叶栅试验技术综述

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...

Review of the cascade experimental technology

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.