Random walk of magnetic field lines: analytical theory versus simulations

被引：27

作者：

Shalchi, A. ^{[1
]}

Qin, G. ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2010年 / 330卷 / 02期

关键词：

Diffusion; Magnetic fields; Turbulence; SOLAR-WIND TURBULENCE; PERPENDICULAR DIFFUSION; CHARGED-PARTICLES; COSMIC-RAYS; NONAXISYMMETRIC TURBULENCE; NONLINEAR PARALLEL; SLAB TURBULENCE; TRANSPORT; COMPOUND; REGIMES;

D O I：

10.1007/s10509-010-0397-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The analytical nonlinear theory of magnetic field line random walk predicts the existence of nondiffusive transport for certain forms of the turbulence spectrum. In the present article we use computer simulations to test these predictions made for well-established one- and two-dimensional models of magnetic field fluctuations. For the first time it is shown by using simulations, that for a whole family of spectra a non-diffusive behavior of field line wandering can be found.

引用

页码：279 / 287

页数：9

共 44 条

[1] PROTON AND ELECTRON MEAN FREE PATHS - THE PALMER CONSENSUS REVISITED [J].

BIEBER, JW ;

MATTHAEUS, WH ;

SMITH, CW ;

WANNER, W ;

KALLENRODE, MB ;

WIBBERENZ, G .

ASTROPHYSICAL JOURNAL, 1994, 420 (01) :294-306

[2] Dominant two-dimensional solar wind turbulence with implications for cosmic ray transport [J].

Bieber, JW ;

Wanner, W ;

Matthaeus, WH .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1996, 101 (A2) :2511-2522

[3]

CARBONE V, 1995, J GEOPHYS RES, V95, P20673

[4]

CORRSIN S, 1959, ATMOSPHERIC DIFFUSIO, V6

[5] Anisotropy in fast and slow solar wind fluctuations [J].

Dasso, S ;

Milano, LJ ;

Matthaeus, WH ;

Smith, CW .

ASTROPHYSICAL JOURNAL, 2005, 635 (02) :L181-L184

[6] Waves and turbulence in magnetohydrodynamic direct numerical simulations [J].

Dmitruk, Pablo ;

Matthaeus, W. H. .

PHYSICS OF PLASMAS, 2009, 16 (06)

[7] Anisotropic Scaling of Magnetohydrodynamic Turbulence [J].

Horbury, Timothy S. ;

Forman, Miriam ;

Oughton, Sean .

PHYSICAL REVIEW LETTERS, 2008, 101 (17)

[8] Spacecraft observations of solar wind turbulence: an overview [J].

Horbury, TS ;

Forman, MA ;

Oughton, S .

PLASMA PHYSICS AND CONTROLLED FUSION, 2005, 47 :B703-B717

[9] STOCHASTIC ASPECTS OF MAGNETIC LINES OF FORCE WITH APPLICATION TO COSMIC-RAY PROPAGATION [J].

JOKIPII, JR ;

PARKER, EN .

ASTROPHYSICAL JOURNAL, 1969, 155 (3P1) :777-&

[10] THE LOCAL-STRUCTURE OF TURBULENCE IN INCOMPRESSIBLE VISCOUS-FLUID FOR VERY LARGE REYNOLDS-NUMBERS [J].

KOLMOGOROV, AN .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1991, 434 (1890) :9-13

← 1 2 3 4 5 →