Abstract
This paper presents fully kinetic numerical investigations of the charging of spherical and irregular shaped dust grains in multiple configurations utilizing the Parallel Immersed-Finite-Element Particle-in-Cell Dusty (PIFE-PIC-D) framework. The simulations account for both surface charging and in-depth charging of the dust grains immersed in various ambient plasma conditions near a floating or biased surface. PIFE-PIC-D explicitly resolves the geometrical and material properties (permittivity and photoelectron emissions) of each individual dust grain. PIFE-PIC-D will model self-consistently the unsteady and stochastic charging of grains directly from the deposition of electrons and ions onto them. PIFE-PIC-D will also simulate the charging of irregular-shaped grains modeled by simple analytic shapes (overlapping of spheres). Finally, the charging over time of each dust grain will be investigated.
Recommended Citation
D. Lund and D. Han, "Kinetic Simulations of Dust Grain Charging Near Surfaces under Various Plasma Conditions," AIAA SciTech Forum and Exposition, 2024, American Institute of Aeronautics and Astronautics, Jan 2024.
The definitive version is available at https://doi.org/10.2514/6.2024-2696
Department(s)
Mechanical and Aerospace Engineering
Publication Status
Full Access
International Standard Book Number (ISBN)
978-162410711-5
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Institute of Aeronautics and Astronautics, All rights reserved.
Publication Date
01 Jan 2024
Comments
National Aeronautics and Space Administration, Grant DMS-2111039