The three-dimensional breakup of a magnetic layer
The three-dimensional breakup of a magnetic layer
复制标题
磁性层的三维分解
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
M. Proctor
中科院分区：
文献类型：
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作者：
J. Wissink;D. Hughes;P. Matthews;M. Proctor
对磁浮力引起的一层磁场的不稳定性进行了三维数值模拟。这一层分解成许多相互关联的磁通量管，这些磁通量管变得越来越三维，尽管没有观察到强烈的拱形磁通量管。背景旋转的引入具有抑制不稳定性的主要效果。测量旋转引起的通量管扭转的a效应被发现是正的(在北半球)，但幅度很小。
ABSTRA C T Three-dimensional numerical simulations of the instability of a layer of magnetic field caused by magnetic buoyancy are carried out over a range of parameter values. The layer breaks up into a number of interlocking magnetic flux tubes that become increasingly threedimensional, although strongly arched flux tubes are not observed. The introduction of background rotation has the principal effect of suppressing the instability. The a -effect, which measures the twist of the flux tubes induced by the rotation, is found to be positive (in the northern hemisphere) but small in magnitude.