Fluid equations for a dusty plasma with dust charge and mass distribution interacting with neutral dust through dust grain charging and secondary emission

2000 ◽  
Vol 7 (10) ◽  
pp. 3885 ◽  
Author(s):  
Ram K. Varma
Keyword(s):  
Dusty Plasma ◽  
Mass Distribution ◽  
Secondary Emission ◽  
Dust Charge ◽  
Fluid Equations ◽  
Dust Grain

scholarly journals Weibel instability oscillation in a dusty plasma with counter-streaming electrons

2020 ◽  
Vol 38 (1) ◽  
pp. 8-13 ◽  
Author(s):  
Daljeet Kaur ◽  
Suresh C. Sharma ◽  
R.S. Pandey ◽  
Ruby Gupta
Keyword(s):  
Growth Rate ◽  
Dusty Plasma ◽  
Relative Number ◽  
Dust Grains ◽  
Electromagnetic Mode ◽  
Weibel Instability ◽  
Dust Charge ◽  
Second Mode ◽  
Dust Charge Fluctuations ◽  
Dust Grain

AbstractWe investigate the Weibel instability (WI) in a dusty plasma which is driven to oscillation by the addition of dust grains in the plasma. Our analysis predicts the existence of three modes in a dusty plasma. There is a high-frequency electromagnetic mode, whose frequency increases with an increase in the relative number density of dust grains and which approaches instability due to the presence of dust grains. The second mode is a damping mode which exists due to dust charge fluctuations in plasma. The third mode is the oscillating WI mode. The dispersion relation and the growth rate of various modes in the dusty plasma are derived using the first-order perturbation theory. The effect of dust grain parameters on frequency and growth rate is also studied and reported.

Effects of vortex-like (trapped) electron distribution on non-linear dust-acoustic waves with positive dust charge fluctuation

2010 ◽  
Vol 76 (3-4) ◽  
pp. 477-485 ◽  
Author(s):  
M. R. AMIN ◽  
SANJIT K. PAUL ◽  
GURUDAS MANDAL ◽  
A. A. MAMUN
Keyword(s):  
Dusty Plasma ◽  
Acoustic Waves ◽  
Electron Distribution ◽  
Reductive Perturbation Method ◽  
Nonlinear Propagation ◽  
Charge Fluctuation ◽  
Dust Charge ◽  
Dust Acoustic ◽  
Dust Grain ◽  
Trapped Electron

AbstractThe nonlinear propagation of dust-acoustic (DA) waves in a dusty plasma consisting of Boltzmann-distributed ions, vortex-like distributed electrons and mobile charge fluctuating positive dust has been investigated by employing the reductive perturbation method. The effects of dust grain charge fluctuation and the vortex-like electron distribution are found to modify the properties of the DA solitary waves significantly. The implications of these results for some space and astrophysical dusty plasma systems are briefly mentioned.

Self-similar expansion of dusty plasmas

1997 ◽  
Vol 58 (3) ◽  
pp. 467-474 ◽  
Author(s):  
S. R. PILLAY ◽  
S. V. SINGH ◽  
R. BHARUTHRAM ◽  
M. Y. YU
Keyword(s):  
Dusty Plasma ◽  
Dusty Plasmas ◽  
Dust Particles ◽  
Charge Variation ◽  
Dust Charge ◽  
Electrons And Ions ◽  
Fluid Equations ◽  
Self Similar

The radially symmetric self-similar expansion of a dusty plasma is investigated in cylindrical and spherical geometries. The electrons and ions are assumed to be in Boltzmann equilibria, while the dynamics of the dust particles is governed by the fluid equations. The effects of finite dust pressure as well as dust-charge variation are included.

The effect of positive/negative ion on the dust grain charging process in a Vasyliunas-Cairns (VC)-distributed dusty plasma system

2019 ◽  
Vol 21 (6) ◽  
pp. 065001
Author(s):  
N AHMAD ◽  
A A ABID ◽  
Y AL-HADEETHI ◽  
M N S QURESHI ◽  
Saqib REHMAN
Keyword(s):  
Dusty Plasma ◽  
Negative Ion ◽  
Plasma System ◽  
Dust Grain ◽  
Dusty Plasma System

Dust-induced instability with dust charge fluctuations in a rotating dusty plasma

2020 ◽  
Vol 74 (6) ◽  
Author(s):  
Xiao-Song Yang ◽  
Bing Wang ◽  
Hui Chen ◽  
Xiao-Chang Chen ◽  
San-Qiu Liu
Keyword(s):  
Dusty Plasma ◽  
Charge Fluctuations ◽  
Dust Charge ◽  
Dust Charge Fluctuations

Effects of dust grain charge fluctuation on an obliquely propagating dust acoustic solitary potential in a magnetized dusty plasma

2000 ◽  
Vol 63 (2) ◽  
pp. 191-200 ◽  
Author(s):  
A. A. MAMUN ◽  
M. H. A. HASSAN
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Dusty Plasma ◽  
Finite Amplitude ◽  
Reductive Perturbation Method ◽  
Charge Fluctuation ◽  
Dust Grains ◽  
Magnetized Dusty Plasma ◽  
Dust Acoustic ◽  
Dust Grain

Effects of dust grain charge fluctuation, obliqueness and external magnetic field on a finite-amplitude dust acoustic solitary potential in a magnetized dusty plasma, consisting of electrons, ions and charge-fluctuating dust grains, are investigated using the reductive perturbation method. It is shown that such a magnetized dusty plasma system may support a dust acoustic solitary potential on a very slow time scale involving the motion of dust grains, whose charge is self- consistently determined by local electron and ion currents. The effects of dust grain charge fluctuation, external magnetic field and obliqueness are found to modify the properties of this dust acoustic solitary potential significantly. The implications of these results for some space and astrophysical dusty plasma systems, especially planetary ring systems and cometary tails, are briefly mentioned.

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