RELATIVISTIC TWO-FLUID SIMULATIONS OF GUIDE FIELD MAGNETIC RECONNECTION
RELATIVISTIC TWO-FLUID SIMULATIONS OF GUIDE FIELD MAGNETIC RECONNECTION
复制标题
导场磁重联的相对论二流体模拟
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
A. Klimas
中科院分区：
文献类型：
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作者：
S. Zenitani;M. Hesse;A. Klimas
采用二维相对论双流体模拟方法，研究了剪切磁结构（带导向场）中相对论磁重联的非线性演化。相对论导场重联的特点是流出通道内和流出通道周围的电荷分离和导场压缩。随着引导场的增大，出射能组成由焓为主变为坡印廷为主。双流体模型的惯性效应对维持磁重联起着重要作用。简要讨论了单流体磁流体动力学方法和相对论重联的物理模型的意义。
The nonlinear evolution of relativistic magnetic reconnection in sheared magnetic configuration (with a guide field) is investigated by using two-dimensional relativistic two-fluid simulations. Relativistic guide field reconnection features the charge separation and the guide field compression in and around the outflow channel. As the guide field increases, the composition of the outgoing energy changes from enthalpy-dominated to Poynting-dominated. The inertial effects of the two-fluid model play an important role to sustain magnetic reconnection. Implications for the single-fluid magnetohydrodynamic approach and the physics models of relativistic reconnection are briefly addressed.