论文标题
通过最佳阻尼沉积电流吸收带电颗粒在完美匹配的层中的吸收
Absorption of charged particles in Perfectly-Matched-Layers by optimal damping of the deposited current
论文作者
论文摘要
完美匹配的层（PML）广泛用于粒子中的模拟中，以吸收从模拟域传播的电磁波。但是，当带电的粒子越过模拟域和PML之间的界面时，可能会出现许多数值伪像。为了减轻这些人工制品，我们引入了一种新的PML算法，通过该算法，宏粒子沉积在PML中的电流受到分析衍生的最佳系数的阻尼。实际模拟中说明了这种新算法的好处。
Perfectly-Matched Layers (PML) are widely used in Particle-In-Cell simulations, in order to absorb electromagnetic waves that propagate out of the simulation domain. However, when charged particles cross the interface between the simulation domain and the PMLs, a number of numerical artifacts can arise. In order to mitigate these artifacts, we introduce a new PML algorithm whereby the current deposited by the macroparticles in the PML is damped by an analytically-derived, optimal coefficient. The benefits of this new algorithm is illustrated in practical simulations.
