 to 3.7 in the research.The inlets with different attack angles were tested in the wind tunnel at the flow condition of Mach 4.The experimental results confirmed the bleeding effects on the improvement of the self-starting characteristics of the inlet.