Computing Division Cross-Disciplinary Seminars (2025)

Session

Numerical Methods

25 Mar 2025, 15:00

Culham/Remote

Conveners

Numerical Methods: Energy-preserving coupling of explicit particle-in-cell with Monte Carlo collisions

• Aravinda Perera (Plasma Simulation)

1. Energy-preserving coupling of explicit particle-in-cell with Monte Carlo collisions

Dr Jean-Luc Vay (LBNL)

25/03/2025, 15:00

Abstract
The particle-in-cell (PIC) and Monte Carlo collisions (MCC) methods are workhorses of many numerical simulations of physical systems. Recently, it was pointed out that, while the two methods can be exactly—or nearly—energy-conserving independently, combining the two leads to anomalous numerical heating. This paper reviews the standard explicit PIC-MCC algorithm, elucidates the...