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不同进口畸变下低速压气机近失速状态非定常特征
引用本文:童志庭,张靖煊,李美林,聂超群.不同进口畸变下低速压气机近失速状态非定常特征[J].工程热物理学报,2006,27(1):51-53.
作者姓名:童志庭  张靖煊  李美林  聂超群
作者单位:1. 中国科学院工程热物理研究所,北京,100080;中国科学院研究生院,北京,100080
2. 中国科学院工程热物理研究所,北京,100080
摘    要:本文采用动态测量技术和非定常流动的分析方法,对不同进口畸变条件下低速压气机近失速状态时,动叶顶部非定常流动特征进行了实验分析,从时间尺度和空间尺度,探讨了压缩系统对进口畸变效应的非定常响应机制。结果表明: 有畸变工况下,出现大尺度扰动型的失速先兆。

关 键 词:压气机  旋转失速  非定常流动
文章编号:0253-231X(2006)01-0051-03
修稿时间:2005年3月20日

UNSTEADY FLOW BEHAVIOR OF NEAR-STALL STATES IN LOW-SPEED COMPRESSOR UNDER DIFFERENT DISTORTIONS
TONG Zhi-Ting,ZHANG Jing-Xuan,LI Mei-Lin,NIE Chao-Qun.UNSTEADY FLOW BEHAVIOR OF NEAR-STALL STATES IN LOW-SPEED COMPRESSOR UNDER DIFFERENT DISTORTIONS[J].Journal of Engineering Thermophysics,2006,27(1):51-53.
Authors:TONG Zhi-Ting  ZHANG Jing-Xuan  LI Mei-Lin  NIE Chao-Qun
Abstract:The paper investigates the unsteady flow behavior of near-stall states around the tip clearance ranges of rotor in a low-speed axial compressor. Using both the technique of dynamic measurement and analyzing methods of unsteady flow, the authors study the unsteady response of compressor aerodynamics under different distortions from the view points of the time-varying domain to the spatial structure. The results show that the modal perturbations of long length scale have been detected under different distortions.
Keywords:compressor  rotating stall  unsteady flow
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