| 尾迹与涡轮叶栅边界层的相互作用 |
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| 引用本文： | 张伟昊,刘火星,李维,邹正平.尾迹与涡轮叶栅边界层的相互作用[J].航空动力学报,2009,24(4):843-850. |
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| 作者姓名： | 张伟昊 刘火星 李维 邹正平 |
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| 作者单位： | 1.北京航空航天大学 能源与动力工程学院 航空发动机气动热力重点实验室, 北京 100191 |
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| 基金项目： | 国家自然科学基金(50776003) |
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| 摘 要： | 通过实验和数值模拟的手段研究了尾迹与边界层的相互作用,其中上游叶排尾迹的模拟是通过在涡轮叶栅前设置周期性运动的圆柱实现的.研究表明,上游尾迹对涡轮叶栅边界层的发展有显著影响,在其作用下,吸力面边界层提前转捩,分离得到明显的抑制,利用尾迹与边界层相互作用的非定常效应可以明显提高低压涡轮叶栅气动负荷.
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| 关 键 词： | 尾迹 边界层 低压涡轮 高负荷 |
| 收稿时间： | 4/28/2008 6:31:00 PM |
| 修稿时间： | 2008/7/10 0:00:00 |
Wake-boundary layer interaction on low pressure turbine cascade blades |
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| ZHANG Wei-hao,LIU Huo-xing,LI Wei and ZOU Zheng-ping.Wake-boundary layer interaction on low pressure turbine cascade blades[J].Journal of Aerospace Power,2009,24(4):843-850. |
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| Authors: | ZHANG Wei-hao LIU Huo-xing LI Wei and ZOU Zheng-ping |
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| Institution: | 1.National Key Laboratory on Aero-Engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China2.Aeroengine Numerical Simulation Research Center, Beijing University of Aeronautics and Astronautics, Beijing 100191, China3.Chinese Aviation Powerplant Research Institute, Zhuzhou 412002, China |
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| Abstract: | The wake-boundary layer interaction had been investigated numerically and experimentally,and a periodicity moving bar wake had been used to imitate the upstream wake.The study shows that the wake has a significant influence on the boundary layer of cascade: the transition on suction surface has taken place in advance;the separation has been remarkably suppressed;the load of low-pressure turbine cascade has been increased obviously. |
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| Keywords: | wake boundary layer low-pressure turbine high lift |
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