AI 中文总结
该研究推导了线性等离子体装置漂移动理学模拟的鞘边界条件，基于 gyro-moment 方法实现其数值化，对比临时边界条件发现新条件可显著提升等离子体壁流出量、降低装置内等离子体密度。
AI 中文摘要
推导了磁场垂直于壁面入射的碰撞预鞘入口处漂移动理学模型的边界条件，并对其进行数值实现。该等离子体漂移动理学模型基于离子分布函数在 Hermite-Laguerre 基上的展开，以及由此产生的 gyro-moment 的演化，研究中考虑了线性等离子体装置的几何结构。将其与采用先前临时边界条件的简化模拟进行对比，结果显示新边界条件下等离子体向壁面的流出显著增加，导致装置整个体积内的等离子体密度明显降低。
英文摘要
Boundary conditions for a drift-kinetic model at the collisional presheath entrance with perpendicular incidence of the magnetic field to the wall are derived and numerically implemented. The drift-kinetic model for the plasma is based on the expansion of the ion distribution function on a Hermite-Laguerre basis, and the evolution of the resulting gyromoments. A linear-plasma-device geometry is considered. Comparison with simpler simulations with previously used ad hoc boundary conditions is presented. For the new set of boundary conditions, a significant increase of the plasma outflow to the wall is observed, leading to a significantly smaller plasma density in the whole volume of the device.
Comments24 pages, 5 figures
