转静干涉下压气机叶片尾缘锯齿设计与性能优化  

Performance Optimization and Serrated Design of Trailing Edge on Compressor Blade under the Effect of Rotor-stator Interaction

作　　者：杨文军 隋东东 王旭鹏 潘五九 王磊 YANG Wenjun;SUI Dongdong;WANG Xupeng;PAN Wujiu;WANG Lei(School of Mechatronics Engineering,Shenyang Aerospace University,Shenyang 110136,Liaoning,China;School of Mechanical Engineering,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu,China)

机构地区：[1]沈阳航空航天大学机电工程学院,辽宁沈阳110136 [2]苏州科技大学机械工程学院,江苏苏州215009

出　　处：《兵工学报》2024年第12期4565-4577,共13页Acta Armamentarii

基　　金：国家自然科学基金项目(52205116、52375113)。

摘　　要：转静干涉效应诱发了压气机叶片尾流的复杂激扰行为,而尾缘锯齿特征为叶片尾流的激扰控制提供了有效手段。在考虑叶排间转静干涉的基础上,通过在静子叶片尾缘引入锯齿特征,以改善其对叶片尾流扰动以及压气机性能的影响,并进一步利用拉丁方试验设计优化了转子叶型,实现转静干涉下压气机叶片的尾流扰动控制与性能优化。研究结果表明:非均布锯齿特征有效改善了静子叶片的尾流形态,增强了叶片主流与尾流区域的混合效应,减小了叶片尾缘的速度亏损;跨声速压气机的效率提高了2.70%,稳定工作范围提高了12.31%;通过优化转子叶片型面,压气机效率提高至91.42%,进一步拓宽了其性能裕度;研究成果不仅对尾流扰动控制具有重要的理论价值,而且对高性能叶盘系统的设计具有重要的工程意义。Complex excitation of compressor blade wakes is induced by the effect of rotor-stator interaction.The trailing-edge serrations are used as an effective means for controlling the excitation of blade wakes.Considering the interaction of rotor-stator blades,the serrations at stator trailing edge are designed to improve the wake turbulence of blades and the performance of compressor.Additionally,the experimental design of Latin square is applied to optimize the profile of rotor blades.This method is used to control the wake disturbance of compressor blades and optimize their performance under the effect of rotor-stator interaction.The results indicate that the wake patterns of stator blades are effectively improved by the distribution of non-homogeneous serrations,the mixing effects between blade mainstream and wake regions are enhanced,and the velocity loss at blade trailing edge is reduced.Consequently,the efficiency of transonic compressor is improved by 2.70%,and the stable operating range is increased by 12.31%.The efficiency of compressor is increased to 91.42% by optimizing the profile of rotor blade,and its performance margin is further expanded.This research not only has an important theoretical significance for the wake control,but also has a great engineering significance in the design of high-performance blade-disk system.

关 键 词：压气机叶片 尾缘锯齿 尾流扰动 工作性能 优化设计 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]