| 摘要: |
| 在发动机性能模拟中引入雷诺数对发动机部件性能影响的修正, 分析了某大涵道比涡扇发动机用作高空长航时无人机动力装置时, 雷诺数对调节计划和性能的影响。通过数值计算获得了在高空条件下发动机推力、耗油率、转速以及涡轮前温度等重要特性受雷诺数影响的变化情况, 为高空长航时无人机动力选型提供了参考依据。针对该类型发动机特点, 提出了改善发动机性能的措施。 |
| 关键词: 高空长航时无人机发动机+ 雷诺数 调节计划+ 性能 |
| DOI： |
| 分类号:V235.113 |
| 基金项目:英才培养计划基金 (04XD0103) |
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| Effects of Reynolds number on control schedule and performance of HALE engine |
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TU Qiu-ye, CHEN Yu-chun, SU San-mai, SHANG Xu-sheng
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School of Power and Energy,Northwestern Polytechnical Univ., Xi’an 710072,China
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| Abstract: |
| Taking the Reynolds number into account, the components’ performances were modified in performance simulation of a HALE engine.The effects of Reynolds number on engine thrust, specific fuel consumption and control schedule at high altitude, low Mach number flight conditions were obtained by numerical simulations. The results provided theoretical references to the selection of HALE engine. According to the features of HALE engine, approaches were put forward to improve the engine performance at high altitude, low Mach number flight condition. |
| Key words: HALE engine~+ Reynolds number Control schedule~+ Performance |
