Effect of Nonthermal Electrons and Ions on Longitudinal Dust Acoustic Solitary Waves in a Strongly Coupled Dusty Plasma

Yashika Ghai; N. S. Saini; Manpreet Singh

doi:10.1109/TPS.2017.2755865

Effect of Nonthermal Electrons and Ions on Longitudinal Dust Acoustic Solitary Waves in a Strongly Coupled Dusty Plasma

Yashika Ghai, N. S. Saini, Manpreet Singh

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The propagation properties of longitudinal dust acoustic waves (LDAWs) have been investigated in a strongly coupled dusty plasma containing negatively charged dust fluid, and nonthermal electrons and ions using the generalized hydrodynamic model in 'kinetic regime.' The nonlinear dynamics of the system are shown to be governed by a modified KdV equation in the presence of viscoelastic forces. The modified KdV equation so obtained is found to possess a nonlinear force term and a linear damping term. The effects of various physical parameters on the phase velocity and coefficients of modified KdV equation have been analyzed. Furthermore, the effect of nonthermality of electrons and ions is realized in the numerical solution of the equation so obtained to study the time evolution of LDAWs under the influence of dust correlation forces.

Original language	English
Pages (from-to)	825-831
Number of pages	7
Journal	IEEE Transactions on Plasma Science
Volume	46
Issue number	4
DOIs	https://doi.org/10.1109/TPS.2017.2755865
State	Published - Apr 2018
Externally published	Yes

Funding

Y. Ghai acknowledges University Grants Commission for providing fellowship under Basic Scientific Research Scheme. M. Singh acknowledges the support provided by the Department of Science and Technology, Govt. of India, New Delhi, for 8th ICPDP. Manuscript received June 30, 2017; revised September 14, 2017; accepted September 14, 2017. Date of publication October 3, 2017; date of current version April 10, 2018. This work was supported by DRS-II (SAP) under Grant F530/17/DRS-II/2015 (SAP-I) UGC, New Delhi. The review of this paper was arranged by Senior Editor T. Hyde. (Corresponding author: Manpreet Singh.) The authors are with the Department of Physics, Guru Nanak Dev University, Amritsar 143005, India (e-mail: [email protected]; [email protected]; [email protected]).

Funders	Funder number
Basic Scientific Research Scheme
University Grants Commission
Department of Science and Technology, Government of Kerala

Keywords

Dusty plasma
generalized hydrodynamic (GH)
nonthermal
strongly coupled
viscoelastic

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title = "Effect of Nonthermal Electrons and Ions on Longitudinal Dust Acoustic Solitary Waves in a Strongly Coupled Dusty Plasma",

abstract = "The propagation properties of longitudinal dust acoustic waves (LDAWs) have been investigated in a strongly coupled dusty plasma containing negatively charged dust fluid, and nonthermal electrons and ions using the generalized hydrodynamic model in 'kinetic regime.' The nonlinear dynamics of the system are shown to be governed by a modified KdV equation in the presence of viscoelastic forces. The modified KdV equation so obtained is found to possess a nonlinear force term and a linear damping term. The effects of various physical parameters on the phase velocity and coefficients of modified KdV equation have been analyzed. Furthermore, the effect of nonthermality of electrons and ions is realized in the numerical solution of the equation so obtained to study the time evolution of LDAWs under the influence of dust correlation forces.",

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author = "Yashika Ghai and Saini, {N. S.} and Manpreet Singh",

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T1 - Effect of Nonthermal Electrons and Ions on Longitudinal Dust Acoustic Solitary Waves in a Strongly Coupled Dusty Plasma

AU - Ghai, Yashika

AU - Saini, N. S.

AU - Singh, Manpreet

PY - 2018/4

Y1 - 2018/4

N2 - The propagation properties of longitudinal dust acoustic waves (LDAWs) have been investigated in a strongly coupled dusty plasma containing negatively charged dust fluid, and nonthermal electrons and ions using the generalized hydrodynamic model in 'kinetic regime.' The nonlinear dynamics of the system are shown to be governed by a modified KdV equation in the presence of viscoelastic forces. The modified KdV equation so obtained is found to possess a nonlinear force term and a linear damping term. The effects of various physical parameters on the phase velocity and coefficients of modified KdV equation have been analyzed. Furthermore, the effect of nonthermality of electrons and ions is realized in the numerical solution of the equation so obtained to study the time evolution of LDAWs under the influence of dust correlation forces.

AB - The propagation properties of longitudinal dust acoustic waves (LDAWs) have been investigated in a strongly coupled dusty plasma containing negatively charged dust fluid, and nonthermal electrons and ions using the generalized hydrodynamic model in 'kinetic regime.' The nonlinear dynamics of the system are shown to be governed by a modified KdV equation in the presence of viscoelastic forces. The modified KdV equation so obtained is found to possess a nonlinear force term and a linear damping term. The effects of various physical parameters on the phase velocity and coefficients of modified KdV equation have been analyzed. Furthermore, the effect of nonthermality of electrons and ions is realized in the numerical solution of the equation so obtained to study the time evolution of LDAWs under the influence of dust correlation forces.

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KW - generalized hydrodynamic (GH)

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KW - strongly coupled

KW - viscoelastic

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JF - IEEE Transactions on Plasma Science

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ER -

Effect of Nonthermal Electrons and Ions on Longitudinal Dust Acoustic Solitary Waves in a Strongly Coupled Dusty Plasma

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