NDLI: Development of the Large-Scale Structures in the Intermediate Region of the Three-Dimensional Wall Jet

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Sun, Hongguang Ewing, Dan
Copyright Year	2002
Abstract	The development of the large-scale structures in the intermediate region of the three-dimensional wall jet was examined using measurements of the mean streamwise vorticity and the two-point, two-time correlations of the streamwise fluctuating velocity in the vertical and lateral directions. It was found that a dominant large-scale double horse-shoe structure persisted to 40 diameters downstream of the jet exit. It was also found that the structure continued to evolve throughout the intermediate field. In particular, the inner horse-shoe vortex was induced toward the wall, while the position of the outer horseshoe vortex relative to the half-width moved toward the centerline. The inclination of this structure relative to the wall also increased as the flow evolved downstream. These changes in the structure combined to cause the lateral spread rate of the jet to aprroximately double in the intermediate field.
Sponsorship	Fluids Engineering Division
Starting Page	1179
Ending Page	1186
Page Count	8
File Format	PDF
ISBN	0791836169
DOI	10.1115/FEDSM2002-31414
e-ISBN	0791836002
Volume Number	Volume 2: Symposia and General Papers, Parts A and B
Conference Proceedings	ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
Language	English
Publisher Date	2002-07-14
Publisher Place	Montreal, Quebec, Canada
Access Restriction	Subscribed
Subject Keyword	Flow (dynamics) Vortices Vorticity
Content Type	Text
Resource Type	Article

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