Large eddy simulation of decaying magnetohydrodynamic turbulence with dynamic subgrid-modeling

被引：52

作者：

Agullo, O ^{[1
]}

Müller, WC ^{[1
]}

Knaepen, B ^{[1
]}

Carati, D ^{[1
]}

机构：

[1] Free Univ Brussels, Euratom Belgian State Assoc, B-1050 Brussels, Belgium

来源：

PHYSICS OF PLASMAS | 2001年 / 8卷 / 07期

关键词：

D O I：

10.1063/1.1372337

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The numerical large eddy simulation (LES) technique is tested on decaying magnetohydrodynamic (MHD) turbulence. The LES approach allows for a strong reduction in computational cost compared to direct numerical simulations by modeling the effects of the smallest turbulent scales instead of computing them directly. Two small-scale models of eddy-viscosity type are presented for this purpose in combination with a procedure for the self-consistent calculation of the model parameters in the course of the simulation. The method is successfully tested by comparing the obtained results to a high-resolution direct numerical simulation of decaying three-dimensional MHD turbulence. (C) 2001 American Institute of Physics.

引用

页码：3502 / 3505

页数：4

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