BLELLY, Mme Aurore (2018) Absorption of Charged Particles in Perfectly-Matched-Layers PFE - Project Graduation, ENSTA.



Perfectly-Matched Layers (PML) are widely used in Particle-In-Cell simulations of plasmas, in order to absorb electromagnetic waves that propagate out of the simulation domain. However, when charged particles cross the boundary between the simulation domain and the PMLs, a number of numerical artifacts can arise (including field reflections, and build up of residual static field at the boundary). We introduce a new PML algorithm that significantly mitigates these artifacts. The benefits of this algorithm is illustrated in simulations of laser-plasma acceleration, whereby a significant fraction of the plasma particles exit the simulation domain.

Item Type:Thesis (PFE - Project Graduation)
Uncontrolled Keywords:Charge accumulation
Subjects:Mathematics and Applications
Physics, Optics
ID Code:7537
Deposited By:Aurore BLELLY
Deposited On:14 mai 2021 14:19
Dernière modification:14 mai 2021 14:19

Repository Staff Only: item control page