Di Lu , Fang Chen, Igor N. Borovik,  Hong Liu

DOI Number XXX-YYY-ZZZ

Conference Number HiSST 2018-390987

The dual-mode scramjet seems to be a promising propulsion system of high-speed aircraft that is designed to perform well in a wide range of flight conditions. Two typical mechanisms have already been proposed to achieve mode transition including variable geometry without thermal choke and fixed geometry with thermal choke. However, the former brings about the problem of complex structure and overweight, while the latter faces the challenge of heat regulation and narrow operation range. In this paper, a generic freejet engine has been explored to find a better way to operate in a wider range. Numerical studies with CFD ++ 2D RANS solver pave the way for the wide-range operation of dualmode scramjet burners.

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In Categories: HiSST 2018, Hypersonic Aerodynamics, Hypersonic Propulsion, Propulsion Systems and Components
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