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A Reynolds stress model for near-wall turbulenceThe paper formulates a tensorially consistent near-wall second-order closure model. Redistributive terms in the Reynolds stress equations are modeled by an elliptic relaxation equation in order to represent strongly nonhomogeneous effects produced by the presence of walls; this replaces the quasi-homogeneous algebraic models that are usually employed, and avoids the need for ad hoc damping functions. The model is solved for channel flow and boundary layers with zero and adverse pressure gradients. Good predictions of Reynolds stress components, mean flow, skin friction, and displacement thickness are obtained in various comparisons to experimental and direct numerical simulation data. The model is also applied to a boundary layer flowing along a wall with a 90-deg, constant-radius, convex bend.
Document ID
19930053945
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Durbin, P. A.
(NASA Ames Research Center/Stanford Center for Turbulence Research CA, United States)
Date Acquired
August 16, 2013
Publication Date
April 1, 1993
Publication Information
Publication: Journal of Fluid Mechanics
ISSN: 0022-1120
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
93A37942
Distribution Limits
Public
Copyright
Other

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