Numerical investigation on the effect of bowed blade to aerodynamic performance of low pressure turbine under stage condition

CHEN Lei; CHEN Jiang

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Numerical investigation on the effect of bowed blade to aerodynamic performance of low pressure turbine under stage condition

更新时间：2026-07-07

- Numerical investigation on the effect of bowed blade to aerodynamic performance of low pressure turbine under stage condition
- Vol. 26, Issue 12, (2011)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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CHEN Lei, CHEN Jiang. Numerical investigation on the effect of bowed blade to aerodynamic performance of low pressure turbine under stage condition[J]. 2011, 26(12).
DOI：

CHEN Lei, CHEN Jiang. Numerical investigation on the effect of bowed blade to aerodynamic performance of low pressure turbine under stage condition[J]. 2011, 26(12). DOI：

摘要

针对某两级低压涡轮的弯扭叶片进行气动性能影响的数值研究

通过对比分析不同弯角和不同类型弯叶片的流场

认为级环境下弯叶片需根据具体载荷分布条件匹配设计.对于研究两级涡轮

第一级静叶反弯、第二级静叶正弯具有相对最优的气动绝热效率

J型弯相比对称弯改善负荷分配

降低二次流损失和激波损失

且小弯角叶片表面压力分布更均匀

流道中部熵增更小

性能高于大弯角叶片.

Abstract

The numerical investigation on the effect of bowed blade to the aerodynamic performance of a two-stage low pressure turbine was presented.By analyzing the flow field of the bowed blade of different bowed-angle and bowed-type

the result is:under the stage circumstances

bowed blade design should match the real load condition;for target turbine

the first stage stator with positive bowed type and the second stage stator with negative bowed type have the best aerodynamic performance;compared to the symmetry bowed blade

J bowed type improves load distribution of the stage and reduces the secondary flow loss and shock wave loss;further more

the blade with small bowed-angle which has better pressure distribution and less entropy production of the mid-flow passage is superior to the big one.

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Related Author

CHEN Lei

CHEN Jiang

ZHAO Shi-lei

ZHANG Hui

LI Chao

YAN Pei-gang

HAN Wan-jin

WANG Qing-chao

Related Institution

School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics

Shenyang Engine Design and Research Institute, Aviation Industry Corporation of China

School of Energy Science and Engineering, Harbin Institute of Technology

Shenyang Engine Research Institute，Aero Engine Corporation of China

Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment， Hunan University of Science and Technology

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