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A simultaneous spectral/spatial analysis of turbulent kinetic energy in turbulent channel flow: the effect of the Reynolds number

DOI: 10.1615/THMT-18.290
pages 315-324

J. R. Andrade
Federal University of Uberlandia, Department of Mechanical Engineering, Fluid Mechanics Laboratory, Campus Santa Monica, Avenida Joao Nave de Avila, 2121, CEP 38.400-902, Uberlandia, MG, Brazil; Unite de Mecanique de Lille, Polytech'Lille, Universite de Lille, Cite Scientifique, Av. Paul Langevin, 59650 Villeneuve d'Ascq, France

R. S. Martins
Unite de Mecanique de Lille, Polytech'Lille, Universite de Lille, Cite Scientifique, Av. Paul Langevin, 59650 Villeneuve d'Ascq, France; Mechanical Engineering Coordination, Instituto Federal do Esprito Santo, Av. Vitria, 1729, CEP 29.040-780, Vitria, ES, Brazil

Gilmar Mompean
Unite de Mecanique de Lille, Polytech'Lille, Universite de Lille, Cite Scientifique, Av. Paul Langevin, 59650 Villeneuve d'Ascq, France

L. Thais
Unite de Mecanique de Lille, Polytech'Lille, Universite de Lille, Cite Scientifique, Av. Paul Langevin, 59650 Villeneuve d'Ascq, France

Thomas B. Gatski
Institut Pprime, CNRS-Université de Poitiers-ENSMA F86036 Poitiers cedex, France; Center for Coastal Physical Oceanography and Ocean, Earth and Atmospheric Sciences Old Dominion University, Norfolk, Virginia 23529 USA

Abstrakt

In the present work, a numerical study on the production and dissipation terms of the budget of turbulent kinetic energy is performed for a channel flow, focusing on the influence of the Reynolds number. Several energy fluxes are analyzed for wall bounded turbulence due to both spectral and spatial energy variations by using direct numerical simulations of a fully developed turbulent channel flow at Reτ = 180 and Reτ = 1000.

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