Scale Dependent Stochastic Self-energy Model of the Energy Transfers in Turbulent Channel Flows

V. Kitsios,J. A. Sillero,J. S. Frederiksen,J. Soria

Springer Proceedings in Physics（2016）

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摘要

The forward and inverse energy cascades in turbulent channel flow are studied by extracting flow specific subgrid coefficients. The effect that subgrid scales of motion have on the resolved scales is quantified by developing subgrid models from the statistics of the differences between a reference direct numerical simulations (DNS) and a truncated DNS using the method of Frederiksen and Kepert, J. Atmos. Sci. 63:3006–3019, 2006 [1].

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关键词

Large Eddy Simulation, Direct Numerical Simulation, Subgrid Scale, Turbulent Channel Flow, Triadic Interaction

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