A Nonhomogeneous Immersed-Finite-Element Particle-in-Cell Method for Modeling Dielectric Surface Charging in Plasmas
We present a particle-in-cell (PIC) method using a nonhomogeneous immersed-finite-element (IFE) field solver for modeling dielectric surface charging of complex-shaped objects in plasmas. The IFE solver allows PIC codes using a Cartesian mesh applied to simulations involving arbitrarily shaped objects with a similar accuracy as that using a body-fitting mesh. The object surface is treated as an interface. Surface charging is calculated directly from charge deposition at the interface, and the electrostatic fields on both sides of the interface are resolved self-consistently. The capability of the nonhomogeneous IFE-PIC method is demonstrated by a simulation study of the charging of an irregular-shaped asteroid in the solar wind.
D. F. Han et al., "A Nonhomogeneous Immersed-Finite-Element Particle-in-Cell Method for Modeling Dielectric Surface Charging in Plasmas," IEEE Transactions on Plasma Science, vol. 44, no. 8, pp. 1326-1332, Institute of Electrical and Electronics Engineers (IEEE), Jul 2016.
The definitive version is available at https://doi.org/10.1109/TPS.2016.2580698
Mathematics and Statistics
Mechanical and Aerospace Engineering
Center for High Performance Computing Research
Keywords and Phrases
Dielectric Materials; inhomogeneous Media; mesh Generation; plasma Simulation; surface Discharges; Cartesian Mesh; body-Fitting Mesh; complex-Shaped Objects; dielectric Surface Charging Modeling; electrostatic Fields; irregular-Shaped Asteroid Charging; nonhomogeneous IFE-PIC Method; nonhomogeneous Immersed-Finite-Element Particle-In-Cell Method; plasma Simulations; solar Wind; Dielectrics; Electric Potential; Mathematical Model; Plasmas; Poisson Equations; Surface Charging; Surface Treatment; Dielectric Materials; finite-Element Methods; surface Charging
International Standard Serial Number (ISSN)
Article - Journal
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