Turbulent Processes and Mean-Field Dynamo

被引：10

作者：

Brandenburg, Axel ^{[1
,2
,3
,4
,5
,6
]}

Elstner, Detlef ^{[7
]}

Masada, Youhei ^{[8
]}

Pipin, Valery ^{[9
]}

机构：

[1] KTH Royal Inst Technol, Nordita, Hannes Alfvens Vag 12, S-10691 Stockholm, Sweden

[2] Stockholm Univ, Hannes Alfvens Vag 12, S-10691 Stockholm, Sweden

[3] Oskar Klein Ctr, Dept Astron, S-10691 Stockholm, Sweden

[4] Ilia State Univ, Sch Nat Sci & Med, Tbilisi 0194, Georgia

[5] Carnegie Mellon Univ, McWilliams Ctr Cosmol, Pittsburgh, PA 15213 USA

[6] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA

[7] Leibniz Inst Astrophys Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany

[8] Fukuoka Univ, Dept Appl Phys, Fac Sci, Fukuoka 8140180, Japan

[9] Russian Acad Sci, Inst Solar Terr Phys, Irkutsk 664033, Russia

来源：

SPACE SCIENCE REVIEWS | 2023年 / 219卷 / 07期

基金：

瑞典研究理事会;

关键词：

Large-scale dynamos; Turbulence; Stellar magnetism; Magnetic helicity; LARGE-SCALE DYNAMOS; SOLAR TORSIONAL OSCILLATIONS; DIRECT NUMERICAL SIMULATIONS; MAGNETIC HELICITY; CROSS-HELICITY; ROTATING MAGNETOCONVECTION; ASTROPHYSICAL DYNAMOS; ELECTROMOTIVE-FORCE; CONVECTION ZONE; NONLOCAL ALPHA;

D O I：

10.1007/s11214-023-00999-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Mean-field dynamo theory has important applications in solar physics and galactic magnetism. We discuss some of the many turbulence effects relevant to the generation of large-scale magnetic fields in the solar convection zone. The mean-field description is then used to illustrate the physics of the a effect, turbulent pumping, turbulent magnetic diffusivity, and other effects on a modern solar dynamo model. We also discuss how turbulence transport coefficients are derived from local simulations of convection and then used in mean-field models.

引用

页数：57

共 256 条

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ATMOSPHERE, 2023, 14 (06)

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