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	Phase Invariant Proper Orthogonal Decomposition for the Study of a Compressed Vortex
	Julien MOREAU1; Mark FOGLEMAN2; G. CHARNAY1; J. BOREE3
刊名	JOURNAL OF THERMAL SCIENCE
	2005
卷号	14期号:2页码:108,113
关键词	Turbulence Pod Piv Cycle To Cycle Fluctuations
英文摘要	We propose here an experimental investigation of a vortex submitted to a radial perturbation while being compressed. This experiment reproduces a model situation of the complex flows that take place in a real engine cylinder. An isolated tumbling flow is first submitted to an injection of fluid and then compressed and measurements are realised by Particle Image Velocimetry (PIV). The Proper Orthogonal Decomposition is known to be an unbiased method to identify the coherent structures of turbulent flows. It is possible to make this decomposition for a given phase or to create a set of basis functions with the whole set of compression stroke velocity fields. First, the experimental set-up will be presented, then the second part provides the POD principle. Results of phased POD decomposition of the compression of the unperturbated vortex will be presented. Finally results from the time invariant POD will be discussed to study the influence of the jet perturbation in the compression of a vortex.
公开日期	2013-03-11
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/53186]
专题	工程热物理研究所_Journal of Thermal Science
推荐引用方式 GB/T 7714	Julien MOREAU1,Mark FOGLEMAN2,G. CHARNAY1,et al. Phase Invariant Proper Orthogonal Decomposition for the Study of a Compressed Vortex[J]. JOURNAL OF THERMAL SCIENCE,2005,14(2):108,113.
APA	Julien MOREAU1,Mark FOGLEMAN2,G. CHARNAY1,&J. BOREE3.(2005).Phase Invariant Proper Orthogonal Decomposition for the Study of a Compressed Vortex.JOURNAL OF THERMAL SCIENCE,14(2),108,113.
MLA	Julien MOREAU1,et al."Phase Invariant Proper Orthogonal Decomposition for the Study of a Compressed Vortex".JOURNAL OF THERMAL SCIENCE 14.2(2005):108,113.

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