## 留言板

 引用本文: 杨庆海, 黄洪雁, 韩万今. 有叶顶间隙的涡轮弯叶栅拓扑与旋涡结构(Ⅱ)——横截面流场拓扑结构与叶栅旋涡结构[J]. 应用数学和力学, 2002, 23(8): 851-854.
YANG Qing-hai, HUANG Hong-yan, HAN Wan-jin. Topology and Vortex Structures of a Curving Turbine Cascade With Tip Clearance (Ⅱ)-Topological Flow Pattern and Vortex Structure in the Transverse Section of a Blade Cascade[J]. Applied Mathematics and Mechanics, 2002, 23(8): 851-854.
 Citation: YANG Qing-hai, HUANG Hong-yan, HAN Wan-jin. Topology and Vortex Structures of a Curving Turbine Cascade With Tip Clearance (Ⅱ)-Topological Flow Pattern and Vortex Structure in the Transverse Section of a Blade Cascade[J]. Applied Mathematics and Mechanics, 2002, 23(8): 851-854.

## 有叶顶间隙的涡轮弯叶栅拓扑与旋涡结构(Ⅱ)——横截面流场拓扑结构与叶栅旋涡结构

###### 作者简介:杨庆海(1969- ),男,山东临清人,助理研究员,博士.
• 中图分类号: V231.3

## Topology and Vortex Structures of a Curving Turbine Cascade With Tip Clearance (Ⅱ)-Topological Flow Pattern and Vortex Structure in the Transverse Section of a Blade Cascade

• 摘要: 根据具有叶顶间隙的直叶栅和正、反弯叶栅壁面流动的墨迹显示以及横截面内气动参数测量,应用拓扑学原理,分析了叶栅流道横截面内的拓扑结构。与直叶栅比较,叶片正弯消除了上通道涡分离线,并使二次涡由闭式分离转变为开式分离,而叶片反弯仅影响奇点位置、旋涡强度与尺度。
•  [1] 杨庆海,黄洪雁,韩万今. 有叶顶间隙的涡轮弯叶栅拓扑与旋涡结构(Ⅰ)——实验模型、端壁与叶片表面拓扑结构[J]. 应用数学和力学,2002,23(8):843-850. [2] Hunt J C R, Abell C J, Peterla J A, et al. Kinematical studies of the flow around free of surface mounted obstacles: applying topology to flow visualization[J]. Fluid Mech,1978,86:179-200. [3] KANG Shun. Investigation on the three-dimensional flow within a compressor cascade with and without tip clearance[D]. Ph D Thesis. Brussel: Vrije Universiteit Brussel,1993.

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##### 出版历程
• 收稿日期:  2001-05-08
• 修回日期:  2002-03-26
• 刊出日期:  2002-08-15

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