The effect of negative ions on the dust acoustic wave in dusty electronegative plasma with positively charged dust grains

2011 ◽  
Vol 375 (4) ◽  
pp. 832-838 ◽  
Author(s):  
Yunliang Wang ◽  
Xiangqian Jiang ◽  
Chunxia Guo ◽  
Zhongxiang Zhou
Keyword(s):  
Acoustic Wave ◽  
Negative Ions ◽  
Charged Dust ◽  
Dust Grains ◽  
Dust Acoustic Wave ◽  
Electronegative Plasma ◽  
Dust Acoustic ◽  
Positively Charged

Inward and outward dust acoustic cylindrical and spherical waves interaction in four-component dusty plasma with nonthermal ions

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Uday Narayan Ghosh ◽  
Prasanta Chatterjee ◽  
Barjinder Kaur
Keyword(s):  
Dusty Plasma ◽  
Charged Dust ◽  
Dust Grains ◽  
Mass Ratio ◽  
Temperature Ratio ◽  
Spherical Waves ◽  
Dust Acoustic ◽  
Waves Interaction ◽  
Positively Charged ◽  
Different Time Scales

Abstract A theoretical investigation by an all-inclusive adaptation of the PLK strategy is carried out in order to study the inward and outward interaction between two cylindrical and spherical dust acoustic solitary waves (DASWs) in an unmagnetized dusty plasma consisting of nonthermal distributed ions, negatively and positively charged dust grains along with electrons featuring Boltzmann’s distribution. The interactions and collisions between two cylindrical and spherical geometries at different time scales are studied. Also the combined effects of the nonthermality of ions, ion to electron temperature ratio as well as mass ratio of positive to negative dust grains have been studied in detail on the phase shifts raised due to collision. It has been seen that the properties of the cooperation of DASWs in cylindrical and spherical shaped are distinct.

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.

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