Stabilizing analysis of trapezoidal circumferential grooves on an axial rotor

Jing Liang Deng; Wu Li Chu; Hao Guang Zhang

doi:10.13224/j.cnki.jasp.2015.07.025

Stabilizing analysis of trapezoidal circumferential grooves on an axial rotor

Jing Liang Deng, Wu Li Chu, Hao Guang Zhang

School of Power and Energy

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In order to investigate the stabilizing effect of circumferential grooves in different meridional shapes, two trapezoidal grooves structures and an equal-width grooves structure were designed for the transonic rotor-Rotor 67. The numerical simulations showed that the composite stability margin of circumferential grooves in design speed was increased from 5.9% to more than 20%, and the normal trapezoidal grooves had best effect in the mall flow margin. The blade load distribution was improved, and the average work of the blade was increased too. Comparison of these various grooves shows that the upstream three grooves dominate the biggest contribution, and the normal trapezoidal one's relative contribution to stabilizing effect is the best.

Original language	English
Pages (from-to)	1721-1730
Number of pages	10
Journal	Hangkong Dongli Xuebao/Journal of Aerospace Power
Volume	30
Issue number	7
DOIs	https://doi.org/10.13224/j.cnki.jasp.2015.07.025
State	Published - 1 Jul 2015

Keywords

Axial rotor
Casing treatment
Numerical simulation
Stabilizing
Trapezoidal circumferential grooves

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10.13224/j.cnki.jasp.2015.07.025

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title = "Stabilizing analysis of trapezoidal circumferential grooves on an axial rotor",

abstract = "In order to investigate the stabilizing effect of circumferential grooves in different meridional shapes, two trapezoidal grooves structures and an equal-width grooves structure were designed for the transonic rotor-Rotor 67. The numerical simulations showed that the composite stability margin of circumferential grooves in design speed was increased from 5.9% to more than 20%, and the normal trapezoidal grooves had best effect in the mall flow margin. The blade load distribution was improved, and the average work of the blade was increased too. Comparison of these various grooves shows that the upstream three grooves dominate the biggest contribution, and the normal trapezoidal one's relative contribution to stabilizing effect is the best.",

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author = "Deng, {Jing Liang} and Chu, {Wu Li} and Zhang, {Hao Guang}",

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T1 - Stabilizing analysis of trapezoidal circumferential grooves on an axial rotor

AU - Deng, Jing Liang

AU - Chu, Wu Li

AU - Zhang, Hao Guang

PY - 2015/7/1

Y1 - 2015/7/1

N2 - In order to investigate the stabilizing effect of circumferential grooves in different meridional shapes, two trapezoidal grooves structures and an equal-width grooves structure were designed for the transonic rotor-Rotor 67. The numerical simulations showed that the composite stability margin of circumferential grooves in design speed was increased from 5.9% to more than 20%, and the normal trapezoidal grooves had best effect in the mall flow margin. The blade load distribution was improved, and the average work of the blade was increased too. Comparison of these various grooves shows that the upstream three grooves dominate the biggest contribution, and the normal trapezoidal one's relative contribution to stabilizing effect is the best.

AB - In order to investigate the stabilizing effect of circumferential grooves in different meridional shapes, two trapezoidal grooves structures and an equal-width grooves structure were designed for the transonic rotor-Rotor 67. The numerical simulations showed that the composite stability margin of circumferential grooves in design speed was increased from 5.9% to more than 20%, and the normal trapezoidal grooves had best effect in the mall flow margin. The blade load distribution was improved, and the average work of the blade was increased too. Comparison of these various grooves shows that the upstream three grooves dominate the biggest contribution, and the normal trapezoidal one's relative contribution to stabilizing effect is the best.

KW - Axial rotor

KW - Casing treatment

KW - Numerical simulation

KW - Stabilizing

KW - Trapezoidal circumferential grooves

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DO - 10.13224/j.cnki.jasp.2015.07.025

M3 - 文章

AN - SCOPUS:84938718216

SN - 1000-8055

VL - 30

SP - 1721

EP - 1730

JO - Hangkong Dongli Xuebao/Journal of Aerospace Power

JF - Hangkong Dongli Xuebao/Journal of Aerospace Power

IS - 7

ER -

Stabilizing analysis of trapezoidal circumferential grooves on an axial rotor

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