论文标题
压力 - 应变相互作用：ii。磁场对准坐标的分解
Pressure-Strain Interaction: II. Decomposition in Magnetic Field-Aligned Coordinates
论文作者
论文摘要
在弱碰撞和无碰撞磁化等离子体中，压力应变相互作用描述了散装流量和热能密度之间的转化率。在这项研究中，我们在与局部磁场对齐的轴线中的压力 - 应变相互作用中得出了一个分析表达。结果是八组术语，对应于不同的物理机制，这些机制可能有助于压力应变。我们提供每个学期的物理描述。弱碰撞和无碰撞的磁化等离子体以及其中发生的基本过程，包括磁重新连接，磁化等离子体湍流和无碰撞冲击的基本过程。通过卫星观测值，可能可以通过测量值来访问现场对齐的坐标分解中的术语。
In weakly collisional and collisionless magnetized plasmas, the pressure-strain interaction describes the rate of conversion between bulk flow and thermal energy density. In this study, we derive an analytical expression for the pressure-strain interaction in a coordinate system with an axis aligned with the local magnetic field. The result is eight groups of terms corresponding to different physical mechanisms that can contribute to the pressure-strain interaction. We provide a physical description of each term. The results are immediately of interest to weakly collisional and collisionless magnetized plasmas and the fundamental processes that happen therein, including magnetic reconnection, magnetized plasma turbulence, and collisionless shocks. The terms in the field-aligned coordinate decomposition are likely accessible to measurement with satellite observations.
