| 涡轮叶片尾缘复合通道隔板结构对流动的影响 |
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| 引用本文： | 丁水汀,李果,李莉,王勇.涡轮叶片尾缘复合通道隔板结构对流动的影响[J].北京航空航天大学学报,2009,35(6):779-782. |
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| 作者姓名： | 丁水汀 李果 李莉 王勇 |
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| 作者单位： | 北京航空航天大学航空发动机气动热力重点实验室,北京,100191;北京航空航天大学航空发动机气动热力重点实验室,北京,100191;北京航空航天大学航空发动机气动热力重点实验室,北京,100191;北京航空航天大学航空发动机气动热力重点实验室,北京,100191 |
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| 摘 要： | 涡轮叶片尾缘隔板结构的优化可以强化换热,其机理是破坏附面层的形成,并形成脉动效果.本试验通过流道中打入粒子,在激光片光源的照射下使用高速摄像头拍摄涡轮叶片尾缘带隔板的复合通道内的流动形式.主要试验了2种不同结构的隔板(矩形隔板与120°波形隔板)在射流孔全部打开和单个射流孔打开时的流动形式,以及波形隔板在不同条件下对流动形式的影响.结果表明:矩形隔板和波形隔板都对射流有所影响;波形隔板射流有其特有的震荡效果,在固定几何条件下,主要与进口雷诺数相关.
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| 关 键 词： | 叶片尾缘 片光源 高速摄像 隔板 震荡 |
| 收稿时间： | 2008-05-26 |
Effect of different clapboards structure in turbine blade trailing edge complex passages on flow characteristics |
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| Ding Shuiting,Li Guo,Li Li,Wang Yong.Effect of different clapboards structure in turbine blade trailing edge complex passages on flow characteristics[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(6):779-782. |
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| Authors: | Ding Shuiting Li Guo Li Li Wang Yong |
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| Institution: | National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | The experiment mainly conducted the effect of two different structure diaphragm plates in the complex passages on heat transfer of turbine blade trailing edge. A laser bean irradiated the passages and a low-motion vidicon screened the particle's flow in second pass passage. Comparison the flow was made among two kinds of diaphragm plates; rectangular diaphragm plates(RDP) , 120° waved diaphragm plates(WDP) in the complex passages of turbine blade trailing edge. It was found that both these two diaphragm plates influence the flow, and the WDP has a special oscillation pulsating flow effect in the second passage. For WDP, the Re has fierceness influence.The oscillation effects enhance along with the Re change. |
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| Keywords: | turbine trailing edge patch lamp-house low-motion vidicon diaphragm plates oscillation effect |
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