| 基于表面热膜的超高负荷低压涡轮叶栅附面层特性 |
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| 引用本文： | 李伟,朱俊强,李钢,徐燕骥.基于表面热膜的超高负荷低压涡轮叶栅附面层特性[J].航空动力学报,2011,26(1):115-121. |
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| 作者姓名： | 李伟 朱俊强 李钢 徐燕骥 |
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| 作者单位： | 1. 中国科学院,工程热物理研究所,北京,100190;中国科学院,研究生院,北京100190
2. 中国科学院,工程热物理研究所,北京,100190 |
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| 摘 要： | 利用表面热膜测量了定常来流条件下某超高负荷后加载叶型吸力面附面层的分离流动,并与壁面静压实验结果进行了对比.结果表明,热膜用于超高负荷低压涡轮叶型附面层流动测量可靠性较高;热膜测得的准壁面剪切应力及相关统计参数能准确地判断附面层分离、再附着和转捩位置;在低雷诺数条件下,分离泡尺寸和转捩区长度随来流雷诺数的减小而增加.
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| 关 键 词： | 超高负荷 低压涡轮 分离泡 转捩 表面热膜 |
| 收稿时间： | 2009/11/27 0:00:00 |
| 修稿时间： | 2/4/2010 12:00:00 AM |
Experimental research on boundary layer behaviors of ultra-high-lift low-pressure turbine profile based on surface-mounted hot-film |
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| LI Wei,ZHU Jun-qiang,LI Gang and XU Yan-ji.Experimental research on boundary layer behaviors of ultra-high-lift low-pressure turbine profile based on surface-mounted hot-film[J].Journal of Aerospace Power,2011,26(1):115-121. |
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| Authors: | LI Wei ZHU Jun-qiang LI Gang and XU Yan-ji |
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| Institution: | LI Wei1,2,ZHU Jun-qiang1,LI Gang1,XU Yan-ji1(1.Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China,2.Graduate University of Chinese Academy of Sciences,China) |
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| Abstract: | A hot-film experimental investigation on steady boundary layer separation behaviors of the suction surface of an ultra-high-lift low-pressure turbine profile was described,which was compared with loading distribution.The experimental results indicate that the surface-mounted hot-film is a reliable indicator of the position of separation bubble and transition for the ultra-high-lift low-pressure turbine blade.In the event of lower Reynolds numbers,the size of separation bubble and transitional regime increas... |
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| Keywords: | ultra-high-lift low-pressure turbine separation bubble transition surface-mounted hot-film |
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