叶栅试验技术综述

凌代军; 代秋林; 朱榕川; 王晖; 赵建通

doi:10.11729/syltlx20200102

叶栅试验技术综述

doi: 10.11729/syltlx20200102

中国航发四川燃气涡轮研究院, 四川绵阳 621000

详细信息

作者简介:
凌代军(1971-), 男, 四川资阳人, 研究员。研究方向: 叶型试验与分析, 叶轮机及部件试验技术。通信地址: 四川省绵阳市游仙区小枧镇航空路1号叶轮机试验研究室(621000)。E-mail: gteldj@163.com

通讯作者:
凌代军, E-mail: gteldj@163.com

中图分类号: V231.3
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出版历程
- 收稿日期: 2020-08-02
- 修回日期: 2020-12-15
- 刊出日期: 2021-06-25

Review of the cascade experimental technology

Sichuan Gas Turbine Establishment, Aero Engine Corporation of China, Mianyang Sichuan 621000, China

摘要

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。
- 叶栅 /
- 流场 /
- 周期性流动 /
- 低雷诺数 /
- 三维特性 /
- 非定常
Abstract: 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.
- cascade /
- flow field /
- flow periodicity /
- low Reynolds number /
- 3D characteristics /
- unsteady flow

HTML全文

图 1 叶栅原理示意图

Figure 1. schematic diagram of cascade

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图 2 叶型设计对压气机压比和效率影响趋势

Figure 2. The influence of profile design on compressor pressure ratio and efficiency

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图 3 叶栅试验段上下驻室面长度偏差示意图

Figure 3. Schematic ofthe ceiling length difference of the cascade test section

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图 4 通过抽气控制叶栅试验AVDR^[18]

Figure 4. AVDR regulation and control by air bleed or suction^[18]

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图 5 美国NASA某超声速压气机叶栅试验^[25]

Figure 5. A supersonic compressor cascade test (NASA)^[25]

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图 6 PW545低压涡轮效率随雷诺数的变化^[26]

Figure 6. PW545 low pressure turbine efficiency variation with Reynolds number^[26]

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图 7 扇形叶栅试验段出口消旋叶片示意图^[47]

Figure 7. 2D unwrapped schematic of the working section of the annular sector heat transfer facility^[47]

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图 8 变进气攻角转接段^[48]

Figure 8. Variable inlet angle switching section for sector cascade^[48]

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