Planar and Nonplanar Solitons in Multi-Ion Dusty Plasma

Engineering International

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Field Value
 
Title Planar and Nonplanar Solitons in Multi-Ion Dusty Plasma
 
Creator Deeba, F.
Islam, Kazi Asraful
Mamun, A. A.
 
Subject Dusty Plasma
Planar and nonplanar soliton
K-dV
mK-dV
Gardner equation
double layers
Soliton
Solitary Wave
Dust-Ion-Acoustic Wave
Multi-ion
Space Plasma
 
Description A rigorous theoretical investigation has been made on nonlinear dust-ion-acoustic (DIA) solitary waves (SWs) in a multi-ion dusty plasma system, consisting of inertial positive and negative ions, and arbitrary charged stationary dust. The dust particles have been considered as arbitrarily (either positively or negatively) charged in order to observe the effects of dust polarity on the DIA SWs. Three different approaches (K-dV (Korteweg-de Vries), mK-dV (mixed K-dV), and Gardner) have been employed to analysis the entire regime. The reductive perturbation method has been employed in all these three approaches. Using reductive perturbation method, we first derive K-dV equation which let us to analyze both types (bright and dark) of solitons, but, in a very limited region. After that mK-dV equation has been derived which let us analyze bright soliton for a large region, but cannot show the dark soliton. Finally, we have derived the Gardner equation employing the same method, through which we were able to analyze both the bright and dark solitons for a large region. We also employed the modified Gardner (mG) equation to observe the effects of nonplanar geometry as well as time evolution of SWs. It has been found that both the positive and negative solitons depend on the ion number density of the ions, dust polarity, temperature, as well as time scale. It is also shown that the properties of the nonplanar (cylindrical and spherical) DIA-GSs are significantly different from those of the one dimensional planar ones.
 
 
Publisher Asian Business Consortium
 
Date 2019-07-25
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://abc.us.org/ojs/index.php/ei/article/view/474
10.18034/ei.v7i2.474
 
Source Engineering International; Vol. 7 No. 2 (2019): July - December Issue; 49-66
2409-3629
10.18034/ei.v7i2
 
Language eng
 
Relation https://abc.us.org/ojs/index.php/ei/article/view/474/927
 
Rights Copyright (c) 2019 F. Deeba, Kazi Asraful Islam, A. A. Mamun
https://creativecommons.org/licenses/by-nc/4.0
 

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