For advanced operational aircraft, the two-dimensional (2-D) thrust-vectoring (TV) nozzle effectively improves the flight mobility and post-stall manoevrability. However, its flow capacity decreases when deflecting and cooling air is injected, which impacts the engine’s operating state, including decreasing the fan surge margin and increasing the turbine inlet temperature. Therefore, in order to improve engine performance in the whole flight envelope, this paper studies the matching mechanism of the engine and the cooled 2-D TV nozzle, performance characterisation and control schedule of the nozzle, and an integrated aeroengine/nozzle modeling method is put forward. Based on these, an engine performance simulation model is modified to include a cooled 2-D TV nozzle. The testing results show that applying the nozzle control schedules recommended in this paper avoids the performance degradation when the nozzle deflects. This work advances the field of engine/nozzle integrated modeling, and helps to instruct the simulation and experimentation to better fit the needs of engine modeling and engineering applications.

中文翻译：

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二维推力矢量喷管及航空发动机的建模与控制程序设计

对于先进的作战飞机，二维（2-D）推力矢量（TV）喷管有效地提高了飞行机动性和失速后机动性。然而，当偏转和注入冷却空气时，其流量会降低，这会影响发动机的运行状态，包括降低风扇喘振裕度和提高涡轮入口温度。因此，为了提高发动机在整个飞行包线内的性能，本文研究了发动机与冷却型二维TV喷管的匹配机理、喷管的性能表征和控制方案，提出了一种航空发动机/喷管一体化建模方法。提出。基于这些，发动机性能仿真模型被修改为包括冷却的二维 TV 喷嘴。测试结果表明，应用本文推荐的喷嘴控制方案避免了喷嘴偏转时的性能下降。这项工作推进了发动机/喷嘴集成建模领域，并有助于指导模拟和实验，以更好地满足发动机建模和工程应用的需求。