Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10139599 | Journal of Computational Physics | 2018 | 30 Pages |
Abstract
An Eulerian phase-space discretized Vlasov-Poisson simulation code that incorporates filamentation filtration is introduced. The code is based on the flux-balance method, which is extended to include the filtration. A novel method for removing a localized numerical instability at the velocity boundaries is introduced and it is shown that the code is otherwise stable for a limited but effective range of filamentation filter widths. It is demonstrated that filamentation filtration does not remove the recurrence problem; recurrence does arise in the absence of filamentation. Simulations of one-dimensional, electrostatic Landau damping, and two-stream instability are presented. For these simulations, favorable comparisons with the results of a well-established Fourier-Fourier transformed spectral code are discussed.
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Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Adolfo. F. ViƱas, Alexander J. Klimas,