Numerical Investigation of the Unsteady Tip Leakage Flow and Rotating Stall Inception in a Transonic Compressor | |
Zhang, Yanfeng2; Lu, Xingen1; Chu, Wuli2; Zhu, Junqiang1 | |
刊名 | JOURNAL OF THERMAL SCIENCE
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2010-07-01 | |
卷号 | 19期号:4页码:310-317 |
关键词 | transonic axial-flow compressor tip clearance flow stall inception unsteadiness |
英文摘要 | It is well known that tip leakage flow has a strong effect on the compressor performance and stability. This paper reports on a numerical investigation of detailed flow structures in an isolated transonic compressor rotor-NASA Rotor 37 at near stall and stalled conditions aimed at improving understanding of changes in 3D tip leakage flow structures with rotating stall inception. Steady and unsteady 3D Navier-Stokes analyses were conducted to investigate flow structures in the same rotor. For steady analysis, the predicted results agree well with the experimental data for the estimation of compressor rotor global performance. For unsteady flow analysis, the unsteady flow nature caused by the breakdown of the tip leakage vortex in blade tip region in the transonic compressor rotor at near stall condition has been captured with a single blade passage. On the other hand, the time-accurate unsteady computations of multi-blade passage at near stall condition indicate that the unsteady breakdown of the tip leakage vortex triggered the short length-scale - spike type rotating stall inception at blade tip region. It was the forward spillage of the tip leakage flow at blade leading edge resulting in the spike stall inception. As the mass flow ratio is decreased, the rotating stall cell was further developed in the blade passage. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Thermodynamics ; Engineering, Mechanical |
研究领域[WOS] | Thermodynamics ; Engineering |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000279656900004 |
公开日期 | 2015-12-22 |
内容类型 | 期刊论文 |
源URL | [http://ir.etp.ac.cn/handle/311046/106484] ![]() |
专题 | 工程热物理研究所_中国科学院工程热物理所(论文库)_期刊论文(SCI) |
作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.NW Polytech Univ, Sch Power & Energy, Xian 710072, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Yanfeng,Lu, Xingen,Chu, Wuli,et al. Numerical Investigation of the Unsteady Tip Leakage Flow and Rotating Stall Inception in a Transonic Compressor[J]. JOURNAL OF THERMAL SCIENCE,2010,19(4):310-317. |
APA | Zhang, Yanfeng,Lu, Xingen,Chu, Wuli,&Zhu, Junqiang.(2010).Numerical Investigation of the Unsteady Tip Leakage Flow and Rotating Stall Inception in a Transonic Compressor.JOURNAL OF THERMAL SCIENCE,19(4),310-317. |
MLA | Zhang, Yanfeng,et al."Numerical Investigation of the Unsteady Tip Leakage Flow and Rotating Stall Inception in a Transonic Compressor".JOURNAL OF THERMAL SCIENCE 19.4(2010):310-317. |
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