Journal
COMPUTERS & FLUIDS
Volume 39, Issue 4, Pages 640-655Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compfluid.2009.11.001
Keywords
Turbulent channel flow; Spectral analysis; Turbulent kinetic energy; DNS
Funding
- National Science Foundation (NSF)
- Office of Naval Research (ONR)
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The development and assessment of spectral turbulence models requires knowledge of the spectral turbulent kinetic energy distribution as well as an understanding of the terms which determine the energy distribution in physical and wave number space. Direct numerical simulation (DNS) of turbulent channel flow yields numerical data that can be, and was, analyzed using a spatial Fast Fourier Transform (FFT) to obtain the various spectral turbulent kinetic energy balance terms, including the production, dissipation, diffusion, and the non-linear convective transfer terms. (C) 2009 Elsevier Ltd. All rights reserved.
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