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  • investigation of non-isothermal electron effects on the dust acoustic waves in four components dusty plasma

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 923
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the time fractional modified kdv, the so-called tfmkdv equation is solved to study the nonlinear propagation of the dust acoustic (da) solitary waves in un-magnetized four components dusty plasma. this plasma consists of positively charged warm adiabatic dust, negatively charged cold dust, non-isothermal electrons and maxwellian ions. the tfmkdv equation is derived by using semi-inverse and agrawal’s method and solved by the laplace adomian decomposition method (ladm). the effects of the time fractional order (β), the ratio of dust to ion temperature (δ d ), the time (τ), the mass and charge ratio (α), the non-isothermal parameter (γ) and wave velocity (v) on the da solitary wave are studied. our results show that the variations of the amplitude of da solitary wave versus (γ) are in agreement with the results obtained previously. moreover, the time fractional order plays a role of higher order perturbation in modulating the soliton shape. the achievements of this research for the da solitary waves may be applicable in space plasma environments and laboratory plasmas.

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