Turbulent magnetic pressure instability in stratified turbulence

被引：0

作者：

Kemel, K. ^{[1
]}

Brandenburg, A. ^{[1
]}

Kleeorin, N.

Rogachevskii, I.

机构：

[1] AlbaNova Univ Ctr, NORDITA, SE-10691 Stockholm, Sweden

来源：

ADVANCES IN PLASMA ASTROPHYSICS | 2011年 / 274期

关键词：

turbulence; MHD; sunspots; FLUX;

D O I：

10.1017/S1743921311007538

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A reduction of total mean turbulent pressure due to the presence of magnetic fields was previously shown to be a measurable effect in direct numerical simulations. However, in the studied parameter regime the formation of large-scale structures, as anticipated from earlier mean-field simulations, was not found. An analysis of the relevant mean-field parameter dependency and the parameter domain of interest is conducted in order to clarify this apparent discrepancy.

引用

页码：473 / 475

页数：3

共 10 条

[1] Hydromagnetic turbulence in computer simulations [J].

Brandenburg, A ;

Dobler, W .

COMPUTER PHYSICS COMMUNICATIONS, 2002, 147 (1-2) :471-475

[2] Large-scale magnetic flux concentrations from turbulent stresses [J].

Brandenburg, A. ;

Kleeorin, N. ;

Rogachevskii, I. .

ASTRONOMISCHE NACHRICHTEN, 2010, 331 (01) :5-13

[3]

BRANDENBURG A, 2010, ARXIV10055700

[4] POSSIBILITY OF AN INVERSE CASCADE OF MAGNETIC HELICITY IN MAGNETOHYDRODYNAMIC TURBULENCE [J].

FRISCH, U ;

POUQUET, A ;

LEORAT, J ;

MAZURE, A .

JOURNAL OF FLUID MECHANICS, 1975, 68 (APR29) :769-778

[5]

Kemel K., 2010, IAU S

[6] Stability and equilibrium of emerged magnetic flux [J].

Kitchatinov, LL ;

Mazur, MV .

SOLAR PHYSICS, 2000, 191 (02) :325-340

[7] INERTIAL RANGES IN 2-DIMENSIONAL TURBULENCE [J].

KRAICHNAN, RH .

PHYSICS OF FLUIDS, 1967, 10 (07) :1417-+

[8] Solar Magnetism: The State of Our Knowledge and Ignorance [J].

Parker, E. N. .

SPACE SCIENCE REVIEWS, 2009, 144 (1-4) :15-24

[9] Magnetic fluctuations and formation of large-scale inhomogeneous magnetic structures in a turbulent convection [J].

Rogachevskii, Igor ;

Kleeorin, Nathan .

PHYSICAL REVIEW E, 2007, 76 (05)

[10]

SPRUIT HC, 1981, ASTRON ASTROPHYS, V102, P129

← 1 →