| 压气机转子出口流场的发展及三维紊流特性 |
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| 引用本文： | 马宏伟,蒋浩康.压气机转子出口流场的发展及三维紊流特性[J].航空动力学报,2000,15(2):113-118. |
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| 作者姓名： | 马宏伟 蒋浩康 |
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| 作者单位： | 北京航空航天大学404教研室,北京100083 |
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| 基金项目： | 中国科学院资助项目，科技部科研项目，59776009，，， |
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| 摘 要： | 用单斜热丝和高频压力探针仔细测量了单级压气机转子出口及下游的三维紊流流场, 揭示转子出口流场的变化, 分析不同流量状态下单级压气机转子出口的三维紊流特性。
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| 关 键 词： | 压气机 转子 流场 紊流 测量 |
| 收稿时间： | 1999/6/15 0:00:00 |
| 修稿时间： | 1999-06-15 |
Development of Three-Dimensional Turbulent Flow Field at Exit of an Axial Compressor Rotor Passage |
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| Ma Hongwei and Jiang Haokang.Development of Three-Dimensional Turbulent Flow Field at Exit of an Axial Compressor Rotor Passage[J].Journal of Aerospace Power,2000,15(2):113-118. |
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| Authors: | Ma Hongwei and Jiang Haokang |
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| Affiliation: | 4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083,China |
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| Abstract: | Detailed measurements of three dimensional turbulent flow field at exit of an axial flow single stage compressor and downstream were made in different mass flow conditions.The flow structure was surveyed with both hot wire probe and high frequency pressure probe.The results show that in design condition,substantial blockage,loss and turbulence mainly exist in the tip mid passage,wake and the corner between the suction surface and the hub as the mass flow reduces,the high turbulence areas enlarge with the flow structure changing,and the flow becomes more turbulent.Distributions of three turbulence intensity components are almost similar,and the radial component is found to be the highest,while the axial radial component of Reynolds stresses is the largest.In the downstream flow the decayed tip leakage vortex moves toward the pressure surface and the low radial location and leads to more flow mixing,blockage and turbulence in the tip region.The rotor wake becomes wider while the flow loss increases.Both radial velocity and radial turbulence intensity decay obviously,and the axial tangential component of Reynolds stresses is the largest.Vortex is one of the most important factors which cause the pressure fluctuation and airflow noise. |
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| Keywords: | compressor rotor turbulent flow field measurements |
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