Mesoscaling of Reynolds Shear Stress in Turbulent Channel and Pipe Flows

Autor:	Patrick McMurtry, Tie Wei, Joseph Klewicki, Paul C. Fife
Rok vydání:	2005
Předmět:	Boundary layer Classical mechanics Reynolds decomposition Direct numerical simulation Shear stress Aerospace Engineering Reynolds stress equation model Mechanics Reynolds stress Mathematics Open-channel flow Pipe flow
Zdroj:	Scopus-Elsevier
ISSN:	1533-385X 0001-1452
DOI:	10.2514/1.15617
Popis:	Experimental and numerical data of the Reynolds shear stress in turbulent channel and pipe flows under a mesonormalization are presented. The mesolength scale associated with this normalization is intermediate to the traditional inner and outer lengths. Justification for the mesoscales is provided by a direct analysis of the mean momentum equation. Specifically, the mesonormalization is revealed through a rescaling that appropriately reflects the physics of an internal mesolayer within which a balance breaking, and subsequent balance exchange of terms in the mean momentum equation takes place. Direct numerical simulation and experimental data are examined and shown to be in good agreement with the new scaling, supporting the new theory. Copyright © 2005 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::164cb7f3d183f89e3b713f33254dbe0a https://doi.org/10.2514/1.15617 Zobrazit plný text záznamu