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Research Papers: Flows in Complex Systems

Effects of Rotating Inlet Distortion on Compressor Stability With Stall Precursor-Suppressed Casing Treatment

[+] Author and Article Information
Xu Dong

School of Energy and Power Engineering,
Beihang University,
No. 37 Xueyuan Road, Haidian District,
Beijing 100191, China
e-mail: buaadongxu@buaa.edu.cn

Dakun Sun

School of Energy and Power Engineering,
Beihang University,
Co-Innovation Center for Advanced Aero-Engine,
No. 37 Xueyuan Road, Haidian District,
Beijing 100191, China
e-mail: sundk@buaa.edu.cn

Fanyu Li

Science and Technology on Plasma
Dynamics Laboratory,
Air Force Engineering University,
No. 1 Changledong Jia,
Xi'an 710038, China
e-mail: 00010601@163.com

Donghai Jin

School of Energy and Power Engineering,
Beihang University,
No. 37 Xueyuan Road, Haidian District,
Beijing 100191, China
e-mail: jdh@buaa.edu.cn

Xingmin Gui

School of Energy and Power Engineering,
Beihang University,
No. 37 Xueyuan Road, Haidian District,
Beijing 100191, China
e-mail: guixm@buaa.edu.cn

Xiaofeng Sun

School of Energy and Power Engineering,
Beihang University,
Co-Innovation Center for Advanced Aero-Engine,
No. 37 Xueyuan Road, Haidian District,
Beijing 100191, China
e-mail: sunxf@buaa.edu.cn

1Corresponding author.

Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received November 30, 2014; final manuscript received April 18, 2015; published online June 16, 2015. Assoc. Editor: Edward M. Bennett.

J. Fluids Eng 137(11), 111101 (Nov 01, 2015) (15 pages) Paper No: FE-14-1714; doi: 10.1115/1.4030492 History: Received November 30, 2014; Revised April 18, 2015; Online June 16, 2015

This paper conducts an experimental research of rotating inlet distortion on a low-speed large size test compressor with emphasis on the stability problem of axial fan/compressors, and the stall margin enhancement with a kind of stall precursor-suppressed (SPS) casing treatment. Some results on compressor stall margin and prestall behavior under the restriction of rotating inlet distortion are presented. The experimental results show that whether the inlet distortion is co-rotating or counter-rotating, the SPS casing treatment can still improve the stall margin without leading to additional efficiency loss caused by such configuration. The experiment results also show that the mechanism of the stall margin improvement with such casing treatment is associated with delaying the nonlinear development of the stall precursor waves and weakening the unsteady flow disturbances in a compression system.

Copyright © 2015 by ASME
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References

Figures

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Fig. 1

Configuration of the SPS casing treatment

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Fig. 2

The vortex–pressure wave interaction mechanism of the SPS casing treatment

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Fig. 3

Configuration of TA36

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Fig. 4

Rotating inlet distortion generator

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Fig. 5

Eight total pressure combs

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Fig. 6

Inlet total pressure field structure on 70% working speed under the P200 rotating inlet distortion (for a moment)

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Fig. 7

Inlet total pressure field structure on 70% working speed under the P200 rotating inlet distortion (for two cycle periods)

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Fig. 8

Inlet total pressure field structure on 100% working speed under the P500 rotating inlet distortion (for a moment)

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Fig. 9

Inlet total pressure field structure on 100% working speed under the P500 rotating inlet distortion (for two cycle periods)

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Fig. 10

Inlet total pressure field structure and normalized frequency on 100% working speed in different degrees inlet distortion

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Fig. 11

The pressure rise curve under the 200 r/min distortion speed

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Fig. 12

Efficiency curves with 200 r/min distortion speed under rated speed

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Fig. 13

The pressure rise curve under the 500 r/min distortion speed

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Fig. 14

Efficiency curves with 500 r/min distortion speed under rated speed

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Fig. 15

The pressure rise curve under the 800 r/min, 1000 r/min, 1200 r/min, and 1500 r/min distortion speed

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Fig. 16

Efficiency curves with 800 r/min, 1000 r/min, 1200 r/min, and 1500 r/min distortion speed under different working speed

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Fig. 17

The comparison of SM in different inlet and casing conditions

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Fig. 18

The comparison of SM enhancement within using SPS casing treatment under the different degrees rotating inlet distortion

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Fig. 19

Wall static pressure on the case 0.5 chord length upstream of the rotor measured by eight high-frequency response pressure sensors under the 100% working speed with P1000 distortion

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Fig. 20

Wall static pressure on the case 0.5 chord length upstream of the rotor measured by eight high-frequency response pressure sensors under the 70% working speed without distortion

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Fig. 21

Normalized frequency measured by CH1 after FFT, under the 70% working speed without distortion

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Fig. 22

Wall static pressure on the case 0.5 chord length upstream of the rotor measured by eight high-frequency response pressure sensors under the 70% working speed with P200 distortion

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Fig. 23

Normalized frequency measured by CH1 after FFT, under the 70% working speed with P200 distortion

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Fig. 24

Wall static pressure on the case 0.5 chord length upstream of the rotor measured by eight high-frequency response pressure sensors under the 70% working speed with P1000 distortion

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Fig. 25

Normalized frequency measured by CH1 after FFT, under the 70% working speed with P1000 distortion

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Fig. 26

Wall static pressure on the case 0.5 chord length upstream of the rotor measured by eight high-frequency response pressure sensors under the 70% working speed with P1500 distortion

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Fig. 27

Normalized frequency measured by CH1 after FFT, under the 70% working speed with P1500 distortion

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Fig. 28

Power spectral density (PSD) of the normalized frequency at 100% design working speed during a period of prestall, within P500 inlet distortion

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Fig. 29

PSD of the normalized frequency at 100% design working speed during a period of prestall, without inlet distortion

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Fig. 30

Comparison of PSD with and without casing treatment at 100% design working speed during a period of prestall, within P500 inlet distortion

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Fig. 31

Comparison of PSD with and without casing treatment at 100% design working speed during a period of prestall, within P800 inlet distortion

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Fig. 32

Comparison of PSD with and without casing treatment at 100% design working speed during a period of prestall, within P1000 inlet distortion

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Fig. 33

Comparison of PSD with and without casing treatment at 100% design working speed during a period of prestall, within P1200 inlet distortion

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