Macroscopic Equations for a Multicomponent Plasma

1981 ◽  
Vol 21 (2) ◽  
pp. 67-76
Author(s):  
H. Hebenstreit
Keyword(s):  
Multicomponent Plasma ◽  
Macroscopic Equations

scholarly journals Micropolar medium in a funnel-shaped crusher

2021 ◽  
Author(s):  
Mariia Fomicheva ◽  
Elena N. Vilchevskaya ◽  
Nikolay Bessonov ◽  
Wolfgang H. Müller
Keyword(s):  
Structural Changes ◽  
Coupled System ◽  
Viscosity Coefficient ◽  
Coupled Flow ◽  
Production Term ◽  
Characteristic Particle ◽  
Implicit Finite Difference ◽  
Micropolar Medium ◽  
Velocity Pressure ◽  
Macroscopic Equations

AbstractIn this paper, the solution to a coupled flow problem for a micropolar medium undergoing structural changes is presented. The structural changes occur because of a grinding of the medium in a funnel-shaped crusher. The standard macroscopic equations for mass and linear momentum are solved in combination with a balance equation for the microinertia tensor containing a production term. The constitutive equations of the medium describe a linear viscous material with a viscosity coefficient depending on the characteristic particle moment of inertia, the so-called microinertia. A coupled system of equations is presented and solved numerically in order to determine the distribution of the fields for velocity, pressure, viscosity coefficient, and microinertia in all points of the continuum. The numerical solution to this problem is found by using the implicit finite difference method and the upwind scheme.

Observation of second order ion acoustic Peregrine breather in multicomponent plasma with negative ions

2016 ◽  
Vol 23 (2) ◽  
pp. 022107 ◽  
Author(s):  
Pallabi Pathak ◽  
S. K. Sharma ◽  
Y. Nakamura ◽  
H. Bailung
Keyword(s):  
Negative Ions ◽  
Second Order ◽  
Multicomponent Plasma ◽  
Ion Acoustic ◽  
Peregrine Breather

Ion-acoustic resistivity of a multicomponent plasma

1979 ◽  
Vol 74 (1-2) ◽  
pp. 72-76 ◽  
Author(s):  
H.C. Jain ◽  
S.R. Sharma
Keyword(s):  
Multicomponent Plasma ◽  
Ion Acoustic

scholarly journals Ion Acoustic Peregrine Soliton Under Enhanced Dissipation

2021 ◽  
Vol 8 ◽  
Author(s):  
Pallabi Pathak
Keyword(s):  
Acoustic Wave ◽  
Negative Ions ◽  
Landau Damping ◽  
Ion Acoustic Wave ◽  
Multicomponent Plasma ◽  
Plasma Device ◽  
Ion Acoustic ◽  
Damping Rate ◽  
Double Plasma Device ◽  
Spatial Damping

The effect of enhanced Landau damping on the evolution of ion acoustic Peregrine soliton in multicomponent plasma with negative ions has been investigated. The experiment is performed in a multidipole double plasma device. To enhance the ion Landau damping, the temperature of the ions is increased by applying a continuous sinusoidal signal of frequency close to the ion plasma frequency ∼1 MHz to the separation grid. The spatial damping rate of the ion acoustic wave is measured by interferometry. The damping rate of ion acoustic wave increases with the increase in voltage of the applied signal. At a higher damping rate, the Peregrine soliton ceases to show its characteristics leaving behind a continuous envelope.

Macroscopic equations for rarefied gas dynamics

2000 ◽  
Vol 271 (1-2) ◽  
pp. 87-91 ◽  
Author(s):  
Xinzhong Chen ◽  
Hongling Rao ◽  
Edward A. Spiegel
Keyword(s):  
Gas Dynamics ◽  
Rarefied Gas ◽  
Rarefied Gas Dynamics ◽  
Macroscopic Equations

Cylindrical ion-acoustic waves in a warm multicomponent plasma

2000 ◽  
Vol 63 (4) ◽  
pp. 343-353 ◽  
Author(s):  
S. K. EL-LABANY ◽  
S. A. EL-WARRAKI ◽  
W. M. MOSLEM
Keyword(s):  
Perturbation Theory ◽  
Acoustic Waves ◽  
Vries Equation ◽  
Negative Ions ◽  
Ion Acoustic Waves ◽  
Multicomponent Plasma ◽  
Reductive Perturbation ◽  
Ion Acoustic ◽  
Ion Acoustic Solitons ◽  
Warm Plasma

Cylindrical ion-acoustic solitons are investigated in a warm plasma with negative ions and multiple-temperature electrons through the derivation of a cylindrical Korteweg–de Vries equation using a reductive perturbation theory. The results are compared with those for the corresponding planar solitons.

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