Turbulent Processes and Mean-Field Dynamo

IF 9.1 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Space Science Reviews Pub Date : 2023-09-28 DOI:10.1007/s11214-023-00999-3

Axel Brandenburg, Detlef Elstner, Youhei Masada, Valery Pipin

引用次数: 3

Abstract

Abstract 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 $\alpha $ α 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.

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湍流过程与平均场发电机

平均场发电机理论在太阳物理和星系磁学中有着重要的应用。我们讨论了与太阳对流区大规模磁场产生有关的许多湍流效应中的一些。然后用平均场描述来说明$\ α $ α效应、湍流抽运、湍流磁扩散率和其他对现代太阳发电机模型的影响。我们还讨论了如何从局部对流模拟中推导湍流输运系数，然后将其用于平均场模式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Space Science Reviews 地学天文-天文与天体物理

CiteScore

19.70

自引率

3.90%

发文量

审稿时长

4-8 weeks

期刊介绍： Space Science Reviews (SSRv) stands as an international journal dedicated to scientific space research, offering a contemporary synthesis across various branches of space exploration. Emphasizing scientific outcomes and instruments, SSRv spans astrophysics, physics of planetary systems, solar physics, and the physics of magnetospheres & interplanetary matter. Beyond Topical Collections and invited Review Articles, Space Science Reviews welcomes unsolicited Review Articles and Special Communications. The latter encompass papers related to a prior topical volume/collection, report-type papers, or timely contributions addressing a robust combination of space science and technology. These papers succinctly summarize both the science and technology aspects of instruments or missions in a single publication.