Direct discrete simulation of the kinetic Landau-Fokker-Planck equation with an alternating external electromagnetic field

Journal Article · Thu Oct 15 00:00:00 EDT 2015 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X15100050· OSTI ID:22472100

Karpov, S. A.

A stochastic method of simulation of Coulomb interaction is considered. The main idea of the method is to approximate the nonlinear Landau kinetic collision integral by the Boltzmann integral. In its realization, the method can be attributed to a wide class of Monte Carlo-type methods. It is easily combined with the existing particle methods used to simulate collisionless plasmas. This is important for simulation of the dynamics of both laboratory and space plasmas when the mean free path of plasma particles is comparable with the plasma inhomogeneity scale length. Illustrative examples of relaxation of two-temperature plasma being subject to a high-frequency alternating electric field are given, and differences from their classical description are considered. The method satisfies the conservation laws for the number of particles, momentum, and energy and is simple and efficient in implementation.

• OSTI ID: 22472100
• Journal Information: Plasma Physics Reports, Vol. 41, Issue 10; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
APPROXIMATIONS
COLLISION INTEGRALS
COLLISIONLESS PLASMA
COMPARATIVE EVALUATIONS
CONSERVATION LAWS
COULOMB FIELD
ELECTRIC FIELDS
ELECTROMAGNETIC FIELDS
FOKKER-PLANCK EQUATION
INHOMOGENEOUS PLASMA
MEAN FREE PATH
MONTE CARLO METHOD
NONLINEAR PROBLEMS
RELAXATION
STOCHASTIC PROCESSES