6 papers · 1 filter
Benchmark for two-dimensional large scale coherent structures in partially magnetized ExB plasmas -- Community collaboration & lessons learned
Andrew T. Powis, Eduardo Ahedo, Alejandro Ãlvarez Laguna +38
Low-temperature plasmas are essential to both fundamental scientific research and critical industrial applications. As in many areas of science, numerical simulations have become a…
Accelerating kinetic plasma simulations with machine learning generated initial conditions
Andrew T. Powis, Domenica Corona Rivera, Alexander Khrabry +1
Computer aided engineering of multi-time-scale plasma systems which exhibit a quasi-steady state solution are challenging due to the large number of time steps required to reach co…
Three-dimensional Helical-rotating Plasma Structures in Beam-generated Partially Magnetized Plasmas
Jian Chen, Andrew T. Powis, Igor D. Kaganovich +1
Azimuthal structures emerging in beam-generated partially magnetized plasmas are investigated using three-dimensional particle-in-cell/Monte Carlo collision simulations. Two distin…
Sheath electron heating in surface wave discharges driven at microwave frequencies
Denis Eremin, Andrew T. Powis, Igor D. Kaganovich
Using fully electromagnetic particle-in-cell/Monte Carlo simulations, the electron heating due to interaction with a moving sheath is demonstrated to dominate in surface wave-drive…
Investigating Instabilities in Magnetized Low-pressure Capacitively-Coupled RF Plasma using Particle-in-Cell (PIC) Simulations
Sathya Ganta, Kallol Bera, Shahid Rauf +5
The effect of a uniform magnetic field on particle transport in low-pressure radio frequency (RF) capacitively coupled plasma (CCP) has been studied using a particle-in-cell (PIC)…
Establishing Criteria for the Transition from Kinetic to Fluid Modeling in Hollow Cathode Analysis
Willca Villafana, Andrew T. Powis, Sarveshwar Sharma +2
In this study, we conduct 2D3V Particle-In-Cell simulations of hollow cathodes, encompassing both the channel and plume region, with an emphasis on plasma switch applications. The…