On the applicability of the fluid approach to the description of nonlinear processes in magnetoactive plasmas

Autor:	S M Zinevych, A G Sitenko
Rok vydání:	1996
Předmět:	Physics Nonlinear system Classical mechanics Nuclear Energy and Engineering Scattering Mechanics Plasma Method of moments (statistics) Condensed Matter Physics Dispersion (water waves) Kinetic energy Electromagnetic radiation Magnetic field
Zdroj:	Plasma Physics and Controlled Fusion. 38:627-637
ISSN:	1361-6587 0741-3335
DOI:	10.1088/0741-3335/38/4/012
Popis:	The paper discusses the difference between kinetic and hydrodynamic descriptions of nonlinear wave scattering and transformation in plasmas with external magnetic fields. In particular, it gives a detailed study of electromagnetic wave scattering by fluctuations in a magnetoactive plasma. For the limiting case of cold plasmas, the results of the kinetic description are shown to reproduce the expressions obtained in the fluid approach. The applicability conditions of the fluid description are analysed. The method of moments is applied to solve the kinetic equation and is thus shown to be efficient in the study of nonlinearity and thermal dispersion of fluctuations responsible for the wave scattering. The quantitative description of thermal effects can be provided only in terms of the kinetic approach.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e19375a096d193246b01d62b93b3d640 https://doi.org/10.1088/0741-3335/38/4/012 Zobrazit plný text záznamu