A fully nonlinear solitary wave in six-component dusty cometary plasma

Bedeir, Ahmed M.; Abulwafa, Essam M.; Elhanbaly, A.; Mahmoud, Abeer A.

doi:10.1088/1402-4896/ac03e1

Cited by 8 publications

(5 citation statements)

References 36 publications

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“…In this work, heavy ions pair of Oxygen and the negative dust particles are considered to be inertial species. The governing normalized fluid equations [31] describing the plasma model are…”

Section: Basic Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Therefore, we aim here to extend the analysis of our previous work [31] to see whether the plasma model under consideration admits new types of nonlinear localized waves, such as double-layer and super-soliton. Our plasma model consists of Oxygen ion pair, negative dust particles, kappa distributed ions of Hydrogen, hot solar electrons and cold electrons of the comet tail [31]. The layout of this paper is organized as, the fluid equations describing our system in section II, then we drive an energy equation and introducing the pseudopotential in section III, in section IV we discuss the analysis of the double-layers and super-solitons then finally conclusions can be found in section V, where we summarize the discussed ideas and results.…”

Section: Introductionmentioning

confidence: 99%

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Formation of double-layers and super-solitons in a six-component cometary dusty plasma

et al. 2022

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The formation and main features of the fully nonlinear structure in a six-component dusty plasma system have been investigated using Sagdeev potential approach. By means of pseudo-potential technique, the fluid equations describing the plasma system were diminished into a single nonlinear differential equation, called energy equation modified by presenting the parameters of addition plasma components. For certain values of the configurationally plasma parameters, our findings show that in addition to the solitary waves, double-layers and super-solitons exist and propagate in this plasma system. The main features of these waves have been studied by investigating the associated phase-portrait trajectories and potential curves as well and are found to be very sensitive to the variation of these parameters. The obtained results are mainly relevant to the cometary plasma and it may also provide better and helpful understanding of the nonlinear nature of space, astrophysical and cometary plasmas. Graphical abstract The formation and main features of the fully nonlinear structure in a six-component dusty plasma system have been investigated using Sagdeev potential approach. By means of pseudo-potential technique, the fluid equations describing the plasma system were diminished into a single nonlinear differential equation, called energy equation modified by presenting the parameters of addition plasma components. For certain values of the configurationally plasma parameters, our findings show that in addition to the solitary waves, double-layers and super-solitons exist and propagate in this plasma system. The main features of these waves have been studied by investigating the associated phase-portrait trajectories and potential curves as well and are found to be very sensitive to the variation of these parameters.

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Section: Basic Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Formation of double-layers and super-solitons in a six-component cometary dusty plasma

et al. 2022

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“…The short-wavelength and long-wavelength ion-acoustic wave speeds V T 1,2 and V S 1,2 are given in Eqs. (19) and (20), respectively. The Roman numerals "I" and "II" denote the dispersion curves of the linear slow and fast ion-acoustic modes, respectively.…”

Section: Ion Flux In a Nonlinear Ion-acoustic Wave In A Two-component...mentioning

confidence: 99%

“…III A. Namely, there will also be two dispersion curves corresponding to the fast and slow ion-acoustic wave modes, whose characteristic speeds can be found by Eq. (20). For the nonlinear analysis, the application of the methodology described in Secs.…”

Section: Ion Fluxes and Separation In Super-nonlinear Ion-acoustic Wa...mentioning

confidence: 99%

The separation of ions and fluxes in nonlinear ion-acoustic waves

Dubinov,

Kitayev,

Kolotkov

2021

Preprint

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The multi-species plasma of natural or laboratory origin is often considered to host nonlinear ion-acoustic waves. We present calculations of ion fluxes induced by nonlinear ion-acoustic waves in a plasma consisting of multiple ion populations, electrons, and dust. The following plasma models are considered: an electron-ion plasma with cold ions, a bi-ion plasma with two types of warm positively charged ions, and a dusty bi-ion plasma. It is found that in the electron-ion plasma, the wave-induced ion flux is directed oppositely to the phase speed of the nonlinear ion-acoustic wave. In the bi-ion plasma, there are two modes of ion-acoustic waves which are fast and slow waves. In the nonlinear fast ion-acoustic wave, the fluxes of both types of ions are found to be co-directed and drift against the wave. In a slow wave, the nonlinear fluxes of ions are directed in opposite directions. This result demonstrates the possibility to use these nonlinear wave-induced ion fluxes for effective separation of ions in the plasma. In a dusty bi-ion plasma, the ion separation process can be intensified by a super-nonlinear regime of slow ion-acoustic waves.

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