某型低压涡轮导向器叶栅改型实验研究  

EXPERIMENTAL STUDIES ON THE MODIFICATION OF STATOR IN AN LP TURBINE

作　　者：陈绍文[1] 陈浮[1] 宋彦萍[1] 徐文远[1] 王仲奇[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《工程热物理学报》2005年第z1期73-76,共4页Journal of Engineering Thermophysics

摘　　要：实验研究了不同冲角下子午流道具有较大扩张角的某型低压涡轮导向器原型和改型叶栅的气动性能。结果表明,通过改变端壁型线扩张规律及三维叶型积迭线,改型叶片表面静压分布更加合理,叶栅的流动损失显著减小,流场结构得到明显改善,叶栅气动性能的提高表明改型是成功而且有效的。The aerodynamic characteristics between original design and modified design in the LP turbine sectorial cascades with large diffused angel were studied in different incidences. The results of experiment showed the distribution of static pressure become more reasonable in the modified blade face with the modification of endwall profile and 3D stacking line. Flow loss of L.P. guide cascade is decreased, and structure of flow field has a obvious improvement. The aerodynamic performance is improved, which show the modification of L.P. guide cascade is successful.

关 键 词：涡轮 导向叶栅 冲角 实验研究 

分 类 号：TK474.7[动力工程及工程热物理—动力机械及工程]