Modulational instability of three dimensional waves in a plasma with vortex electron distribution
Yükleniyor...
Dosyalar
Tarih
2019-02-10
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Işık University Press
Erişim Hakkı
info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivs 3.0 United States
Attribution-NonCommercial-NoDerivs 3.0 United States
Özet
In the present work, employing the three dimensional equations of a plasma composed of a cold electron fluid, hot electrons obeying a trapped / vortex-like distribution, and stationary ions, we study the amplitude modulation of an electron-acoustic waves by use of the conventional reductive perturbation method. Employing the field equations with fractional power type of nonlinearity, we obtained the three dimensional form of the modified nonlinear Schrodinger equation as the evolution equation of the same order of nonlinearity. The modulational instability of the homogeneous harmonic solution is investigated and the criteria for the instability is discussed as a function of the obliqueness angle. The numerical calculations show that the critical value of the wave number of the envelop wave increases with the wave number k of the carrier wave and the obliqueness angle gamma.
Açıklama
Anahtar Kelimeler
Modified nonlinear Schrodinger equation, Modulational instability, Solitary waves, Acoustic solitary waves, Nonlinear-waves, Propagation
Kaynak
TWMS Journal Of Applied And Engineering Mathematics
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
9
Sayı
3
Künye
Demiray, H. (2019). modulational instability of three dimensional waves in a plasma with vortex electron distribution. TWMS Journal of Applied and Engineering Mathematics, 9(3), 433-424.