PTetra, a Tool to Simulate Low Orbit Satellite–Plasma Interaction
PTetra, a Tool to Simulate Low Orbit Satellite–Plasma Interaction
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PTetra，模拟低轨道卫星与等离子体相互作用的工具
DOI：
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发表时间：
2012
影响因子：
1.5
通讯作者：
Richard Marchand
中科院分区：
文献类型：
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作者：
Richard Marchand
提出了一种卫星与空间等离子体相互作用的数值模拟模型。该方法基于对具有物理电荷和质量的所有等离子体物种的粒子在细胞模型中对等离子体的完全动力学描述。该模型还依赖于空间的离散化和非结构化四面体网格，该网格能够表示复杂的边界和逼真的航天器几何形状。在给定各种卫星部件上计算的体积电荷和电荷沉积的情况下，该程序求解了自洽电场。该模型是纯静电的，但它确实考虑了可能的恒定和均匀的背景磁场的影响。
A model is presented to numerically simulate the time-dependent interaction of satellites with space plasma. The approach is based on a fully kinetic description of the plasma using particle in cell modeling for all plasma species with physical charges and masses. The model also relies on a discretization of space with an unstructured tetrahedral mesh that is capable of representing complex boundaries and realistic spacecraft geometries. The code solves for the self-consistent electric fields, given calculated volume charges and charge deposition on the various satellite components. The model is purely electrostatic, but it does account for the effects of a possible constant and uniform background magnetic field.