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

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.
Authors:
;  [1]
  1. Dukhov All-Russia Research Institute of Automatics (Russian Federation)
Publication Date:
OSTI Identifier:
22472100
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 41; Journal Issue: 10; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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