压气机静子通道内的流场测量

罗钜; 胡骏; 严伟; 张晨凯; 尹超

压气机静子通道内的流场测量

南京航空航天大学能源与动力学院, 南京 210016

基金项目: 中央高校基本科研业务费专项资金,江苏省普通高校研究生科研创新计划(CXZZ11_0224)

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出版历程
- 收稿日期: 2012-10-22
- 刊出日期: 2013-11-28

Measurement of flow field in compressor stator passages

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 为了研究根部间隙对压气机静子通道内流场的影响,设计了4根不同长度的“L”型五孔探针和1根四孔探针.通过位移机构带动上述探针,在最大流量和近失速两种工况下,对某双级低速轴流压气机的第1级静子通道内5个不同轴向位置截面进行了流场测量.实验结果表明:静子通道内总压损失主要是由叶尖附近角区分离以及根部泄漏流与主流的相互掺混引起的.静子通道内主要存在着上/下通道涡、叶尖角涡和泄漏涡等旋涡结构.
- 压气机 /
- 流场测量 /
- 根部间隙 /
- 泄漏流 /
- 五孔探针 /
- 四孔探针
Abstract: In order to study the effect of stator hub gap on performance and flow field of compressor,four "L" type five-hole probes with different lengths and a four-hole probe were designed.The three-dimensional flow field at five sections in the first-stage stator passage of a two-stage axial compressor was measured with those probes,which were driven by displacement mechanism under the maximum flow and near stall conditions.Results show that mixing of main stream with hub leakage flow and tip corner separation are the main causes of total pressure loss in stator passages.There are four main vortexes in stator passage,which are upper/lower passage vortex,tip corner vortex and leakage vortex.
- compressor /
- flow measurement /
- hub gap /
- leakage flow /
- five-hole probe /
- four-hole probe

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参考文献(15)

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