| 有间隙涡轮叶栅壁面流谱实验与数值模拟研究 |
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| 引用本文： | 杨庆海,黄洪雁,韩万今,王仲奇.有间隙涡轮叶栅壁面流谱实验与数值模拟研究[J].中国航空学报,2001,14(4). |
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| 作者姓名： | 杨庆海 黄洪雁 韩万今 王仲奇 |
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| 作者单位： | Academy of Energy Science and Engineering，Harbin Institute of Technology，458\+#，Harbin\ 150001，China |
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| 摘 要： | 对具有 3 .6 %相对叶顶间隙的涡轮叶栅进行了壁面流动显示和三维流场数值模拟 ,分析了大叶顶间隙涡轮叶栅的壁面流动特点 ,从数值模拟上特别对尾缘附近的壁面流动结构进行了详细讨论。实验与计算结果表明叶栅尾缘附近的流动是非常复杂的 ,同时由于叶顶间隙的存在 ,上下尾缘附近的壁面流谱明显不同
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| 关 键 词： | 涡轮叶栅 顶部间隙 壁面流谱 尾缘流动 |
Experimental and Numerical Study of Wall Flow Pattern of Turbine Cascade with Tip Clearance |
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| YANG Qing-hai,HUANG Hong-yan,HAN Wan-jin,WANG Zhong-qi.Experimental and Numerical Study of Wall Flow Pattern of Turbine Cascade with Tip Clearance[J].Chinese Journal of Aeronautics,2001,14(4). |
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| Authors: | YANG Qing-hai HUANG Hong-yan HAN Wan-jin WANG Zhong-qi |
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| Abstract: | By means of flow visualization on the wall surface and three dimensional flow field numerical simulation for the turbine cascade with 3.6% relative tip clearance, characteristics of the wall flow of the turbine cascade with large tip clearance is analyzed. The flow pattern on the wall surface near the trailing edge is especially discussed in detail by numerical simulation. Results of the experimental and numerical simulation show that the flow near the cascade trailing edge is very complex, and the wall flow patterns near the upper and down trailing edges are clearly different due to the influence of blade tip clearance. |
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| Keywords: | turbine cascade tip clearance flow pattern on wall surface trailing edge flow |
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