| 亚音速复合倾斜透平静叶栅的理论与实验研究 |
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| 引用本文： | 蒋洪德,陆永良,周凡贞,王松君.亚音速复合倾斜透平静叶栅的理论与实验研究[J].航空动力学报,1993,8(1):45-48,93. |
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| 作者姓名： | 蒋洪德 陆永良 周凡贞 王松君 |
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| 作者单位： | 北京中国科学院工程热物理研究所，哈尔滨汽轮机厂，哈尔滨汽轮机厂，哈尔滨汽轮机厂 100080 |
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| 摘 要： | 采用三维全势函数多重网格数值方法求解亚音速透平静叶栅流场。以 30 0 MW汽轮机调节级静叶栅的设计为目标 ,采用子午面上外环壁收缩和叶片周向复合倾斜两项措施 ,以求大幅度地减少叶栅二次流损失。实验研究表明新设计叶栅的损失系数比直叶栅降低 42 % ,测出的叶片表面静压分布与理论计算结果十分吻合
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| 关 键 词： | 全势函数 多重网格 亚音速静叶栅 子午面顶部收缩 周向复合倾斜 |
| 收稿时间： | 1/1/1992 12:00:00 AM |
STUDY OF A SUBSONIC COMBINED-LEANING TURBINE GUIDE VANE WITH TIP ENDWALL CONTOURING |
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| Jiang Hongde,Lu Yongliang,Zhou Fanzhen and Wang Songjun.STUDY OF A SUBSONIC COMBINED-LEANING TURBINE GUIDE VANE WITH TIP ENDWALL CONTOURING[J].Journal of Aerospace Power,1993,8(1):45-48,93. |
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| Authors: | Jiang Hongde Lu Yongliang Zhou Fanzhen and Wang Songjun |
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| Institution: | Institute of Engineering Thermophysics,Chinese Academy of Sciences;Harbine Steam Turbine Work;Harbine Steam Turbine Work;Harbine Steam Turbine Work |
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| Abstract: | A three dimensional,multigrid potential flow computation method is developed to analyse subsonic flow in steam turbine nozzle guide vane.In order to reduce the large secondary losses in the first annular nozzle guide vane with very small aspect ratio of 0 26 in a 300MW steam turbine,both tip endwall contouring and combined lean blades are used in the new design.Experimental investigation shows that the mass weighted loss coefficient of the new nozzle guide vane is 42 percent less than traditional radial one.The agreement between the measured and calculated results of the pressure distribution on the blade surface in the annular nozzle guide vane is very good.The present study is a success in developing fully 3D steam turbine nozzle guide vane with tip endwall contouring and combined leaning blade. |
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