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System Analysis and Optimization of the CIRSTEL Tail Boom

机译:CIRSTEL尾臂系统分析与优化

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This paper details the development and results of a one-dimensional numerical model to simulate Combined Infrared Suppression and Tail Rotor Elimination (CIRSTEL) helicopters in hover. Ultimately the model was used to perform a simple numerical optimization of the system, with the objective of minimizing the power requirement by the system. The current model incorporates an engine model to check and define parameters that minimize any effects the system may have on the engine. Case studies on single- and twin-engine light helicopters were completed. The results show that the system offers a potential power demand reduction over a conventional tail rotor by up to 35%, while reducing the thruster exhaust gas temperature to below 170℃. It is also shown that through careful designing and sizing of the mixer nozzle the effects on the engine can be negligible while still boosting the performance of the tail thruster.
机译:本文详细介绍了用于模拟悬停的组合式红外抑制和尾桨消除(CIRSTEL)直升机的一维数值模型的开发和结果。最终,该模型用于对系统进行简单的数值优化,目的是使系统的功率需求最小化。当前模型包含一个引擎模型,以检查和定义参数,以最大程度地减少系统对引擎的影响。单引擎和双引擎轻型直升机的案例研究已经完成。结果表明,与传统的尾桨相比,该系统可将功率需求降低多达35%,同时将推进器废气温度降低到170℃以下。还表明,通过仔细设计和调整混合器喷嘴的尺寸,对发动机的影响可以忽略不计,同时仍可提高尾部推进器的性能。

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