Experimental Investigation of Non-Axisymmetric Endwall Profiling Technique in Cascades

您当前的位置：

首页 >

文章列表页 >

Experimental Investigation of Non-Axisymmetric Endwall Profiling Technique in Cascades

更新时间：2025-07-09

- Experimental Investigation of Non-Axisymmetric Endwall Profiling Technique in Cascades
- Vol. 42, Issue 9, Pages: 1086-1090+1101(2008)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK263
- Online First：10 September 2008，
  
  Published：2008
- 稿件说明：
移动端阅览
Experimental Investigation of Non-Axisymmetric Endwall Profiling Technique in Cascades[J]. 2008, 42(9): 1086-1090+1101.
DOI：

Experimental Investigation of Non-Axisymmetric Endwall Profiling Technique in Cascades[J]. 2008, 42(9): 1086-1090+1101. DOI：

摘要

通过风洞实验对三角函数非轴对称端壁成型法和压差非轴对称端壁成型法的效果进行了实验研究与考核.结果表明:与轴对称环形端壁相比

这2种非轴对称端壁使得总压损失系数都有不同程度的减小

在叶栅出口下游段距尾缘2 mm截面上

2套造型端壁流道的总压损失系数分别降低了7.78%和10.20%; 在叶栅出口下游段距尾缘4 mm截面处

2套端壁造型流道的总压损失系数分别降低了9.70%和14.22%.实验还验证了2种端壁成型方法的有效性

采用这2种成型方法设计的叶栅流道能够降低叶栅的二次流流动损失

提高级效率.

Abstract

Aerodynamic performance of two kinds of annular turbine cascade with non-axisymmetric endwall

which are designed with trigonometric function profiling method and pressure difference profiling method

are experimentally investigated with an annular cascade wind tunnel test rig. The results show that the total pressure loss in both cascades with non-axisymmetric endwall are lowered compared with that in axisymmetric annular cascade

which decreases by 7.78% and 10.20% respectively for these two cascades on the 2 mm measuring plane downstream of the cascade trailing edge. And on the 4 mm measuring plane downstream of the cascade trailing edge

the total pressure loss decreases by 9.70% and 14.22% respectively. These two profiling methods for non-axisymmetric endwall are validated by the experiments to provide a useful technique for reducing the secondary flow loss and to improve the efficiency of turbine cascade.

关键词

Keywords

references

郑金,李国君,李军,等.一种新非轴对称端壁成型方法的数值研究[J].航空动力学报,2007,22(9):1487-1491.

ZHENG Jin, LI Guojun, Li Jun, et al. Numerical research on a new non-axisymmetric endwall profiling method [J].Journal of Aerospace Power, 2007,22(9):1487-1491.

马晓永.叶栅非轴对称端壁成型技术及其流动特性的数值研究 [D].西安:西安交通大学能源与动力工程学院,2005.

任光辉.非轴对称端壁成型技术在透平叶栅中应用的数值研究 [D].西安:西安交通大学能源与动力工程学院,2006.

郑金.叶栅非轴对称端壁成型技术的数值模拟及实验研究 [D].西安:西安交通大学能源与动力工程学院,2007.

郑金,李国君,任光辉,等.考虑压差影响的非轴对称端壁成型方法及环形叶栅中的应用 [C]∥2006年中国工程热物理年会学术会议.重庆:中国工程热物理学会,2006.

王玉璋.极小展弦比后加载叶栅气动特性的数值模拟与实验研究 [D].西安:西安交通大学能源与动力工程学院,2000.

李卫华.后加载叶栅气动特性的环形叶栅实验研究与数值模拟 [D].西安:西安交通大学能源与动力工程学院,2004.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Investigations on the Cooling Performance and Pressure Loss Characteristics of Turbine Vane with the Leading Edge Double-Wall Structure

Optimization of Full-Endwall Non-Axisymmetric Contouring Design for Turbine Cascades Aimed at Enhancing Film Cooling Effectiveness

Numerical Study on Effects of Clearance-Damping Structure on the Sealing Effectiveness and Aerodynamic Performance of Rim Seal

Design and Optimization of Temperature Control System for Special Environment in Site Museums

Effect of Pressure Side Winglet on Film Cooling and Heat Transfer Performance of Blade Squealer Tip

Related Author

LI Jun

LI Zhigang

ZHANG Kaiyuan

ZHANG Chaocai

LI Shihan

TAO Zhi

WANG Jie

LI Bolin

Related Institution

Institute of Turbomachinery，Xi'an Jiaotong University

School of Energy and Power Engineering, Xi’an Jiaotong University

TaiHang Laboratory

Xi'an TPRI Energy Conservation Technology Co., Ltd., Xi'an Thermal Power Research Institute Co., Ltd.

Institute of Turbomachinery, Xi'an Jiaotong University

⁰