| 在高负荷涡轮叶栅中应用弯叶片控制流动分离的实验研究 |
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| 引用本文： | 谭春青,张华良,董学智,赵洪雷,山本孝正.在高负荷涡轮叶栅中应用弯叶片控制流动分离的实验研究[J].工程热物理学报,2009,30(9). |
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| 作者姓名： | 谭春青 张华良 董学智 赵洪雷 山本孝正 |
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| 作者单位： | 1. 中科院工程热物理研究所,北京,100190
2. 日本宇宙航空研究开发机构,东京,182-8522 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 本文选择叶型折转角为113°和160°的两种高负荷涡轮平面叶栅,分别开展了直叶栅(STR)和正/反弯曲叶栅的流场测量和流动显示研究,讨论了叶片弯曲对壁面流谱和流动损失的影响.实验结果表明:当叶型折转角为113°时,适当的正弯叶片(DHP)可以减少叶栅流动损失;当叶型折转角为160°时,适当的反弯叶片(DHN)能提高叶栅气动性能.
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| 关 键 词： | 高负荷 折转角 流动分离 弯叶片 |
A NUMERICAL INVESTIGATION OF APPLICATION OF BOWED BLADE TO CONTROL FLOW SEPARATION ON HIGHLY LOADED TURBINE |
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| TAN Chun-Qing,ZHANG Hua-Liang,DONG Xue-Zhi,ZHAO Hong-Lei,Yamamoto Atsumasa.A NUMERICAL INVESTIGATION OF APPLICATION OF BOWED BLADE TO CONTROL FLOW SEPARATION ON HIGHLY LOADED TURBINE[J].Journal of Engineering Thermophysics,2009,30(9). |
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| Authors: | TAN Chun-Qing ZHANG Hua-Liang DONG Xue-Zhi ZHAO Hong-Lei Yamamoto Atsumasa |
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| Abstract: | A experimental investigation was performed for two diirerent turbine cascades with high-turning angles of 113° and 160°.The effect of bowed blade on flow pattern as well as flow loss was discussed through flow field measurement and flow visualization.The result shows that a appropriate positive bowed blade can reduce the flow loss for the cascade with a turning angle of 113°.And that a proper negative bowed blade can improve the aerodynamic performance for the cascade with a turning angle of 160°. |
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| Keywords: | highly load turning angle flow separation bowed blade |
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