Large-Eddy Simulations of Fluid and Magnetohydrodynamic Turbulence Using Renormalized Parameters

Details Large-Eddy Simulations of Fluid and Magnetohydrodynamic Turbulence Using Renormalized Parameters Large-Eddy Simulations of Fluid and Magnetohydrodynamic Turbulence Using Renormalized Parameters

2003-03-15

arxiv.org/abs/nlin/0303029v2

Pramana 63 (2004) 553-562

Nonlinear Sciences

Chaotic Dynamics

12 pages, 4 figures: Proper figures inserted

Scientific paper

10.1007/BF02704483

In this paper a procedure for large-eddy simulation (LES) has been devised for fluid and magnetohydrodynamic turbulence in Fourier space using the renormalized parameters. The parameters calculated using field theory have been taken from recent papers by Verma [Phys. Rev. E, 2001; Phys. Plasmas, 2001]. We have carried out LES on $64^3$ grid. These results match quite well with direct numerical simulations of $128^3$. We show that proper choice of parameter is necessary in LES.

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