Analysis of induced factors of flow instability in a two-stage fan under subsonic condition

Yan Hui Wu; Zhuo Xun Zhang; Wu Li Chu; Hao Guang Zhang

Analysis of induced factors of flow instability in a two-stage fan under subsonic condition

Yan Hui Wu, Zhuo Xun Zhang, Wu Li Chu, Hao Guang Zhang

动力与能源学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

3D numerical simulation was conducted for an axial two-stage transonic fan with partspan shroud under subsonic condition. The calculated overall and blade element performance lines showed good agreement with the experiments, so detailed flow field analysis was carried out. It was found that the low-energy zone due to separation of boundary layer of the first stage's rotor tip and the blocking it caused were the factors leading to flow instability under subsonic condition.

源语言	英语
页（从-至）	1113-1116
页数	4
期刊	Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
卷	31
期	7
出版状态	已出版 - 7月 2010

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title = "Analysis of induced factors of flow instability in a two-stage fan under subsonic condition",

abstract = "3D numerical simulation was conducted for an axial two-stage transonic fan with partspan shroud under subsonic condition. The calculated overall and blade element performance lines showed good agreement with the experiments, so detailed flow field analysis was carried out. It was found that the low-energy zone due to separation of boundary layer of the first stage's rotor tip and the blocking it caused were the factors leading to flow instability under subsonic condition.",

keywords = "Flow stability, Numerical simulation, Subsonic condition, Two-stage fan",

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AU - Zhang, Zhuo Xun

AU - Chu, Wu Li

AU - Zhang, Hao Guang

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Y1 - 2010/7

N2 - 3D numerical simulation was conducted for an axial two-stage transonic fan with partspan shroud under subsonic condition. The calculated overall and blade element performance lines showed good agreement with the experiments, so detailed flow field analysis was carried out. It was found that the low-energy zone due to separation of boundary layer of the first stage's rotor tip and the blocking it caused were the factors leading to flow instability under subsonic condition.

AB - 3D numerical simulation was conducted for an axial two-stage transonic fan with partspan shroud under subsonic condition. The calculated overall and blade element performance lines showed good agreement with the experiments, so detailed flow field analysis was carried out. It was found that the low-energy zone due to separation of boundary layer of the first stage's rotor tip and the blocking it caused were the factors leading to flow instability under subsonic condition.

KW - Flow stability

KW - Numerical simulation

KW - Subsonic condition

KW - Two-stage fan

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SN - 0253-231X

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JO - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

JF - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

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ER -

Analysis of induced factors of flow instability in a two-stage fan under subsonic condition

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