Adaptive particle management in a particle-in-cell code

Welch, D. R.; Genoni, T. C.; Clark, R. E.; Rose, D. V.

doi:10.1016/j.jcp.2007.07.015

Adaptive particle management in a particle-in-cell code

Journal Article · Fri Aug 03 00:00:00 EDT 2007 · Journal of Computational Physics

DOI:https://doi.org/10.1016/j.jcp.2007.07.015· OSTI ID:1426962

Welch, D. R. ^[1]; Genoni, T. C. ^[1]; Clark, R. E. ^[1]; Rose, D. V. ^[1]

Voss Scientific, LLC, Albuquerque, NM (United States)

In particle-based plasma simulation, when dealing with source terms such as ionization, emission from boundaries, etc., the total number of particles can grow, at times, exponentially. Additionally, problems involving the spatial expansion of dynamic plasmas can result in statistical under representation of particle distributions in critical regions. Furthermore, when considering code optimization for massively parallel operation, it is useful to maintain a uniform number of particles per cell. Accordingly, we have developed an algorithm for coalescing or fissioning particles on 2D and 3D orthogonal grids that is based on a method of Assous et al. [F. Assous, T. Pougeard Dulimbert, J. Segre, J. Comput. Phys. 187 (2003) 550]. Here, we present the algorithm and describe in detail its application to particle-in-cell simulations of gas ionization/streamer formation and dynamic, expanding plasmas.

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000

OSTI ID:: 1426962

Report Number(s):: SAND--2007-1344J; 526770

Journal Information:: Journal of Computational Physics, Journal Name: Journal of Computational Physics Journal Issue: 1 Vol. 227; ISSN 0021-9991

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Plasma non-uniformity in a symmetric radiofrequency capacitively-coupled reactor with dielectric side-wall: a two dimensional particle-in-cell/Monte Carlo collision simulation Liu, Yue; Booth, Jean-Paul; Chabert, Pascal Plasma Sources Science and Technology, Vol. 27, Issue 2 https://doi.org/10.1088/1361-6595/aaa86e	journal	February 2018
Current transport and loss mechanisms in the Z accelerator Bennett, N.; Welch, D. R.; Jennings, C. A. Physical Review Accelerators and Beams, Vol. 22, Issue 12 https://doi.org/10.1103/physrevaccelbeams.22.120401	journal	December 2019

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY
97 MATHEMATICS AND COMPUTING
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Adaptive particle management in a particle-in-cell code

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