Nonlinear dust-acoustic solitary waves and shocks in dusty plasmas with a pair of trapped ions

被引：30
作者：
Adhikary, Nirab C. [1 ]
Misra, Amar P. [2 ]
Deka, Manoj K. [3 ]
Dev, Apul N. [4 ]
机构：
[1] Inst Adv Study Sci & Technol, Phys Sci Div, Gauhati 781035, Assam, India
[2] Visva Bharati Univ, Dept Math, Santini Ketan 731235, W Bengal, India
[3] Gauhati Univ, Dept Appl Sci, Inst Sci & Technol, Gauhati 781014, Assam, India
[4] Siksha O Anusandhan Univ, Ctr Appl Math, Bhubaneswar 751030, Odisha, India
来源：
PHYSICS OF PLASMAS | 2017年 / 24卷 / 07期
关键词：
COMPLEX KDV EQUATION; DE-VRIES EQUATION; ULTRARELATIVISTIC ELECTRONS; SOLITONS;
D O I：
10.1063/1.4989732
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 propagation characteristics of small-amplitude dust-acoustic (DA) solitary waves (SWs) and shocks are studied in an unmagnetized dusty plasma with a pair of trapped positive and negative ions. Using the standard reductive perturbation technique with two different scalings of stretched coordinates, the evolution equations for DA SWs and shocks are derived in the form of complex Korteweg-de Vries and Burgers' equations. The effects of the dust charge variation, the dust thermal pressure, and the ratios of the positive to negative ion number densities as well as the free to trapped ion temperatures on the profiles of SWs and shocks are analysed and discussed. Published by AIP Publishing.
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页数：8
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