林显巧,胡骏,王佳宇,李骏.多级低速压气机静子通道内流场测量[J].航空发动机,2019,45(6):66-70 |
多级低速压气机静子通道内流场测量 |
Flow Field Measurement in Multi-stage Low-speed Compressor Stator Passages |
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DOI: |
中文关键词: 低速轴流压气机 静子 流场测量 角区分离 探针 |
英文关键词:low-speed axial compressor stator flow field measurement corner separation probe |
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中文摘要: |
为了揭示多级低速压气机静子通道内部流场结构,深入了解引起静子总压损失的机理,提出了使用2 种探针(2 根4 孔
探针和6 根不同长度的L 型5 孔探针)同时测量静子进口截面及静子通道内截面的方案,并以某4 级低速轴流压气机的第3 级静
子为对象,开展了静子进、出口截面及通道内截面的流场测量。结果表明:在静子通道内的流场结构及涡的发展过程中,叶尖区域的
角区分离不断发展是造成静子通道内总压损失的主要原因;验证了该测量方法在多级低速压气机静子通道内流场测量方面具有工
程应用价值。 |
英文摘要: |
In order to reveal the flow field structure in the the multi-stage low-speed compressor stator passages and understand the
mechanism of the total pressure loss of the stator, two kinds of probes (two four-hole probes and six L-type five-hole probes with
different lengths)were proposed to measure the inlet section of the stator and the internal section of the stator passage at the same time.
The flow field measurement of the stator inlet, outlet section and the inner section of the passage were carried out by taking the 3rd stage
stator of a 4-stage low-speed axial compressor. The results show that the development of the corner separation in the tip region is the
main cause of the total pressure loss in the stator passage during the development of flow field structure and the vortex in the stator
passage. The application value of the measurement method in the flow field measurement is verified in the multi-stage low-speed
compressor stator passage. |
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