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.

Effects of polarization force and fast electrons on DA shock waves in a strongly coupled dusty plasma

2012 ◽  
Vol 79 (1) ◽  
pp. 1-6 ◽  
Author(s):  
S. PERVIN ◽  
S. S. DUHA ◽  
M. ASADUZZAMAN ◽  
A. A. MAMUN
Keyword(s):  
Shock Waves ◽  
Dusty Plasma ◽  
Charged Dust ◽  
Plasma System ◽  
Strongly Coupled ◽  
Polarization Force ◽  
Dust Acoustic ◽  
Basic Features ◽  
Strongly Coupled Dusty Plasma ◽  
Dusty Plasma System

AbstractA strongly coupled dusty plasma system consisting of non-thermal electrons, Maxwellian ions, and negatively charged dust in presence of polarization force has been considered. The nonlinear propagation of dust-acoustic shock waves in such a dusty plasma system has been theoretically investigated by employing the reductive perturbation method. The effects of the polarization force and non-thermal electrons, on the properties of these dust-acoustic shock waves are briefly discussed. It is shown that the strong correlation among the charged dust grains is a source of dissipation, and is responsible for the formation of the dust-acoustic shock waves. It has been found that the effects of polarization force and non-thermal electrons significantly modify the basic features of such shock waves. It has been proposed to design a new laboratory experiment, which will be able to identify the basic features of the dust-acoustic shock waves predicted in this present investigation.

Effects of polarization force and nonthermal ions on dust-acoustic (DA) shock waves in a strongly coupled dusty plasma with positively charged dust

Open Physics ◽  
2014 ◽  
Vol 12 (11) ◽  
Author(s):  
Shikha Pervin ◽  
Khandaker Ashrafi ◽  
M. Zobaer ◽  
Md. Salahuddin ◽  
A. Mamun
Keyword(s):  
Shock Waves ◽  
Dusty Plasma ◽  
Nonlinear Propagation ◽  
Charged Dust ◽  
Dust Grains ◽  
Strongly Coupled ◽  
Polarization Force ◽  
Dust Acoustic ◽  
Strongly Coupled Dusty Plasma ◽  
Positively Charged

AbstractThe nonlinear propagation of the dust-acoustic (DA) waves in a strongly coupled dusty plasma containing Maxwellian electrons, nonthermal ions, and positively charged dust is theoritically investigated by a Burgers equation. The effects of the polarization force (which arises due to the interaction between electrons and highly positively charged dust grains) and nonthermal ions are studied. DA shock waves are found to exist with positive potential only. It represents that the strong correlation among the charged dust grains is a source of dissipation, and is responsible for the formation of DA shock waves. The effects of polarization force and nonthermal ions significantly modified the basic features of DA shock waves in strongly coupled dusty plasma.

Dust-acoustic shock waves in a charge varying electronegative magnetized dusty plasma with suprathermal electrons

2012 ◽  
Vol 19 (12) ◽  
pp. 123706 ◽  
Author(s):  
Mouloud Tribeche ◽  
Mustapha Bacha
Keyword(s):  
Shock Waves ◽  
Dusty Plasma ◽  
Magnetized Dusty Plasma ◽  
Suprathermal Electrons ◽  
Dust Acoustic ◽  
A Charge

Nonlinear propagation of dust-acoustic waves in a magnetized dusty plasma with vortex-like ion distribution

1998 ◽  
Vol 59 (3) ◽  
pp. 575-580 ◽  
Author(s):  
A. A. MAMUN
Keyword(s):  
Dusty Plasma ◽  
Acoustic Waves ◽  
Solitary Wave Solution ◽  
Nonlinear Propagation ◽  
Charged Dust ◽  
Ion Distribution ◽  
Free Electrons ◽  
Dust Acoustic Waves ◽  
Magnetized Dusty Plasma ◽  
Dust Acoustic

A theoretical investigation has been made of the nonlinear propagation of dust-acoustic waves in a magnetized three-component dusty plasma consisting of a negatively charged dust fluid, free electrons and vortex-like distributed ions. It is found that, owing to the departure from the Boltzmann ion distribution to a vortex-like one, the dynamics of small- but finite-amplitude dust-acoustic waves in a magnetized dusty plasma is governed by the modified Korteweg–de Vries equation. The latter admits a stationary dust-acoustic solitary-wave solution that has larger amplitude, smaller width and higher propagation velocity than that involving adiabatic ions. The effects of external magnetic field, trapped ions and free electrons on the properties of these dust-acoustic solitary waves are briefly discussed.

Effect of Superthermal Polarization Force on Dust Acoustic Nonlinear Structures

2018 ◽  
Vol 73 (9) ◽  
pp. 795-803 ◽  
Author(s):  
Papihra Sethi ◽  
Kuldeep Singh ◽  
N.S. Saini
Keyword(s):  
Solitary Waves ◽  
Burgers Equation ◽  
Perturbation Technique ◽  
Negative Polarity ◽  
Charged Dust ◽  
Nonlinear Structures ◽  
Polarization Force ◽  
Dust Acoustic ◽  
Superthermal Ions ◽  
Soliton Energy

AbstractAn investigation of the dust acoustic shock waves as well as solitary waves in an unmagnetized dusty plasma consisting of fluid of negatively charged dust grains, superthermal ions, and Maxwellian electrons under the influence of superthermally modified polarization force is presented. The polarization force is significantly influenced by superthermal ions. Reductive perturbation technique has been used to derive the Korteweg-de Vries-Burgers equation. It is illustrated that the superthermal polarization force significantly alters the characteristics of the negative polarity shock and solitary waves. It is also examined that the soliton energy gets depleted by the influence of superthermal polarization force.

Dust-acoustic shock waves in a charge varying electronegative magnetized dusty plasma with nonthermal ions: Application to Halley Comet plasma

2013 ◽  
Vol 20 (10) ◽  
pp. 103704 ◽  
Author(s):  
Mouloud Tribeche ◽  
Mustapha Bacha
Keyword(s):  
Shock Waves ◽  
Dusty Plasma ◽  
Magnetized Dusty Plasma ◽  
Dust Acoustic ◽  
A Charge

Dust acoustic solitons in a magnetized dusty plasma

1998 ◽  
Vol 60 (2) ◽  
pp. 265-273 ◽  
Author(s):  
H. K. MALIK ◽  
K. D. TRIPATHI ◽  
S. K. SHARMA
Keyword(s):  
Magnetic Field ◽  
Wave Propagation ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Dusty Plasma ◽  
Charged Dust ◽  
Propagation Characteristics ◽  
Propagation Angle ◽  
Magnetized Dusty Plasma ◽  
Dust Acoustic

Propagation characteristics of dust acoustic solitons are studied in a magnetized dusty plasma consisting of ions, electrons and negatively charged dust grains. It is found that rarefactive solitons (solitons associated with negative potentials) are possible in such a plasma. The effects on the soliton characteristics of magnetic field strength, wave propagation angle, and densities and temperatures of the plasma particles are analysed.

Dissipative dust-acoustic shock waves in a varying charge electronegative magnetized dusty plasma with trapped electrons

2016 ◽  
Vol 23 (8) ◽  
pp. 083702 ◽  
Author(s):  
Mustapha Bacha ◽  
Mouloud Tribeche
Keyword(s):  
Shock Waves ◽  
Dusty Plasma ◽  
Trapped Electrons ◽  
Magnetized Dusty Plasma ◽  
Dust Acoustic
Sign in / Sign up

Export Citation Format

Share Document