轻型航空发动机二级涡轮增压匹配模拟

王艳华; 李云清; 陈小龙; 李波

轻型航空发动机二级涡轮增压匹配模拟

北京航空航天大学交通科学与工程学院,北京 100191

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出版历程
- 收稿日期: 2010-11-09
- 修回日期: 2011-01-14
- 刊出日期: 2011-05-28

Two-stage turbocharging matching of light aero-engine at high altitude

School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 为了使现有轻型航空发动机在海拔高度为10km的高空保持原有动力性不变,需要采用二级涡轮增压,保持发动机在不同海拔高度时稳压腔内的进气密度与海平面的一致.对原发动机在一级涡轮增压的基础上进行二级涡轮增压匹配.这里采用AVL-Boost软件建模,根据实验校验一级涡轮增压模型,然后建立二级涡轮增压模型.考虑小型离心式压气机高海拔工作特性受雷诺数影响,确定了压气机匹配工作点.计算表明,匹配方案可行,原发动机满足飞行设计要求.
- 轻型航空发动机 /
- 二级涡轮增压匹配 /
- 雷诺数 /
- 工作点 /
- 增压匹配模拟 /
- 发动机性能
Abstract: In order to operate the light aero-engine without power loss at altitude 10km,two-stage turbocharging was required to keep the intake air density at in plenum different altitudes the same as that at sea level.AVL-Boost model was built to simulate the working process of single-stage turbocharging engine and the model was verified through relevant experiments.Based on the primary model,the two-stage turbocharging model was built.Considering the effect of Reynolds number on small size centrifugal compressor at high altitude working condition,the matching operating points of each stage compressor were found.The simulation calculation result shows that the matching scheme is suitable for the engine and could achieve design requirements.
- light aero-engine /
- two-stage turbocharging matching /
- Reynolds number /
- operating points /
- turbocharging matching simulation /
- engine performance

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参考文献(14)

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