Open AccessNONLINEAR EVOLUTION AND LOCAL STRUCTURE FORMATION OF ELECTROSTATIC WAVES IN MAGNETIC PLASMAS
Author(s) -
Wei Yang,
Yinhua Chen,
Jixing Liu
Publication year - 1997
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.46.87
Subject(s) - nonlinear system , vortex , physics , plasma , coupling (piping) , classical mechanics , computer simulation , magnetic field , mechanics , quantum electrodynamics , quantum mechanics , materials science , metallurgy
In this paper,the nonlinear drift waves described by the Hasegawa-Mima equation have been investigated by means of analytic researches and numerical simulations.The numerical results have been shown by figures.The initial disturbances of electrostatic waves,by the nonlinear mode-coupling,will evolve into a chain of vortices,these vortices gobble up each other and some large stable vortices are formed at the final stage of the nonlinear evolution.