Karel VAN DEN BORRE, F. PETTINATO, Bayindir Huseyin SARACOGLU

DOI Number: 10.60853/hbh4-dk34

Conference number: HiSST-2024-00131

Expander-type Air-Turbo-Rocket (ATR) engines combine the characteristics of rocket engines and conventional air-breathing Brayton cycles, which provide them with excellent performance in terms of specific thrust and impulse over a wide range of altitudes and flight Mach numbers. The maximum flight Mach number is extended compared to other turbine-based cycles by removing the turbine from the hot airflow path. This combination of properties makes them particularly well suited for high-speed supersonic aircraft or the air-breathing ascent stage of spaceplanes. This work re-examines architectures previously studied in on-design steady conditions by including the off-design behaviour in fully transient simulations. The implementation of the required control mechanisms to stabilise and regulate the engine is included, which allows for assessing the feasibility of a more practical engine implementation and for examining the operability margins along the acceleration phase of a high-speed cruiser aircraft.

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In Categories: 1.Events, HiSST 2024, Propulsion Systems and Components
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