Implicit moment particle simulation of plasmas

Journal Article · Mon Jun 01 04:00:00 EDT 1981 · J. Comput. Phys.; (United States)

DOI:https://doi.org/10.1016/0021-9991(81)90094-2· OSTI ID:6245125

Mason, R J

It is shown that an implicit E field can be obtained from Poisson's equation with the aid of the lower two fluid moment equations, permitting stable particle simulations for ..omega../sub p/..delta..t>>1 and ..delta..x/lambda/sub D/>>1, where ..omega../sub p/ and lambda/sub D/ are the plasma frequency and Debye length, respectively. In the quasi-neutral limit the effect of this E is to provide just the predicted current required to drive all present deviations in the total charge density to zero in the next cycle. In near vacuum, or with ..omega../sub p/..delta..t>>1, the field expression reduces to the standard form used with conventional leapfrog schemes. Sample applications are discussed.

• Research Organization: Los Alamos Scientific Laboratory, University of California, Los Alamos, New Mexico 87545
• OSTI ID: 6245125
• Journal Information: J. Comput. Phys.; (United States), Journal Name: J. Comput. Phys.; (United States) Vol. 41:1; ISSN JCTPA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
COLLISIONLESS PLASMA
DEBYE LENGTH
DIFFERENTIAL EQUATIONS
DIMENSIONS
ELECTRIC FIELDS
ELECTRON TEMPERATURE
ELECTRONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
INSTABILITY
LENGTH
LEPTONS
ONE-DIMENSIONAL CALCULATIONS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
PLASMA INSTABILITY
PLASMA SIMULATION
POISSON EQUATION
SIMULATION