Existence regimes for the formation of nonlinear dissipative structures in inhomogeneous magnetoplasmas with nonMaxwellian electrons
Abstract
Nonlinear dissipative structures are studied in one and two dimensions in nonuniform magnetized plasmas with nonMaxwellian electrons. The dissipation is incorporated in the system through ionneutral collisions. Employing the drift approximation, nonlinear drift waves are derived in 1D, whereas coupled driftion acoustic waves are derived in 2D in the weak nonlinearity limit. It is found that the ratio of the diamagnetic drift velocity to the velocity of nonlinear structure determines the nature (compressive or rarefactive) of the shock structure. The upper and lower bounds for velocity of the nonlinear shock structures are also found. It is noticed that the existence regimes for the drift shock waves in one and two dimensions for Cairns distributed electrons are very distinct from those with kappa distributed electrons. Interestingly, it is found that both compressive and rarefactive shock structures could be obtained for the one dimensional drift waves with kappa distributed electrons.
 Authors:
 COMSATS Institute of Information Technology, Park Road, Chak Shahzad, Islamabad (Pakistan)
 (Pakistan)
 Theoretical Plasma Physics Group, Department of Physics, QuaidiAzam University, Islamabad 45320 (Pakistan)
 National Centre for Physics, Shahdara Valley Road, Islamabad (Pakistan)
 Publication Date:
 OSTI Identifier:
 22599863
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 9; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; APPROXIMATIONS; COLLISIONS; ELECTRONS; ION ACOUSTIC WAVES; ION DRIFT; NONLINEAR PROBLEMS; ONEDIMENSIONAL CALCULATIONS; PLASMA; SHOCK WAVES; TWODIMENSIONAL CALCULATIONS; VELOCITY; WAVE PROPAGATION
Citation Formats
Masood, W., National Centre for Physics, Shahdara Valley Road, Islamabad, Zahoor, Sara, GuleAli, and Ahmad, Ali, Email: aliahmad79@hotmail.com. Existence regimes for the formation of nonlinear dissipative structures in inhomogeneous magnetoplasmas with nonMaxwellian electrons. United States: N. p., 2016.
Web. doi:10.1063/1.4961921.
Masood, W., National Centre for Physics, Shahdara Valley Road, Islamabad, Zahoor, Sara, GuleAli, & Ahmad, Ali, Email: aliahmad79@hotmail.com. Existence regimes for the formation of nonlinear dissipative structures in inhomogeneous magnetoplasmas with nonMaxwellian electrons. United States. doi:10.1063/1.4961921.
Masood, W., National Centre for Physics, Shahdara Valley Road, Islamabad, Zahoor, Sara, GuleAli, and Ahmad, Ali, Email: aliahmad79@hotmail.com. 2016.
"Existence regimes for the formation of nonlinear dissipative structures in inhomogeneous magnetoplasmas with nonMaxwellian electrons". United States.
doi:10.1063/1.4961921.
@article{osti_22599863,
title = {Existence regimes for the formation of nonlinear dissipative structures in inhomogeneous magnetoplasmas with nonMaxwellian electrons},
author = {Masood, W. and National Centre for Physics, Shahdara Valley Road, Islamabad and Zahoor, Sara and GuleAli and Ahmad, Ali, Email: aliahmad79@hotmail.com},
abstractNote = {Nonlinear dissipative structures are studied in one and two dimensions in nonuniform magnetized plasmas with nonMaxwellian electrons. The dissipation is incorporated in the system through ionneutral collisions. Employing the drift approximation, nonlinear drift waves are derived in 1D, whereas coupled driftion acoustic waves are derived in 2D in the weak nonlinearity limit. It is found that the ratio of the diamagnetic drift velocity to the velocity of nonlinear structure determines the nature (compressive or rarefactive) of the shock structure. The upper and lower bounds for velocity of the nonlinear shock structures are also found. It is noticed that the existence regimes for the drift shock waves in one and two dimensions for Cairns distributed electrons are very distinct from those with kappa distributed electrons. Interestingly, it is found that both compressive and rarefactive shock structures could be obtained for the one dimensional drift waves with kappa distributed electrons.},
doi = {10.1063/1.4961921},
journal = {Physics of Plasmas},
number = 9,
volume = 23,
place = {United States},
year = 2016,
month = 9
}

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