| 采用端壁边界层抽吸方法抑制时栅二次流的效果分析 |
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| 引用本文： | 郭绪垚,俞茂铮.采用端壁边界层抽吸方法抑制时栅二次流的效果分析[J].工程热物理学报,1999(6). |
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| 作者姓名： | 郭绪垚 俞茂铮 |
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| 作者单位： | 西安交通大学热力叶轮机械研究所!西安７１００４９ |
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| 摘 要： | １前言叶栅端壁边界层和叶片表面边界层的发展及其产生的各种旋涡和分离流动对二次流损失有着重要的影响［１，２］，采用端壁边界层抽吸可以控制叶栅端壁上边界层的发展，从而降低二次流损失并改善出口气流的均匀性。同时，在汽轮机湿蒸汽静叶栅中有时也需在端壁上开设抽...
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| 关 键 词： | 二次流 边界层抽吸 叶栅 |
STUDY OF THE EFFECTS OF ENDWALL BOUNDARYLATYER SUCTION ON RESTRAINING THESECONDARY FLOW IN THE CASCADE |
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| GUO Xuyao,YU Maozheng.STUDY OF THE EFFECTS OF ENDWALL BOUNDARYLATYER SUCTION ON RESTRAINING THESECONDARY FLOW IN THE CASCADE[J].Journal of Engineering Thermophysics,1999(6). |
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| Authors: | GUO Xuyao YU Maozheng |
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| Abstract: | By using the finite-volume difference method for numerical solving of the steady threedimensional time-averaged Navier-Stokes equations, the effects of endwall boundary layersuction on the secondary flow field, the yaw angle and the total pressure loss coefficient ofa turbine stator cascade airs investigated. The results show that the endwall suction slotlocated near the suction side can more effectively restrain the secondary flow, reduce the lossand improve the uniformity of the outlet flow field than the slots in other locations. |
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| Keywords: | secondary flow boundary layer suction cascade |
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