基于F级燃机压气机的跨音级特性数值分析

摘要

以F级重型燃气轮机压气机的跨音级为研究对象,采用三维数值模拟方法计算了不同转速下压气机的性能曲线,并在设计转速下,对其内部流场进行了分析研究.研究结果表明:所使用的计算方法能够很好地计算出跨音级压气机全工况特性,并通过典型工况点的计算,研究了跨音级叶栅内部流动的特点,为跨音级的改进设计工作提供依据.%A numerical study is carried out to calculate the characteristic curve at different rotational speed of a transonic compressor stage of a class F gas turbine,then the flow field in the compressor at the design rotational speed is analyzed.The results show that the overall performance was calculated accurately through the computing method adopted in the paper,and investigated the characteristics of the flow field of the transonic compressor under the specific operating conditions in order to improve aerodynamic design of the transonic compressor later.