航天推进技术研究院主办
WANG Xiaofeng,MAO Kai,XU Kaifu,et al.Study on effect of stator blade surface state on turbine performance[J].Journal of Rocket Propulsion,2018,44(05):16-20.
静子叶片表面状态对涡轮性能影响的研究
- Title:
- Study on effect of stator blade surface state on turbine performance
- 文章编号:
- 1672-9374(2018)05-0016-05
- Keywords:
- turbine stator; B-spline curve; surface status; rapid prototyping
- 分类号:
- V434.2-34
- 文献标志码:
- A
- 摘要:
- 涡轮静子蜡模成型工艺的改变,导致静子叶片表面状态有很大不同。在分析具体快速成型工艺原理的基础上,利用均匀B样条曲线构造不同表面状态的叶片型线,并进行内部流场数值模拟。结果表明,叶片表面越光滑,涡轮性能越接近理想设计状态。吸力面表面状态对涡轮性能的影响更明显,随吸力面光滑程度的增加涡轮效率和流通面积分别增大12%和3%。
- Abstract:
- The stator blade of a turbine often behaves different surface state due to the change of wax molding process.Based on analyzing the specific process principle of rapid prototyping, the blade profiles with different surface state were structured by means of average B-spline curve, and the numerical simulations of internal flow field were carried out to investigate the effect of stator blade surface state on turbine performance.The results show that, the smoother the stator surface is, the closer the turbine performance reaches to the ideal design condition.The influence of the suction surface condition on the turbine performance is very evident.The turbine efficiency and flow area are respectively increased by 12% and 3% as the smoothness of suction surface is increased.
参考文献/References:
[1] 李本威,李冬,沈伟,等.涡轮叶片粗糙度对其性能衰退的影响研究[J].航空计算技术.2009, 39(5): 26-29.
[2] 姚君,刘红.叶片表面粗糙度对透平叶栅气动性能影响的试验研究[J].燃气轮机技术.2008,21(2):28-31.
[3] 霍福鹏,孟繁娟,钟洪亮,等.提高叶片局部粗糙度对风机效率影响的实验研究[J].工程热物理学报.2000,21(6):697-699.
[4] 孙爽,雷志军,朱俊强,等.粗糙度对超高负荷低压涡轮边界层影响[J].推进技术.2014,35(3):347-355.
[5] 李广慧.选择性激光烧结快速成型制件精度的研究[D].哈尔滨:哈尔滨理工大学.2003.
[6] 任继文,彭蓓.选择性激光烧结技术的研究现状与展望[J].机械设计与制造.2009(10):266-268.
[7] 王晓锋,李昌奂,韩飞,等.动叶顶部间隙结构对涡轮性能影响的数值分析[J].火箭推进.2013,39(2):23-28.
WANG Xiaofeng, LI Changhuan, HAN Fei.Numerical analysis on influence of rotor tip clearancestructure on turbine performance [J].Journal of rocket propulsion, 2013, 39(2): 23-28.
备注/Memo
收稿日期:2017-02-22
作者简介: 王晓锋(1976—),男,博士,高级工程师,研究领域为液体火箭发动机涡轮泵设计