| 压气机非定常叶顶间隙流的数值模拟研究 |
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| 引用本文： | 邓向阳,张宏武,朱俊强,陈静宜,黄伟光.压气机非定常叶顶间隙流的数值模拟研究[J].工程热物理学报,2006,27(2):229-231. |
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| 作者姓名： | 邓向阳 张宏武 朱俊强 陈静宜 黄伟光 |
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| 作者单位： | 1. 中国科学院工程热物理研究所,北京,100080;中国科学院研究生院,北京,100080
2. 中国科学院工程热物理研究所,北京,100080 |
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| 摘 要： | 利用数值方法研究了某低速轴流孤立压气机转子中非定常叶顶间隙流的流动特征和频率特性。结果显示转子顶部区域的压力脉动主要来源于叶顶泄漏涡的非定常波动。波动的具体形式表现为泄漏涡瞬态空间位置、尺度和形态的周期性变化,波动频率为1266 Hz。
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| 关 键 词： | 顶部间隙流 非定常流动 频率 压气机 |
| 文章编号： | 0253-231X(2006)02-0229-03 |
| 修稿时间： | 2005年12月1日 |
INVESTIGATION ON UNSTEADY TIP CLEARANCE FLOW IN A COMPRESSOR BY NUMERICAL SIMULATIONS |
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| DENG Xiang-Yang,ZHANG Hong-Wu,ZHU Jun-Qiang,CHEN Jing-Yi,HUANG Wei-Guang.INVESTIGATION ON UNSTEADY TIP CLEARANCE FLOW IN A COMPRESSOR BY NUMERICAL SIMULATIONS[J].Journal of Engineering Thermophysics,2006,27(2):229-231. |
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| Authors: | DENG Xiang-Yang ZHANG Hong-Wu ZHU Jun-Qiang CHEN Jing-Yi HUANG Wei-Guang |
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| Abstract: | Numerical methods were utilized to investigate the time-dependent flow patterns and the frequency characteristics of unsteady tip clearance flow in an axial-flow low-speed isolated compressor rotor. The result shows that unsteady tip leakage vortex produces strong pressure fluctuations in the rotor tip region, and experiences periodic changes in its spatial locations, sizes and shapes with a frequency of 1266 Hz. |
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| Keywords: | tip clearance flow unsteady flow frequency compressor |
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