CHAOS: An octree-based PIC-DSMC code for modeling of electron kinetic properties in a plasma plume using MPI-CUDA parallelization

•Linearized Morton Z-ordered forest of octrees with 2:1 criterion are implemented to discretize the domain for PIC.•The Poisson's equation is discretized and solved the preconditioned conjugate gradient method using multiple CPUs and GPUs.•Particle-to-octree mapping and face-neighbor computatio...

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Vydané v:	Journal of computational physics Ročník 373; s. 571 - 604
Hlavní autori:	Jambunathan, Revathi, Levin, Deborah A.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Cambridge Elsevier Inc 15.11.2018 Elsevier Science Ltd
Predmet:	Computational physics Conjugate gradient method Debye length Direct simulation Monte Carlo method Distribution functions Electric propulsion Electron energy Electron kinetics Electron velocity distribution Electrons Forest of Morton-Z ordered linear octrees Grid method Heterogeneous architectures Ion beams Kinetics Mathematical analysis Neutralization of plasma plume Octrees Parallel processing Partial differential equations Particle-In-Cell Plasma physics Plumes Poisson distribution Poisson equation Protons Xenon Particle-In-Cell Heterogeneous architectures Neutralization of plasma plume Forest of Morton-Z ordered linear octrees Electron kinetics
ISSN:	0021-9991, 1090-2716
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