PPPL-3826 is available in pdf format (772 KB).
Improved Conservation Properties for Particle-in-cell Simulations with Kinetic Electrons
Author: J.L.V. Lewandowski
Date of PPPL Report: June 2003
It is shown that a simple algorithm which exactly segregates between adiabatic and non-adiabatic electrons in particle-in-cell simulations of drift modes yields excellent conservation properties (e.g. particle number, energy) compared to the conventional delta-f scheme. The removal of the free streaming term in the evolution of the marker weight is shown to be responsible for the improved linear and nonlinear properties of the simulated plasma.