标题：
Numerical simulation of post-stall transients in turbofan engine
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所属单位：
能源与动力学院
发表刊物：
Tuijin Jishu
摘要：
A two-dimensional unsteady numerical method has been performed to simulate the post-stall transients in turbofan engine. By assigning different initial work points and different types of disturbances, the process of the turbofan engine stepping in and out of surge or rotating stall was simulated. The results of numerical computation indicate that the new method can simulate the basic features of surge and rotating stall. It can be used to predict the oscillation frequency and intensity of surge signal, also the propagating frequency and the development in engine flow path of the rotating stall cell. When the rotating stall is fully developed in the engine, the stall cells all over the engine share the same circumferential propagating frequency, while their intensity is different. The stall cells at the inlet and outlet of the engine are weak, while the stall cells at the inlet of the compressors and the outlet of the low pressure turbine are strong. © 2017, Editorial Department of Journal of Propulsion Technology. All right reserved.
ISSN号：
1001-4055
是否译文：
否
发表时间：
2017-01-01
合写作者：
严伟,杨帆,屠宝锋
通讯作者：
严伟,胡骏
发表时间：
2017-01-01
学位：工学博士学位
职称：教授
所在单位：能源与动力学院