Xiaogang Zheng  , Yiqing Li  , Chengxiang Zhu  ,Yancheng You

DOI Number XXX-YYY-ZZZ

Conference Number HiSST 2018-0852

A three-dimensional bump was generated based on the theory of conical waverider at Mach 6，which was applied to analyse the internal and external flow field as well as the low-speed starting characteristic of hypersonic inlets. The effect of separation control was discussed in detail. And the effect of 3D bump on the lift-drag characteristic of hypersonic inlet was considered as well. The results showed that the designed 3D bumps based on the theory of conical flow can play an effective role in boundary layer displacement. An optimized 3D bump can improve the low-speed starting characteristic of the inlet as the captured boundary layer is reduced by 9.3%, and meanwhile the lift-drag ratio is increased by 16.7%.

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In Categories: Aircraft Design, HiSST 2018, Hypersonic Aerodynamics, Materials and Structures
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