On wave turbulence in MHD

被引：13

作者：

Galtier, S ^{[1
]}

Nazarenko, SV ^{[1
]}

Newell, AC ^{[1
]}

机构：

[1] Univ Warwick, Inst Math, Coventry CV4 7AL, W Midlands, England

来源：

NONLINEAR PROCESSES IN GEOPHYSICS | 2001年 / 8卷 / 03期

关键词：

D O I：

10.5194/npg-8-141-2001

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We describe the fundamental differences between weak (wave) turbulence in incompressible and weakly compressible MHD at the level of three-wave interactions. The main difference is in the structure of the resonant manifolds and the mechanisms of redistribution of spectral densities along the applied magnetic field B-0. Similar to pure acoustic waves, a three-wave resonance between collinear wavevectors is observed but, in addition, we also have a resonance through tilted planes and spheres. The properties of resonances and their consequences for the asymptotics are also discussed.

引用

页码：141 / 150

页数：10

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