Time-Frequency Analysis of the Axial Flow Compressor Endwall Flow at Near Stall Conditions

ZHANG Pu; LI Ying-hong; WEI Xun-kai; WU Yun; ZHANG Bai-ling

Chinese

您当前的位置：

首页 >

文章列表页 >

Time-Frequency Analysis of the Axial Flow Compressor Endwall Flow at Near Stall Conditions

更新时间：2026-07-07

- Time-Frequency Analysis of the Axial Flow Compressor Endwall Flow at Near Stall Conditions
- Vol. 20, Issue 2, (2005)
- 作者机构：
  
  空军工程大学工程学院推进系统实验室,陕西,西安,710038
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2005
- 稿件说明：
移动端阅览
ZHANG Pu, LI Ying-hong, WEI Xun-kai, et al. Time-Frequency Analysis of the Axial Flow Compressor Endwall Flow at Near Stall Conditions[J]. 2005, 20(2).
DOI：

ZHANG Pu, LI Ying-hong, WEI Xun-kai, et al. Time-Frequency Analysis of the Axial Flow Compressor Endwall Flow at Near Stall Conditions[J]. 2005, 20(2). DOI：

摘要

为准确辨识某型单轴涡喷发动机压气机近失速点的流动特征

对其端壁静压信号进行了时频分析。时频分析结果表明

近失速点的工况下

与其它各级相比

压气机第一级静子机匣壁面流动变化最为显著;随着发动机工作点沿共同工作线趋近喘振边界

压气机第一级静子机匣壁面静压信号中以550Hz为中心的宽带信号开始出现并逐步增强。所发现的压气机端壁流态特征可用于发动机节流过程中工作点接近失速边界的程度的判定

具有一定的工程应用价值。

Abstract

To identify the flow pattern of a single-spool turbojet axial flow compressor at near stall conditions

the compressor end wall static pressure signals were analyzed using time-frequency analysis technology.The results show that at near stall conditions

the endwall flow of the first compressor stator varies dramatically compared to other stators.As the operating point runs close to the surge line along the operating line

a broad band signal centered on 550 Hz occurs and gradually builds up.The observed end wall flow patterns can be used to assess the stall margins during engine throttling

and thus

it has certain value in engineering application.

关键词

Keywords

references

Views

458

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Time-frequency characteristics of stator passage pressure signal of aeroengine compressor

Investigation of off design performance of a transonic compressor with circumferential grooves

Unsteady numerical simulation on transonic compressor with screwed slots casing treatment

Application of Probability Density Function Analysis in the Monitoring of Engine Aerodynamic Instability Precursor

Large eddy simulation of unsteady flow field in a two-dimensional moving compressor cascade

Related Author

WEI Feng-ting

LI Ying-hong

ZHANG Pu

ZHU Jian-hong

PIAO Ying

ZHOU Jian-xing

QI Xing-ming

LIU Jian-xun

Related Institution

Laboratory of Propulsion System, The Engineering Institute, Airforce Engineering University

School of Aerospace, Tsinghua University

Key Laboratory of Advanced Energy and Power,Institute of Engineering Thermophysics,Chinese Academy of Sciences

University of Chinese Academy of Sciences

Science and Technology on Plasma Dynamics Laboratory, Aeronautics and Astronautics Engineering College, Air Force Engineering University

AI问答

Postal code：100079
Tel：（010）53879206 Email：tmw@bjxintong.com.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09082226号-64 京公网安备11010602201714号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰