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Organized motion in turbulent flowA review of organized motion in turbulent flow indicates that the transport properties of most shear flows are dominated by large-scale vortex nonrandom motions. The mean velocity profile of a turbulent boundary layer consists of a viscous sublayer, buffer layer, and a logarithmic outer layer; an empirical formula of Coles (1956) applies to various pressure gradients. The boundary layer coherent structure was isolated by the correlation methods of Townsend (1956) and flow visualization by direct observations of complex unsteady turbulent motions. The near-wall studies of Willmart and Wooldridge (1962) used the space-time correlation for pressure fluctuations at the wall under a thick turbulent boundary layer; finally, organized motion in free shear flows and transition-control of mixing demonstrated that the Reynolds number invariance of turbulence shows wide scatter.
Document ID
19810039556
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Cantwell, B. J.
(Stanford University Stanford, Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
81A23960
Funding Number(s)
CONTRACT_GRANT: NSG-2392
Distribution Limits
Public
Copyright
Other

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