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

[41] The nature of mean-field generation in three classes of optimal dynamos [J].

Brandenburg, Axel ;

Chen, Long .

JOURNAL OF PLASMA PHYSICS, 2020, 86 (01)

[42] Advances in mean-field dynamo theory and applications to astrophysical turbulence [J].

Brandenburg, Axel .

JOURNAL OF PLASMA PHYSICS, 2018, 84 (04)

[43] Strong nonlocality variations in a spherical mean-field dynamo [J].

Brandenburg, Axel ;

Chatterjee, Piyali .

ASTRONOMISCHE NACHRICHTEN, 2018, 339 (2-3) :118-126

[44] The Turbulent Chiral Magnetic Cascade in the Early Universe [J].

Brandenburg, Axel ;

Schober, Jennifer ;

Rogachevskii, Igor ;

Kahniashvili, Tina ;

Boyarsky, Alexey ;

Frohlich, Jog ;

Ruchayskiy, Oleg ;

Kleeorin, Nathan .

ASTROPHYSICAL JOURNAL LETTERS, 2017, 845 (02)

[45] Compensating Faraday Depolarization by Magnetic Helicity in the Solar Corona [J].

Brandenburg, Axel ;

Ashurova, Mohira B. ;

Jabbari, Sarah .

ASTROPHYSICAL JOURNAL LETTERS, 2017, 845 (02)

[46] Evolution of Co-existing Long and Short Period Stellar Activity Cycles [J].

Brandenburg, Axel ;

Mathur, Savita ;

Metcalfe, Travis S. .

ASTROPHYSICAL JOURNAL, 2017, 845 (01)

[47] STELLAR MIXING LENGTH THEORY WITH ENTROPY RAIN [J].

Brandenburg, Axel .

ASTROPHYSICAL JOURNAL, 2016, 832 (01)

[48] SELF-ASSEMBLY OF SHALLOW MAGNETIC SPOTS THROUGH STRONGLY STRATIFIED TURBULENCE [J].

Brandenburg, Axel ;

Kleeorin, Nathan ;

Rogachevskii, Igor .

ASTROPHYSICAL JOURNAL LETTERS, 2013, 776 (02)

[49] DETECTION OF NEGATIVE EFFECTIVE MAGNETIC PRESSURE INSTABILITY IN TURBULENCE SIMULATIONS [J].

Brandenburg, Axel ;

Kemel, Koen ;

Kleeorin, Nathan ;

Mitra, Dhrubaditya ;

Rogachevskii, Igor .

ASTROPHYSICAL JOURNAL LETTERS, 2011, 740 (02)

[50] Small-scale magnetic helicity losses from a mean-field dynamo [J].

Brandenburg, Axel ;

Candelaresi, Simon ;

Chatterjee, Piyali .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 398 (03) :1414-1422

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