Identification of vortices in a transonic compressor flow and the stall process

HUANG Xu-dong; CHEN Hai-xin; FU Song; David Wisler; Aspi Wadia; G. Scott McNulty

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Identification of vortices in a transonic compressor flow and the stall process

叶轮机械 | 更新时间：2026-07-07

- Identification of vortices in a transonic compressor flow and the stall process
- Identification of vortices in a transonic compressor flow and the stall process
- 航空动力学报 2007年22卷第9期
- 作者机构：
  
  1. School of Aerospace, Tsinghua University,Beijing,100084
  2. GE Aircraft Engines, Mail Drop A411, One Neumann Way,OH,Cincinnati,USA,45215
- 作者简介：
- 基金信息：
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  中图分类号：
- 纸质出版：2007
- 稿件说明：
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HUANG Xu-dong, CHEN Hai-xin, FU Song, 等. Identification of vortices in a transonic compressor flow and the stall process[J]. 航空动力学报, 2007,22(9).

HUANG Xu-dong, CHEN Hai-xin, FU Song, et al. Identification of vortices in a transonic compressor flow and the stall process[J]. 2007, 22(9).
HUANG Xu-dong, CHEN Hai-xin, FU Song, 等. Identification of vortices in a transonic compressor flow and the stall process[J]. 航空动力学报, 2007,22(9). DOI：

HUANG Xu-dong, CHEN Hai-xin, FU Song, et al. Identification of vortices in a transonic compressor flow and the stall process[J]. 2007, 22(9). DOI：

摘要

A novel vortex identification method for the visualization of the flow field is used for the study of the stall process of a transonic compressor.The parameter η4

which is one of the five invariants formed by the stain rate and vorticity tensors from the theory of modern rational mechanics

is found to have good ability to identify vortex stretching and vortex relaxation/breakdown processes

is introduced here to identify the tip leakage vortices.Compare with former generally used DPH(dynamic pressure head) contour

the new method reveals much more flow details which may advance our understanding of the compressor behaviors.The Vortices details are revealed in both peak efficiency and near stall condition.A possible stall process is also suggested based on the vortices analysis.The tip leakage flow from mid-chord

besides leading edge leakage flow

is also considered to play an important role in the stall process.

Abstract

A novel vortex identification method for the visualization of the flow field is used for the study of the stall process of a transonic compressor.The parameter η4

which is one of the five invariants formed by the stain rate and vorticity tensors from the theory of modern rational mechanics

is found to have good ability to identify vortex stretching and vortex relaxation/breakdown processes

is introduced here to identify the tip leakage vortices.Compare with former generally used DPH(dynamic pressure head) contour

besides leading edge leakage flow

is also considered to play an important role in the stall process.

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