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Reynold-Number Effects on Near-Wall TurbulenceThe Reynolds stress budget in a full developed turbulent channel flow for three Reynolds numbers (Re = 180,395,590) are used to investigate the near wall scaling of various turbulence quantities. We find that as the Reynolds number increases, the extent of the region where the production of the kinetic energy is equal to the dissipation increases. At the highest Reynolds number the region of equilibrium extends from y+ - 120 to y+ = 240. As the Reynolds number increases, we find that wall scaling collapses the budgets for the streamwise fluctuating component, but the budgets for the other two components show Reynolds number dependency.
Document ID
20020033019
Document Type
Conference Paper
Authors
Mansour, N. N. (NASA Ames Research Center Moffett Field, CA United States)
Kim, J. (California Univ. Los Angeles, CA United States)
Moser, R. D. (Illinois Univ. at Urbana-Champaign IL United States)
Rai, Man Mohan
Date Acquired
August 20, 2013
Publication Date
January 1, 1995
Subject Category
Fluid Mechanics and Thermodynamics
Meeting Information
48th Annual Meeting, Division of Fluid Dynamics of the American Physical Society(Irvine, CA)
Funding Number(s)
PROJECT: RTOP 505-59-53
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.