Polarization force in an opposite polarity dusty plasma with hybrid Cairns–Tsallis distributed electrons

2021 ◽  
Author(s):  
Muhammad Farooq ◽  
Mushtaq Ahmad ◽  
Qasim Jan
Keyword(s):  
Dusty Plasma ◽  
Opposite Polarity ◽  
Polarization Force

Dust acoustic shock waves in dusty plasma of opposite polarity with non-extensive electron and ion distributions

2014 ◽  
Vol 80 (3) ◽  
pp. 517-528 ◽  
Author(s):  
S. K. Zaghbeer ◽  
H. H. Salah ◽  
N. H. Sheta ◽  
E. K. El-Shewy ◽  
A. Elgarayhi
Keyword(s):  
Shock Waves ◽  
Dusty Plasma ◽  
Collisionless Plasma ◽  
Homogeneous System ◽  
Opposite Polarity ◽  
Reductive Perturbation Method ◽  
Ion Distributions ◽  
Electrons And Ions ◽  
Dust Acoustic ◽  
Space Environments

A theoretical investigation has been made of obliquely propagating nonlinear electrostatic shock structures. The reductive perturbation method has been used to derive the Korteweg-de Vries-Burger (KdV-Burger) equation for dust acoustic shock waves in a homogeneous system of a magnetized collisionless plasma comprising a four-component dusty plasma with massive, micron-sized, positively, negatively dust grains and non-extensive electrons and ions. The effect of dust viscosity coefficients of charged dusty plasma of opposite polarity and the non-extensive parameters of electrons and ions have been studied. The behavior of the oscillatory and monotonic shock waves in dusty plasma has been investigated. It has been found that the presence of non-extensive parameters significantly modified the basic properties of shock structures in space environments.

scholarly journals Interaction of Dust-Acoustic Shock Waves in a Magnetized Dusty Plasma under the Influence of Polarization Force

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
N. S. Saini ◽  
Kuldeep Singh ◽  
Papihra Sethi
Keyword(s):  
Shock Waves ◽  
Dusty Plasma ◽  
Phase Shifts ◽  
Physical Parameters ◽  
Charged Dust ◽  
Nonlinear Structures ◽  
Plk Method ◽  
Polarization Force ◽  
Magnetized Dusty Plasma ◽  
Dust Acoustic

The interaction of dust-acoustic (DA) shock waves in a magnetized dusty plasma under the influence of nonextensively modified polarization force is investigated. The plasma model consists of negatively charged dust, Maxwellian electrons, nonextensive ions, and polarization force. In this investigation, we have derived the expression of polarization force in the presence of nonextensive ions and illustrated the head-on collision between two DA shock waves. The extended Poincaré–Lighthill–Kuo (PLK) method is employed to obtain the two-sided Korteweg–de Vries–Burgers (KdVB) equations and phase shifts of two shock waves. The trajectories and phase shifts of negative potential dust-acoustic shock waves after collision are examined. The combined effects of various physical parameters such as polarization force, nonextensivity of ions, viscosity of dust, and magnetic field strength on the phase shifts of DA shock waves have been studied. The present investigation might be useful to study the process of collision of nonlinear structures in space dusty plasma such as planetary rings where non-Maxwellian particles such as nonextensive ions, negatively charged dust, and electrons are present.

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