具有附面层抽吸的大折转角扩压静叶优化研究  

Optimization of High Turning Angle Stator Cascades with Boundary Layer Suction

作　　者：张文明[1] 李俊海[1] 

机构地区：[1]哈尔滨汽轮机厂有限责任公司

出　　处：《电站系统工程》2010年第2期18-20,共3页Power System Engineering

摘　　要：在某大折转角扩压静叶基础上,充分考虑到附面层抽吸对高负荷静叶流场的影响,对静叶方案进行了优化设计。结合NACA65系列叶型与低速CDA叶型各自的特点,通过对静叶前缘加速段及尾缘扩压段的细致修型和调整,采用吸力面和下端壁组合抽吸的控制方法,最终将静叶在设计点的性能大幅度提高,大大超过了原设计指标。On the basis of a certain high turning angle diffusion stator cascade, an optimization design procedure was carried out with consideration of the impact of boundary layer suction. Combined with the features of NACA65 and low speed CDA profiles, the acceleration section near leading edge and the diffusion section near trailing edge of the stator cascade are modified and shaved which leads to a better flow field structure and higher performance.

关 键 词：高负荷 附面层抽吸 大折转角 优化设计 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]