Experimental study on heat transfer in rotor-stator cavity with high-positioned pre-swirl inflow

WANG Suo-fang; ZHU Qiang-hua; LUAN Hai-feng; ZHANG Yu

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Experimental study on heat transfer in rotor-stator cavity with high-positioned pre-swirl inflow

更新时间：2026-07-07

- Experimental study on heat transfer in rotor-stator cavity with high-positioned pre-swirl inflow
- Vol. 22, Issue 8, (2007)
- 作者机构：
  
  南京航空航天大学高新技术研究院,南京,210016
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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WANG Suo-fang, ZHU Qiang-hua, LUAN Hai-feng, et al. Experimental study on heat transfer in rotor-stator cavity with high-positioned pre-swirl inflow[J]. 2007, 22(8).
DOI：

WANG Suo-fang, ZHU Qiang-hua, LUAN Hai-feng, et al. Experimental study on heat transfer in rotor-stator cavity with high-positioned pre-swirl inflow[J]. 2007, 22(8). DOI：

摘要

将某型发动机的涡轮盘腔结构简化成高位预旋进气的转静盘腔模型

结合热色液晶先进测温显示技术

通过实验的方法研究了转静盘间距、进气流量、旋转雷诺数以及旋流比等参数的变化对冷气降温效果和转盘换热效果的影响.实验结果表明:高位预旋进气对转盘外缘的冷却效果较好

转盘上的温度分布呈现为同心圆形状;随着旋转雷诺数和转静盘间距的增大或者进气流量的减小

冷气的总温降减小

气流对转盘的换热效果变差.

Abstract

A turbine disc-cavity cooling configuration of an aero-engine was simplified to a rotor-stator cavity model with high-positioned pre-swirl nozzle.The influences of rotor-stator gap

cooling air flux

rotational Reynolds number and swirl ratio on the drop of cooling air temperature and heat transfer on the rotor were experimentally investigated by using advanced temperature measurement technology of the thermochromic liquid crystal.The experimental results indicate that

the high-positioned pre-swirling inflow yields outstanding cooling effect on the rotor fringe

and the temperature of the rotor is distributed in the shape of concentric circle;the drop of cooling air temperature diminishes with the increase of rotational Reynolds number and rotor-stator gap

or with the decrease of cooling air flux

meanwhile

the cooling effect on the rotor becomes worse.

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Related Author

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Related Institution

National Key Laboratory on Aero-Engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics,School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

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The Institute of Micro-Engine, Nanjing University of Aeronautics and Astronautics

School of Astronautics, Beijing University of Aeronautics and Astronautics

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