[1]王世安.叶型几何变形对涡轮载荷分布的影响[J].哈尔滨工程大学学报,2012,(07):845-850.[doi:10.3969/j.issn.1006-7043.201106046]
 WANG Shian.Influence of a turbine airfoil’s geometry deformationon loading distribution of a turbine[J].hebgcdxxb,2012,(07):845-850.[doi:10.3969/j.issn.1006-7043.201106046]
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叶型几何变形对涡轮载荷分布的影响(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2012年07期
页码:
845-850
栏目:
出版日期:
2012-07-25

文章信息/Info

Title:
Influence of a turbine airfoil’s geometry deformationon loading distribution of a turbine
文章编号:
1006-7043(2012)07-0845-06
作者:
王世安
海装沈阳局,辽宁 沈阳 110031
Author(s):
WANG Shi’an
Shenyang Bureau,Shenyang 110031, China
关键词:
涡轮叶型几何变形载荷分布静叶后加载气动性能
分类号:
TK14
DOI:
10.3969/j.issn.1006-7043.201106046
文献标志码:
A
摘要:
为了寻找将中部加载涡轮叶片改型为后加载涡轮叶片的设计规律,用三维流体软件NUMECA对某四级动力涡轮的第一静叶进行了后加载改型设计研究.通过调整Bezier曲线控制点改变叶型的中弧线和内背弧.数值模拟结果表明:保持叶型中弧线轴向长度不变而缩小中弧线的周向长度,同时通过增加叶型厚度来控制喉部面积,可以得到性能先进且保持与原始涡轮级动叶气动匹配的后加载静叶叶型.三维流场研究表明:后加载叶型改善了叶型损失,同时减小了二次流损失,改型的后加载静叶使得涡轮级效率提高了0.62%.

参考文献/References:

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[2]宋彦萍,卢文才. 新型汽轮机后加载叶型的研究[J]. 哈尔滨工业大学学报, 1999, 31(2): 55-57. SONG Yanping, LU Wencai. A new profile of blade for steam turbine[J]. Joural of Harbin Institute of Technology, 1999, 31(2): 55-57.
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[5]周迅, 韩万今, 王仲奇. 后加载叶型叶栅的拓扑与漩涡结构[J]. 热力透平, 2005, 34(1): 2-6. ZHOU Xun, HAN Wanjin, WANG Zhongqi. Topology vortex structure of turbine cascades with aft-loaded profile[J]. Thermal Turbne, 2005, 34(1): 2-6.[6]WEISS A P, F0TTNER L. The influence of load distribution on secondary flow in straight turbine cascades[J]. ASME Journal of Turbomachinery, 1995, 117(1): 101-109.[7]CORRIVEAU D, SJOLANDER S A. Influence of loading distribution on the performance of transonic hp turbine blades[J]. ASME Journal of Turbomachinery, 2004, 126:289-296.[8]HOWELL R J, RAMESH O N, HODESON H P, et al. High lift and aft-loaded profiles for low-pressure turbines[J]. ASME Journal of Turbomachinery, 2001, 123(2): 181-188.

更新日期/Last Update: 2012-07-12