Generation of magnetic fields by large-scale vortices in rotating convection.
Generation of magnetic fields by large-scale vortices in rotating convection.
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DOI：
10.1103/physreve.91.041001
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发表时间：
2015-03
期刊：
影响因子：
--
通讯作者：
C. Guervilly;D. Hughes;C. Jones
中科院分区：
文献类型：
--
作者：
C. Guervilly;D. Hughes;C. Jones
We propose a self-consistent dynamo mechanism for the generation of large-scale magnetic fields in natural objects. Recent computational studies have described the formation of large-scale vortices in rotating turbulent convection. Here we demonstrate that for magnetic Reynolds numbers below the threshold for small-scale dynamo action, such turbulent flows can sustain large-scale magnetic fields, i.e., fields with a significant component on the scale of the system.
