论文标题

磁性水力学中局部反射对称性的小型混沌发电机和自发断裂

Small-scale chaotic dynamo and spontaneous breaking of local reflectional symmetry in magnetohydrodynamics

论文作者

Bershadskii, A.

论文摘要

使用直接数值模拟的结果表明,局部反射对称性的自发破坏(以及相应的局部动力学和磁性螺旋度)可以主导雷利(Rayleigh-b)中小尺度MHD Dyn​​amo的混乱动力学,在雷利(Rayleigh-b)中,在动力学上,在动力学上的跨性别且在近乎强度的face face face上,在动力学上,固定在近似的跨度,并在Kin中固定在Kin中。大磁性雷诺数。确定性和螺旋分布式混乱的概念已用于此目的。简要讨论了大规模和小规模的发电机机制以及所获得的结果在太阳光球的安静和活跃区域的应用。

It is shown, using results of direct numerical simulations, that the spontaneous breaking of local reflectional symmetry (and corresponding localized kinetic and magnetic helicities) can dominate chaotic dynamics of the small-scale MHD dynamo in the Rayleigh-B{é}nard convection, in kinetically forced flows under strong stratification, in the near-surface solar convection, and in kinetically forced flows at large magnetic Reynolds numbers. The notions of deterministic and helical distributed chaos have been used for this purpose. The coexistence of large- and small-scale dynamo mechanisms and applications of the obtained results to quiet and active regions of the solar photosphere have been briefly discussed.

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