Parametric Study of Nonplanar Dust Acoustic Solitons in Two-Dimensional Superthermal Dusty Plasmas

被引：10
作者：
Khan, S. [1 ,2 ]
Ata-ur-Rahman [3 ]
Ali, S. [2 ]
Khalid, M. [1 ]
Khattak, N. A. D. [1 ]
Zeb, A. [3 ]
机构：
[1] Gomal Univ, Dept Phys, Dera Ismail Khan 29050, Pakistan
[2] Natl Ctr Phys, QAU Campus,Shahdrah Valley Rd, Islamabad 44000, Pakistan
[3] Islamia Coll Peshawar, Dept Phys, Peshawar 25120, Pakistan
来源：
CONTRIBUTIONS TO PLASMA PHYSICS | 2016年 / 56卷 / 10期
关键词：
Dust acoustic solitons; Cylindrical Kadomtsev-Petviashvili equation; SOLITARY WAVES; ION; INSTABILITY; ELECTRONS; CHARGE; MODEL;
D O I：
10.1002/ctpp.201600016
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The nonlinear properties of two dimensional low-frequency electrostatic excitations of charged dust particles (or defects) are studied in a collisionless, unmagnetized dusty plasma. A fully ionized three-component model plasma consisting of kappa distributed electrons, Maxwellian ions, and negatively charged massive dust grains is considered. In this regard, the well known reductive perturbation technique is used to the hydrodynamical equations and the Poisson equation, obtaining the cylindrical Kadomtsev-Petviashvili (CKP) equation. A parametric investigation indicates that the structural characteristics of these nonlinear excitations (width, amplitude) are significantly affected by the plasma nonthermality as well as by the relevant plasma parameters, such as dust concentration and dust temperature. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：927 / 937
页数：11
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