Experiment of tip leakage flow characteristics in turbine shroud

YU Lei; CHANG Hai-ping

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Experiment of tip leakage flow characteristics in turbine shroud

更新时间：2026-07-07

- Experiment of tip leakage flow characteristics in turbine shroud
- Vol. 26, Issue 12, (2011)
- 作者机构：
  
  南京航空航天大学能源与动力学院,南京,210016
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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YU Lei, CHANG Hai-ping. Experiment of tip leakage flow characteristics in turbine shroud[J]. 2011, 26(12).
DOI：

YU Lei, CHANG Hai-ping. Experiment of tip leakage flow characteristics in turbine shroud[J]. 2011, 26(12). DOI：

摘要

针对叶冠腔内有冷却气流的转子叶片叶冠

通过改变主流雷诺数、前后孔岀流比、叶尖间隙等参数得到静止状态下叶冠间隙流动的总压损失系数.实验结果表明:增大主流雷诺数与前孔岀流比

叶冠总压损失系数增大;减小叶尖间隙

总压损失系数也增大

小叶尖间隙下

总压损失系数随主流雷诺数与前孔岀流比增长更快

而后孔岀流比对叶冠总压损失系数影响不大.

Abstract

For rotor shrouded blade with cooling air

the total pressure loss coefficient of tip leakage flow in stationary state was investigated in different mainstream Reynolds numbers

outflow ratio of the former and the latter holes

tip clearance at so on.The results show:(1)total pressure loss coefficient increases as mainstream Reynolds number and outflow ratio of the former hole increase;(2)total pressure loss coefficient also increases by reducing tip clearance

which increases faster with the mainstream Reynolds number and outflow ratio especially in small tip clearance;(3)outflow ratio of the latter hole has litter impact on total pressure loss coefficient.

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Related Institution

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