Single-mode nonlinear Langevin emulation of magnetohydrodynamic turbulence

被引：9
|
作者：
Bandyopadhyay, Riddhi [1 ]
Matthaeus, William H.
Parashar, Tulasi N.
机构：
[1] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
来源：
PHYSICAL REVIEW E | 2018年 / 97卷 / 05期
关键词：
MEAN MAGNETIC-FIELD; COUPLED MAP LATTICES; LOW-FREQUENCY; ISOTROPIC TURBULENCE; HYDRODYNAMICAL TURBULENCE; STATISTICAL-THEORY; MHD TURBULENCE; 1/F NOISE; CASCADE; PLASMA;
D O I：
10.1103/PhysRevE.97.053211
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：
Based on the Langevin equation of Brownian motion, we present a simple model that emulates a typical mode in incompressible magnetohydrodynamic turbulence, providing a demonstration of several key properties. The model equation is consistent with von Karman decay law and Kolmogorov's symmetries. We primarily focus on the behavior of inertial range modes, although we also attempt to include some properties of the large-scale modes. Dissipation scales are not considered. Results from the model are compared with results from published direct numerical simulations.
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页数：11
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