Two Phases of Coherent Structure Motions in Turbulent Boundary Layer

Chin. Phys. Lett.

2007, Vol. 24

Issue (9): 2617-2620 DOI:

Original Articles

Two Phases of Coherent Structure Motions in Turbulent Boundary Layer

LIU Jian-Hua;JIANG Nan

Department of Mechanical Engineering, Tianjin University, Tianjin 300072

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LIU Jian-Hua, JIANG Nan 2007 Chin. Phys. Lett. 24 2617-2620

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Abstract Two phases of coherent structure motion are acquired after obtaining conditional phase-averaged waveforms for longitudinal velocity of coherent structures in turbulent boundary layer based on Harr wavelet transfer. The correspondences of the two phases to the two processes (i.e. ejection and sweep) during a burst are determined.

Keywords: 47.27.De 47.11.St 47.27.Nb

Received: 10 February 2007 Published: 16 August 2007

PACS:	47.27.De	(Coherent structures)
	47.11.St	(Multi-scale methods)
	47.27.nb	(Boundary layer turbulence ?)

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	LIU Jian-Hua
	JIANG Nan

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