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Title: A Study on Particle Trajectory Error in Finite-Element Particle-in-Cell Algorithms

Journal Article · · IEEE Transactions on Plasma Science

Particle-in-cell (PIC) algorithms are widely used for the simulation of kinetic plasmas. PIC algorithms account for the interaction between charged particles in a plasma and the electromagnetic field in ambient space, including self-field interactions. The objective of this article is to study the error in charged particle trajectories present in finite-element (FE)-based PIC algorithms on unstructured meshes. We study how the trajectory error behaves according to the FE mesh resolution and the matrix solver employed in the FE algorithm. The study is performed by considering a trajectory established by a parabolic electric potential and an axial magnetic force acting on the charged particle. Under a proper choice combination of electric and magnetic field parameters, the 2-D particle trajectories comprise closed orbits. Numerical errors cause small perturbations on the trajectories, with cumulative effects. As a result, the resulting orbital trajectories exhibit distortions including spurious apsidal precession. These distortions provide a clear imprint of the numerical error. Here, we also study the numerical error in a quantitative fashion by computing the distance norm between the trajectories obtained by the exact fields and numerical fields.

Research Organization:
The Ohio State University, Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0022982
OSTI ID:
2349429
Journal Information:
IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 4 Vol. 52; ISSN 0093-3813
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

References (32)

Whitney forms and their extensions journal September 2021
Electromagnetic particle-in-cell simulations on magnetic reconnection with adaptive mesh refinement journal June 2008
Exact charge-conserving scatter–gather algorithm for particle-in-cell simulations on unstructured grids: A geometric perspective journal September 2015
Constructing exact sequences on non-conforming discrete spaces journal May 2016
A 3D immersed finite element method with non-homogeneous interface flux jump for applications in particle-in-cell simulations of plasma–lunar surface interactions journal September 2016
Axisymmetric charge-conservative electromagnetic particle simulation algorithm on unstructured grids: Application to microwave vacuum electronic devices journal October 2017
Diagnosing numerical Cherenkov instabilities in relativistic plasma simulations based on general meshes journal February 2020
A semi-implicit electromagnetic FEM-PIC scheme with exact energy and charge conservation journal March 2022
An arbitrary order time-stepping algorithm for tracking particles in inhomogeneous magnetic fields journal September 2019
Finite element exterior calculus, homological techniques, and applications journal May 2006
Electromagnetic PIC simulations with smooth particles: a numerical study journal March 2016
Accurate Modeling of Laser-Plasma Accelerators with Particle-In-Cell Codes conference January 2006
Lattice electromagnetic theory from a topological viewpoint journal January 1999
Time integrator agnostic charge conserving finite element PIC journal September 2021
Particle simulation of plasmas: review and advances journal April 2005
Verification of particle-in-cell simulations with Monte Carlo collisions journal September 2016
Evaluating the accuracy of hybrid finite element/particle-in-cell methods for modelling incompressible Stokes flow journal September 2019
Motion of a Time-Dependent Harmonic Oscillator, and of a Charged Particle in a Class of Time-Dependent, Axially Symmetric Electromagnetic Fields journal August 1968
Unphysical kinetic effects in particle-in-cell modeling of laser wakefield accelerators journal July 2008
Some realizations of a discrete Hodge operator: a reinterpretation of finite element techniques [for EM field analysis] journal May 1999
Particle in Cell Finite Element Validation and Verification Methods conference July 2020
Polynomial Finite-Size Shape Functions for Electromagnetic Particle-in-Cell Algorithms Based on Unstructured Meshes journal January 2019
Analysis of a particle-in-cell code based on a time-adaptive mesh conference January 2007
Parallel and Explicit Finite-Element Time-Domain Method for Maxwell's Equations journal June 2011
Conformal Electromagnetic Particle in Cell: A Review journal November 2015
A Nonhomogeneous Immersed-Finite-Element Particle-in-Cell Method for Modeling Dielectric Surface Charging in Plasmas journal August 2016
Local, Explicit, and Charge-Conserving Electromagnetic Particle-In-Cell Algorithm on Unstructured Grids journal August 2016
A Set of Benchmark Tests for Validation of 3-D Particle in Cell Methods journal May 2021
A Necessarily Incomplete Review of Electromagnetic Finite Element Particle-in-Cell Methods journal July 2023
A Particle-in-cell Method with Adaptive Phase-space Remapping for Kinetic Plasmas journal January 2011
Plasma Physics via Computer Simulation book January 1991
Two-dimensional motion of a parabolically confined charged particle in a perpendicular magnetic field journal February 2013