Numerical Investigation of the Unsteady Tip Leakage Flow and Rotating Stall Inception in a Transonic Compressor

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	Numerical Investigation of the Unsteady Tip Leakage Flow and Rotating Stall Inception in a Transonic Compressor
	Yanfeng Zhang1 ; Xingen Lu2. Wuli Chul ; Junqiang Zhu2
刊名	JOURNAL OF THERMAL SCIENCE
	2010
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记录号	WOS:000279656900004
公开日期	2013-01-06
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/51631]
专题	工程热物理研究所_Journal of Thermal Science_期刊论文
推荐引用方式 GB/T 7714	Yanfeng Zhang1,Xingen Lu2. Wuli Chul,Junqiang Zhu2. 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	Yanfeng Zhang1,Xingen Lu2. Wuli Chul,&Junqiang Zhu2.(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	Yanfeng Zhang1,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.