SIMULATION OF MINI-MAGNETOSPHERIC PLASMA PROPULSION (M2P2)
SIMULATION OF MINI-MAGNETOSPHERIC PLASMA PROPULSION (M2P2)
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微型磁层等离子体推进（M2P2）的模拟
DOI：
10.2514/6.2003-4886
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
N. Singh
中科院分区：
文献类型：
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作者：
S. Saha;N. Singh
本文用三维混合粒子胞（PIC）模型研究了等离子体流与膨胀磁泡的相互作用。当高密度热等离子体被注入偶极磁场时，等离子体被捕获在闭合的磁力线中。当等离子体压力超过局部磁压力时，膨胀的等离子体使磁场膨胀，形成磁泡。类似太阳风的等离子体流与磁泡相互作用，从而在相互作用区形成弓形激波结构。等离子体流粒子聚集在相互作用区，其中一些粒子也被反射。最终，磁膨胀停止，形成了一个对峙冲击。原来的偶极磁场，其福尔斯下降为3 R，膨胀到它福尔斯下降为1 R的程度。
Using a 3-D hybrid pa rticle-in-cell (PIC) model we have presented h ere the interaction o f a plasma stream with an inflated magnetic bubble. When h igh-density thermal plasma is injected into a dipole magnetic field, the plasma gets trapped in the closed magnetic field lines. When the plasma pressures exceeds the local magnetic pressure, the expanding plasma inflates the magnetic field forming a magnetic bubble. Plasma stream resembling solar wind interacts with the magnetic bubble thereby forming a bow-shock structure at t he interaction zone. Plasma stream particles are accumulated at the interaction zone and some of them are reflected also. Eventually, the magnetic inflation comes to a halt and a standoff shock is formed. The original dipole magnetic field, which falls as 3 R , is inflated to the extent that it falls as 1 R .