Dynamics of Large Eddies in Turbulent Channel Flows

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Dynamics of Large Eddies in Turbulent Channel Flows

Show simple item record Payne, F. R. en Hong, S. K. en 2010-06-09T16:15:27Z en 2010-06-09T16:15:27Z en 1987-06 en
dc.identifier.uri en
dc.description.abstract A turbulence model that describes dynamics of large, characteristic eddies in inhomogeneous flows is proposed; two closure parameters are initially undetermined. To determine the optimum values of these parameters, the present model is applied to channel flows at two Reynolds numbers. The nature of the closure parameters and their effects upon predicted Reynolds stresses and other turbulence structural quantities are examined and optimum values are suggested. It is demonstrated that the current Large-Eddy Interaction Model not only predicts Reynolds stresses reasonably but also presents an opportunity to illuminate typical characteristic motions of large-scale turbulence and the phenomenological aspects of engineering models for the two Reynolds numbers investigated. In addition, analysis of the spatial correlation integral suggests that a strange attractor found in the fully-developed channel flow has a low fractal dimension. en
dc.language.iso en_US en
dc.publisher University of Texas at Arlington en
dc.relation.ispartofseries Technical Report;246 en
dc.subject Reynolds stresses en
dc.subject Turbulence en
dc.subject Inhomogeneous flows en
dc.subject Channel flows en
dc.subject Large-eddy interaction model en
dc.subject.lcsh Fluid dynamics en
dc.subject.lcsh Mathematics Research en
dc.title Dynamics of Large Eddies in Turbulent Channel Flows en
dc.type Technical Report en
dc.publisher.department Department of Mathematics en

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