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一种减小涡轮叶尖泄漏流的方法

曹传军 黄国平 夏晨

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.
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.
CAO Chuan-jun, HUANG Guo-ping, XIA Chen. Method for reducing tip clearance leakage of turbine[J]. Journal of Aerospace Power, 2011, 26(1): 99-107.
Citation: CAO Chuan-jun, HUANG Guo-ping, XIA Chen. Method for reducing tip clearance leakage of turbine[J]. Journal of Aerospace Power, 2011, 26(1): 99-107.

一种减小涡轮叶尖泄漏流的方法

基金项目: 国家自然科学基金(50576034)

Method for reducing tip clearance leakage of turbine

  • 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,逆向涡流发生器使得叶尖间隙泄漏流量降低了3.3%,周向载荷升高了6.2%;进口马赫数越小,涡流器对泄漏流量的减小效果越好;而进口马赫数越大,涡流器对叶片周向载荷的提高越明显.进口马赫数增大,该方法对涡轮效率的提高越大.

     

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出版历程
  • 收稿日期:  2009-12-01
  • 修回日期:  2010-05-30
  • 刊出日期:  2011-01-28

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