Dust acoustic solitary and shock waves in strongly coupled dusty plasmas with nonthermal ions

Pramana ◽  
2009 ◽  
Vol 73 (5) ◽  
pp. 913-926 ◽  
Author(s):  
Hamid Reza Pakzad ◽  
Kurosh Javidan
Keyword(s):  
Shock Waves ◽  
Dusty Plasmas ◽  
Strongly Coupled ◽  
And Shock Waves ◽  
Dust Acoustic ◽  
Solitary And Shock Waves

Time-dependent non-planar dust-acoustic solitary and shock waves in strongly coupled adiabatic dusty plasma

2012 ◽  
Vol 79 (3) ◽  
pp. 249-255 ◽  
Author(s):  
M. S. RAHMAN ◽  
B. SHIKHA ◽  
A. A. MAMUN
Keyword(s):  
Shock Waves ◽  
Dusty Plasmas ◽  
Time Dependent ◽  
Planar Geometry ◽  
Charged Dust ◽  
Dust Grains ◽  
Strongly Coupled ◽  
And Shock Waves ◽  
Dust Acoustic ◽  
Solitary And Shock Waves

AbstractTime-dependent cylindrical and spherical dust-acoustic (DA) solitary and shock waves propagating in a strongly coupled dusty plasmas (containing strongly correlated negatively charged dust grains and weakly correlated adiabatic electrons and ions) are investigated. It is shown that cylindrical and spherical DA solitary and shock waves exist with negative potential, and that the strong correlation between the charged dust grains is a source of dissipation, and is responsible for the formation of cylindrical or spherical DA shock structures. It is also shown that the effects of a non-planar geometry (cylindrical and spherical) significantly modify the basic features (e.g. amplitude, width, speed, etc.) of DA solitary and shock waves. The implications of our results in laboratory experiments are briefly discussed.

Dust-acoustic waves in strongly coupled dusty plasmas with nonextensive electrons and ions

2012 ◽  
Vol 90 (7) ◽  
pp. 675-681 ◽  
Author(s):  
E.I. El-Awady ◽  
M. Djebli
Keyword(s):  
Acoustic Waves ◽  
Dusty Plasmas ◽  
Reductive Perturbation Method ◽  
Dust Acoustic Waves ◽  
Strongly Coupled ◽  
Electrons And Ions ◽  
Dust Acoustic ◽  
Nonlinear Features ◽  
Solitary And Shock Waves ◽  
Nonextensive Distribution

The nonlinear features of dust-acoustic waves in a strongly coupled unmagnetized dusty plasma containing electrons and ions following q-nonextensive distribution, and negatively charged mobile dust are investigated by using the reductive perturbation method. The effects of important parameters, such as the q-parameter, temperature, density, and velocity on the properties of solitary and shock waves are discussed. The conditions for the formation of solitary structures and monotonic and oscillatory shock structures are also found. The implications of our result in space and laboratory dusty plasmas are discussed.

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