Fundamentals of the Plasma Sail Concept: Magnetohydrodynamic and Kinetic Studies
Fundamentals of the Plasma Sail Concept: Magnetohydrodynamic and Kinetic Studies
复制标题
等离子帆概念的基础知识：磁流体动力学和动力学研究
DOI：
10.2514/1.3737
复制
发表时间：
2005
影响因子：
1.9
通讯作者：
T. Linde
中科院分区：
文献类型：
--
作者：
G. Khazanov;P. Delamere;K. Kabin;T. Linde
微型磁层等离子体推进系统（M2P2）由Winglee等人提出，通过在航天器周围产生一个大的磁泡来利用太阳风的动能。这个气泡将由等离子体注入到由航天器上的电磁铁产生的强磁场中来支撑。在M2P2的情况下，磁泡的大小实际上小于或相当于这些特征参数的尺度。因此，必须使用动力学方法，解决小规模的物理机制。一个两个组成部分的方法是通过确定一个初步估计的动量转移到等离子体帆。第一部分是对航天器附近等离子体流的自洽MHD模拟。结果表明，流体处理是有效的，大约5公里的源。在此边界处使用MHD解作为混合模拟的初始条件。混合动力模拟表明，传递到等离子体帆最内部区域的力比MHD对应物小得多（1000）。此外，这些力大致垂直于太阳风流动，与基本上与太阳风方向对齐的MHD力相反。
The Mini-Magnetospheric Plasma Propulsion system (M2P2) was proposed by Winglee et al. to harness the kinetic energy of the solar wind by creating a large magnetic bubble around the spacecraft. This bubble would be supported by plasma injection into a strong magnetic field produced by an electromagnet onboard the spacecraft. In the case of M2P2, the size of the magnetic bubble is actually less than, or comparable to, the scale of these characteristic parameters. Therefore, a kinetic approach, which addresses the small-scale physical mechanisms, must be used. A two-component approach is adopted to determining a preliminary estimate of the momentum transfer to the plasma sail. The first component is a self-consistent MHD simulation of the plasma flow near the spacecraft. It is shown that the fluid treatment is valid to roughly 5 km from the source. The MHD solution is used at this boundary as initial conditions for the hybrid simulation. The hybrid simulations showed that the forces delivered to the innermost regions of the plasma sail are considerably smaller (∼10) than their MHD counterparts. Furthermore, these forces are roughly perpendicular to the solar wind flow, in contrast to the MHD forces that are essentially aligned with the solar wind direction.
影响因子：
2.8
作者：
HAVNES, O;GOERTZ, CK;IP, W
通讯作者：
IP, W