Modulational instability of three dimensional waves in a plasma with vortex electron distribution

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Tarih

2019-02-10

Dergi Başlığı

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Yayıncı

Işık University Press

Erişim Hakkı

info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivs 3.0 United States

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Organizasyon Birimleri

Dergi sayısı

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.