Interactions of nonlinear electron-acoustic solitary waves with vortex electron distribution
Yükleniyor...
Dosyalar
Tarih
2015-02-01
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Institute of Physics Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the present work, based on a one dimensional model, we consider the head-on-collision of nonlinear electron-acoustic waves in a plasma composed of a cold electron fluid, hot electrons obeying a trapped/vortex-like distribution, and stationary ions. The analysis is based on the use of extended Poincare, Lighthill-Kuo method [C. H. Su and R. M. Mirie, J. Fluid Mech. 98, 509 (1980); R. M. Mirie and C. H. Su, J. Fluid Mech. 115, 475 (1982)]. It is shown that, for the first order approximation, the waves propagating in opposite directions are characterized by modified Korteweg-de Vries equations. In contrary to the results of previous investigations on this subject, we showed that the phase shifts are functions of both amplitudes of the colliding waves. The numerical results indicate that the waves with larger amplitude experience smaller phase shifts. Such a result seems to be plausible from physical considerations.
Açıklama
Anahtar Kelimeler
Head-on Collision, Plasma, Propagation, Solitons, Equation, Korteweg-de Vries equation, Solitons, Water waves, Acoustics, Hot electrons, Nonlinear equations, Phase shift, Trapped ions, Electron acoustic solitary waves, Electron acoustic waves, Electron distributions, First-order approximations, Modified korteweg-de vries equations, Numerical results, One-dimensional model, Electrons
Kaynak
Physics Of Plasmas
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
22
Sayı
2
Künye
Demiray, H. (2015). Interactions of nonlinear electron-acoustic solitary waves with vortex electron distribution. Physics of Plasmas, 22(2), 1-7. doi:10.1063/1.4907790
