空气湿度对跨声速压气机叶栅气动性能的影响  

Effect of atmospheric humidity on the aerodynamic performance of a transonic compressor cascade

作　　者：向宏辉 高杰 侯安平[2] 周一彬 杨泳[3] XIANG Hong-hui;GAO Jie;HOU An-ping;ZHOU Yi-bin;YANG Yong(AECC Sichuan Gas Turbine Establishment,Mianyang 621000,China;School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China;Department of Flight Technology,Civil Aviation Flight University of China,Guanghan 618703,China)

机构地区：[1]中国航发四川燃气涡轮研究院,四川绵阳621000 [2]北京航空航天大学能源与动力工程学院,北京100191 [3]中国民航飞行学院飞行技术学院,四川广汉618307

出　　处：《燃气涡轮试验与研究》2020年第3期1-7,共7页Gas Turbine Experiment and Research

基　　金：民用飞机专项科研项目(MJ-2016-J-96);四川省应用基础研究项目(2017JY0040)。

摘　　要：为了解空气湿度变化对高负荷跨声速压气机叶栅气动性能的影响,采用吹风试验和数值模拟相结合的方法,开展了空气湿度对跨声速叶栅性能影响研究。结果表明:空气湿度对叶栅气动性能的影响程度与叶栅自身的工作状态有关,在高进口马赫数和大攻角工作条件下,空气湿度会弱化叶栅的增压能力,增大流动损失。空气湿度对跨声速叶栅气动性能的影响与湿空气中的非平衡凝结相变现象有关,湿空气凝结放热会对流场产生加热作用,从而引发额外的压力损失,且影响区域主要集中在成核率较高的叶栅通道内。In order to understand the effect of atmospheric humidity on the aerodynamic performance of high load and transonic compressor cascade, the study of atmospheric humidity effect on the performance of transonic compressor cascade was carried out by means of air blowing test and numerical simulation. The results show that the effect degree of atmospheric humidity on the aerodynamic performance of cascade is related to the operating condition of cascade itself. Under the operating condition of high inlet Mach number and high positive attack angle, atmospheric humidity will weaken the pressurizing capacity and increase the flow loss of cascade. The effect of atmospheric humidity on the aerodynamic performance of transonic cascade is related to the non-equilibrium condensation phase transition phenomenon of wet air. Due to the effect of heat released by condensation of wet air on the flow field, the additional pressure loss is caused, and the effect area of wet air is mainly concentrated in the cascade passage with higher nucleation rate.

关 键 词：航空发动机 压气机叶栅 空气湿度 气动性能 凝结 试验研究 数值模拟 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]