| 串列叶栅尾迹特性的实验研究 |
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| 引用本文： | 周正贵,吴国钏.串列叶栅尾迹特性的实验研究[J].南京航空航天大学学报,1994,26(4):555-559. |
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| 作者姓名： | 周正贵 吴国钏 |
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| 作者单位： | 南京航空航天大学动力工程系 |
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| 摘 要： | 对串列叶栅的尾迹特性进行了实验研究。研究表明：串列叶栅尾迹平均速度和单列一样满足相似律。串列叶栅的尾迹平均速度和紊流脉动速度沿额线方向比单列叶栅变化平缓。对于串列叶栅在叶栅下游相对距离Ｘ／ＣＴ＞０．７时，尾迹纵向紊流度基本不随距离Ｘ／ＣＴ变化。
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| 关 键 词： | 串列叶栅，紊流尾迹，紊流强度，单列叶栅，尾迹特性 |
The Characteristics of Wake behind Tandem Cascades |
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| Zhou Zhenggui, Wu Guochuan.The Characteristics of Wake behind Tandem Cascades[J].Journal of Nanjing University of Aeronautics & Astronautics,1994,26(4):555-559. |
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| Authors: | Zhou Zhenggui Wu Guochuan |
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| Abstract: | The characteristics of wake behind tandem cascades, making a contrast to that of a single-row, are investigated by experiments. The results are concluded as follows. The mean wake velocity profiles behind tandem cascades satisfy the self-similarity, similar to that behind the single-row cascade. Behind the tandem cascades, the variations of mean velocity and turbulence intensity along the tangential direction become more gentle than that behind the single-row cascade. In the down-stream of the tandem cascades, the longtudial turbulence intensity almost does not vary at a relative distance of X/CT>0. 7. |
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| Keywords: | tandem cascade turbulent wake turbulence intensity single-row cascade characteristics of wake |
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