对转压气机转子间不同转差下非定常流动的PIV测量  

PIV Investigation of the Internal Flow between Two Rotors in a Dual-stage Counter-rotating Compressor under Rotating-speed Differences

作　　者：侯为民[1] 刘波[1] 赵旭民[1] 王庆伟[1] 曹志远[1] 

机构地区：[1]西北工业大学翼型叶栅空气动力学国防科技重点实验室,西安710072

出　　处：《航空工程进展》2011年第2期220-225,共6页Advances in Aeronautical Science and Engineering

基　　金：国家自然科学基金(50976093)

摘　　要：针对转压气机前后转子不同转差下的转子间流场分布有其自身特点,本文采用粒子图像速度仪(Particle Image Velocimetry,PIV)测量前后级转子等转速及不同转差下级间通道内的流场结构,并对测量结果进行了分析。结果表明:不同转差条件下压气机转子间流场分布随转差及相位呈现较为明显的变化,前级转子叶栅尾迹分布随不同转差会对后级转子进口流场产生较大扰动,必然会对压气机的性能产生较大的影响。The flow field between two rotors under the rotating-speed difference in the counter-rotating compressor will affect the compressor performance.In this paper,some rotating-speed differences are measured and tested on a dual-stage axial counter-rotating compressor by using the particle image velocimetry（PIV） technique to describe the rotor-rotor interaction of flow field structure.The results of analysis show that the unsteady flow fields under the different rotating-speed differences and phases are varied evidently and the contribution of the moving flow field generated by the rotors and that of the first stage wake will affect the second rotor inlet flow and result in evident effects on the compressor＇s performance.

关 键 词：航空航天推进系统 对转技术 压气机 PIV技术 转差 流场结构 

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]