Yingchen LIU, Feng GUO, Jianfeng ZHU, Yancheng YOU

DOI Number: XXX-YYY-ZZZ

Conference number: HiSST 2024-0085

Ramjet engines encounter the challenge of selecting an appropriate cross-sectional area (A3) of the combustion chamber while operating across a broad speed range. At each flight Mach number, there is a corresponding optimal cross-sectional area of the combustion chamber. When the cross-sectional area is either too large or too small, it becomes challenging to organize proper combustion or results in excessive windward resistance, thereby hindering the engine from achieving optimal performance in both lower and higher Mach flight conditions. When acceleration is insufficient, it can be adjusted by trajectory optimization. In the study, trajectory optimization of the vehicle is used to assist in designing the appropriate size of the combustor cross-section of the ramjet engine. The purpose of this study is to enhance the vehicle’s propulsion efficiency during the climb phase and extend the range of the hypersonic transport.

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In Categories: 1.Events, High-Speed Missions and Vehicles, HiSST 2024
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