Direct Numerical Simulation Tests of Eddy Viscosity in Two Dimensions

Details Direct Numerical Simulation Tests of Eddy Viscosity in Two Dimensions Direct Numerical Simulation Tests of Eddy Viscosity in Two Dimensions

1995-06-21

arxiv.org/abs/chao-dyn/9506007v1

Nonlinear Sciences

Chaotic Dynamics

9 pages (RevTeX) and 5 figures, published in Phys. Fluids 6, 2548 (1994)

Scientific paper

10.1063/1.868437

Two-parametric eddy viscosity (TPEV) and other spectral characteristics of two-dimensional (2D) turbulence in the energy transfer sub-range are calculated from direct numerical simulation (DNS) with 512$^2$ resolution. The DNS-based TPEV is compared with those calculated from the test field model (TFM) and from the renormalization group (RG) theory. Very good agreement between all three results is observed.

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