Large-eddy simulation of magnetohydrodynamic turbulence

Müller, W. C.; Carati, D.

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Large-eddy simulation of magnetohydrodynamic turbulence

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Müller, W. C.
Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society;

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Müller, W. C., & Carati, D. (2002). Large-eddy simulation of magnetohydrodynamic turbulence. Computer Physics Communications, 147(1-2), 544-547.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-40AC-C

Abstract

Pseudospectral large-eddy simulations (LES) of incompressible magnetohydrodynamic (MHD) turbulence are performed with a maximum of 64(3) collocation points. Different gradient- diffusion type subgrid models are evaluated. This is done by comparing the obtained LES results to reference data stemming from high-resolution direct numerical simulations of decaying MHD turbulence with up to 512(3) spectral modes. A newly developed MHD subgrid model, based on the ideal cross-helicity invariant of MHD turbulence, is tested and observed to perform excellently well. (C) 2002 Elsevier Science B.V. All rights reserved.