论文标题
欧拉（Eulerian
Eulerian simulations of electrostatic waves in plasmas with a single sign of charge
论文作者
论文摘要
欧拉（Eulerian）的数值模拟用于建模在限制在纸质 - 麦伯格陷阱中的非中性等离子体中的等离子体波的发射。通过将振荡电势施加到电导缸的一端，该扇形在限制限制区域的一端，并被另一个电气隔离的部门接收到圆柱体的另一端。研究了trivelpiece-gould波和电子声波的发射。采用策略，模拟捕获了有限长度等离子体的基本特征，同时保留了使用周期性空间边界条件的模拟的数值优势。作为模拟的基准测试，与这些波动的线性化分析溶液相比，成功地将发射的小振幅螺旋形 - 螺旋形波的结果成功。
An Eulerian, numerical simulation is used to model the launching of plasma waves in a non-neutral plasma that is confined in a Penning-Malmberg trap. The waves are launched by applying an oscillating potential to an electrically isolated sector at one end of the conducting cylinder that bounds the confinement region and are received by another electrically isolated sector at the other end of the cylinder. The launching of both Trivelpiece-Gould waves and electron acoustic waves is investigated. Adopting a stratagem, the simulation captures essential features of the finite length plasma, while retaining the numerical advantages of a simulation employing periodic spatial boundary conditions. As a benchmark test of the simulation, the results for launched Trivelpiece-Gould waves of small amplitude are successfully compared to a linearized analytic solution for these fluctuations.
