| 扩压叶栅端壁角区旋涡对湍流特性的影响 |
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| 引用本文： | 刘火星,陈矛章,蒋浩康.扩压叶栅端壁角区旋涡对湍流特性的影响[J].北京航空航天大学学报,2002,28(2):173-177. |
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| 作者姓名： | 刘火星 陈矛章 蒋浩康 |
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| 作者单位： | 北京航空航天大学,动力系,北京,100083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);1999022305; |
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| 摘 要： | 为了弄清扩压叶栅端壁角区旋涡对湍流特性分布的影响,用三维激光多普勒测速技术测量了平面扩压叶栅中角区流动的湍流特性.对测量结果的分析表明:流向涡的核心区域及旋涡与附面层相互作用区域的湍流动能增加.同时,旋涡和旋涡运动强烈影响着雷诺正应力和切应力的分布规律.
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| 关 键 词： | 叶栅流动 涡旋流动 湍流特性 |
| 文章编号： | 1001-5965(2002)02-0173-05 |
| 收稿时间： | 2000-06-28 |
| 修稿时间： | 2000年6月28日 |
Influence of Streamwise Vortex on Turbulence Characteristics of Endwall Flow in a Compressor Cascade |
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| LIU Huo-xing,CHEN Mao-zhang,JIANG Hao-kang.Influence of Streamwise Vortex on Turbulence Characteristics of Endwall Flow in a Compressor Cascade[J].Journal of Beijing University of Aeronautics and Astronautics,2002,28(2):173-177. |
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| Authors: | LIU Huo-xing CHEN Mao-zhang JIANG Hao-kang |
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| Institution: | Beijing University of Aeronautics and Astronautics, Dept. of Propulsion |
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| Abstract: | To understand the influence of streamwise vortex on turbulence characteristics, the turbulence characteristics of flow in the corner region of a compressor cascade passage were measured by using a three dimensional Laser Doppler Velocimetry system. The result indicated that the turbulence kinetic has a maxima in the core regions of the streamwise vortex and regions that interacted between the vortex and boundary layer, and the vortex or motion of the vortex has strong influence on the distributions of the Reynolds normal stress and shear stress. |
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| Keywords: | cascade flow vortex flow turbulence characteristics |
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