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A time-implicit numerical method and benchmarks for the relativistic Vlasov–Ampere equations

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4938035· OSTI ID:1334790
 [1];  [2]
  1. Univ. of Nebraska-Lincoln, Lincoln, NE (United States); University of Nebraska - Lincoln
  2. Univ. of Nebraska-Lincoln, Lincoln, NE (United States)
Here, we present a time-implicit numerical method to solve the relativistic Vlasov–Ampere system of equations on a two dimensional phase space grid. The time-splitting algorithm we use allows the generalization of the work presented here to higher dimensions keeping the linear aspect of the resulting discrete set of equations. The implicit method is benchmarked against linear theory results for the relativistic Landau damping for which analytical expressions using the Maxwell-Juttner distribution function are derived. We note that, independently from the shape of the distribution function, the relativistic treatment features collective behaviors that do not exist in the non relativistic case. The numerical study of the relativistic two-stream instability completes the set of benchmarking tests.
Research Organization:
Univ. of Nebraska-Lincoln, Lincoln, NE (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
Grant/Contract Number:
FG02-08ER55000; SC0008382
OSTI ID:
1334790
Alternate ID(s):
OSTI ID: 1234172
OSTI ID: 22493802
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 1 Vol. 23; ISSN PHPAEN; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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