叶栅试验技术综述  

Review of the cascade experimental technology

作　　者：凌代军 代秋林 朱榕川 王晖 赵建通 LING Daijun;DAI Qiulin;ZHU Rongchuan;WANG Hui;ZHAO Jiantong(Sichuan Gas Turbine Establishment,Aero Engine Corporation of China,Mianyang Sichuan 621000,China)

机构地区：[1]中国航发四川燃气涡轮研究院,四川绵阳621000

出　　处：《实验流体力学》2021年第3期30-38,共9页Journal of Experiments in Fluid Mechanics

摘　　要：叶型设计是现代航空发动机和燃气轮机气动热力领域最基础的研究内容,叶栅试验是叶型设计方法探索、工程设计验证中经济快捷的重要工具,在现代航空发动机压气机和涡轮叶型气动设计研究中发挥了重要的作用。试验环境和条件的模拟是叶栅试验技术的核心和关键,随着叶型设计技术发展与叶型性能的进步,叶栅试验技术亟需在流场周期性、轴向密流比、三维效应、低雷诺数以及非定常效应等环境模拟方面进行拓展和完善,以便更准确可靠地获取叶型总性能的变化规律,为研究引起性能变化的流动机理和流场特征奠定基础。本文概述了叶栅试验技术发展历史,并对近年来技术研究新方向、新领域进行分析,以期为相关研究提供参考。Profile design is the basis of modern aero engine and gas turbine aerodynamic and thermodynamic research.As an economic tool,cascade test can be used to explore the profile design method and verify the engineering design in a short time.It plays an important role in the modern compressor and turbine aerodynamic design.The simulation of experimental environment and state is the key of cascade experiment.With the development of the profile design technology and the improvement of cascade performance,profile tests should be expanded and improved to get the variation rules of the profile total performance more accurately and reliably,such as the flow periodicity control,Axial velocity density ratio,3D effect,low Reynolds number,unsteady flow etc.,which would lay the foundation for the research of flow mechanism and flow characteristics that leads to performance change.The history of cascade experimental technology development is introduced in this paper,and the recent research orientations and hotpots are analyzed to provide a reference for relevant studies.

关 键 词：叶栅 流场 周期性流动 低雷诺数 三维特性 非定常 

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]