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首页> 外文会议>NATO ARW and IUTAM Symposium Sep 2-7, 2001 Zakopane, Poland >A model for magnetic reconnection
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A model for magnetic reconnection

机译：磁重连模型

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Magnetic reconnection is a diffusive process whereby the topology of a magnetic field imbedded in a highly conducting fluid may change with time. The process is frequently represented by the simple diagram shown in figure 1 in which the oppositely directed lines of force AB, CD reconnect to the configuration AC, BD. A huge literature emanating from the early papers of Sweet (1958), Parker (1957) and Petschek (1964) has evolved; for a recent thorough exposition including discussion of the important application of the theory in solar, magnetospherie and other contexts, see Priest & Forbes (2000). Despite the prolonged research on this topic, there seems to be as yet no simple model which demonstrates unambiguously the necessarily time-dependent process indicated in figure 1 which takes account of the curvature of the field lines before and after reconnection. It is the purpose of this short paper to provide such a model. We restrict attention here to two-dimensional evolution in an incompressible fluid; generalisation to the more challenging problem of three-dimensional skewed flux tubes may however also be possible.
机译：磁重连接是一个扩散过程，因此嵌入高导电流体中的磁场拓扑可能随时间变化。该过程通常由图1所示的简单图表表示，其中，力A，B的方向相反的线重新连接到配置AC，BD。源自Sweet（1958），Parker（1957）和Petschek（1964）早期论文的大量文献不断发展。有关最近的详尽论述，包括有关该理论在太阳，磁极和其他环境中的重要应用的讨论，请参见Priest＆Forbes（2000）。尽管对此主题进行了长期的研究，但似乎还没有一个简单的模型可以清楚地说明图1所示的必要时变过程，该过程考虑了重新连接前后的磁力线曲率。本文的目的是提供这样一个模型。我们将注意力集中在不可压缩流体的二维演化中。然而，也可以将三维偏斜通量管推广到更具挑战性的问题。

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