涡轮高载荷动叶片设计及级三维流场数值分析  

Design and 3-D numerical analysis of highly loaded turbine rotor blade

作　　者：周凡贞[1] 王世勇[2] 丁晓娟[2] 冯国泰[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 [2]哈电发电设备国家工程研究中心有限公司,黑龙江哈尔滨150040

出　　处：《推进技术》2004年第1期62-65,共4页Journal of Propulsion Technology

基　　金：国家“九七三”资助项目(G1999022307)。

摘　　要：针对一个涡轮的典型级,减少动叶片的数18只,采用参数化叶型法重新成型三维叶片的五个截面叶型,用Fluent分别对各截面进行粘性S1正问题流场分析计算,然后将5个截面沿径向以各截面的重心积迭形成三维叶栅。对新成型的叶栅和原叶栅组成的涡轮级分别进行三维粘性流动分析,表明新设计的叶栅叶片载荷增加15%,而效率基本保持不变。For a typical turbine stage, with a reduction of 18 rotor blades. Five sections of the blade were reconstructed respectively by adopting the parametric blade design method, and the computations of viscous blade-to-blade flow were also carried out respectively by FLUENT commercial software package. The blade was stacked by the center of gravity in radial direction with five sections. Three-dimensional flow analyses were carried out to compare the flow field characteristic between the new highly loaded turbine rotor blade stage and the conventional one. It is found that the blade load is increased by 15% and the stage efficiency is basically maintained.

关 键 词：涡轮 高载荷涡轮 叶片 数值分析 

分 类 号：V232.4[航空宇航科学与技术—航空宇航推进理论与工程]