| 一种减小涡轮叶尖泄漏流的方法 |
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| 引用本文： | 曹传军,黄国平,夏晨.一种减小涡轮叶尖泄漏流的方法[J].航空动力学报,2011,26(1):99-107. |
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| 作者姓名： | 曹传军 黄国平 夏晨 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,南京,210016 |
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| 摘 要： | 提出了一种叶尖逆向涡流发生器减小叶尖泄漏流的方法,利用压力面和叶顶面的压力差,将气流从压力面引入,从叶顶面逆着叶尖泄漏流方向高速射出减小叶尖泄漏流.对某典型毫米尺度涡轮叶栅进行了有/无逆向涡流发生器流场的数值对比分析,分析了不同进口条件下逆向涡流发生器对叶尖泄漏流和周向载荷的影响.结果发现:在典型进口条件下,逆向涡流发...
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| 关 键 词： | 泄漏流 叶尖间隙 涡轮 逆向涡流发生器 周向载荷 涡轮效率 |
| 收稿时间： | 2009/12/1 0:00:00 |
| 修稿时间： | 2010/5/30 0:00:00 |
Method for reducing tip clearance leakage of turbine |
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| CAO Chuan-jun,HUANG Guo-ping and XIA Chen.Method for reducing tip clearance leakage of turbine[J].Journal of Aerospace Power,2011,26(1):99-107. |
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| Authors: | CAO Chuan-jun HUANG Guo-ping and XIA Chen |
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| Institution: | CAO Chuan-jun,HUANG Guo-ping,XIA Chen(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | A kind of method for reducing tip clearance leakage of turbine was presented using backward vortex generators(BVGs) in this paper.In order to reduce tip leakage flow,the gas is guided to flow into BVGs from pressure side of blade and flow out of blade tip with high speed in the inverse-direction of leakage flow,based on the pressure difference between pressure surface and blade tip.Numerical simulations of typical turbine cascade in millimeter scale with/without BVGs were performed and the influences of BVG... |
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| Keywords: | leakage flow tip clearance turbine backward vortex generator circumferential load turbine efficiency |
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