Dusty plasma in the stratified glow discharge in moderate magnetic field

2019 ◽  
Vol 59 (4-5) ◽  
pp. e201800139
Author(s):  
Sergey I. Pavlov ◽  
Elena S. Dzlieva ◽  
Leontiy A. Novikov ◽  
Maxim A. Ermolenko ◽  
Artem Yu. Ivanov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Glow Discharge ◽  
Dusty Plasma ◽  
Moderate Magnetic Field

Influence of Discharge Current, Pressure, and Magnetic Field on the Spatial Distribution of Particles and Fluxes in the Dusty Plasma of the Positive Column of DC Glow Discharge

2021 ◽  
Vol 49 (2) ◽  
pp. 878-885
Author(s):  
Jinming Li ◽  
Dmitrii V. Bogdanov ◽  
Anatoly A. Kudryavtsev ◽  
Evgeniy A. Bogdanov ◽  
Chengxun Yuan ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Spatial Distribution ◽  
Glow Discharge ◽  
Dusty Plasma ◽  
Discharge Current ◽  
Positive Column ◽  
Dc Glow Discharge

scholarly journals Пылевая плазма в тлеющем разряде в магнитном поле до 3000 G

2018 ◽  
Vol 44 (19) ◽  
pp. 66
Author(s):  
Е.С. Дзлиева ◽  
Л.А. Новиков ◽  
С.И. Павлов ◽  
В.Ю. Карасев
Keyword(s):  
Magnetic Field ◽  
Angular Velocity ◽  
Glow Discharge ◽  
Magnetic Fields ◽  
Dusty Plasma ◽  
Drag Force ◽  
Applied Magnetic Field ◽  
Magnetic Trap ◽  
Current Channel ◽  
Angular Velocities

AbstractA glow discharge dusty plasma in a magnetic trap in which the current channel narrows is obtained in moderate magnetic fields up to 3000 G. The results of initial experiments are reported. The formation of stable dusty plasma structures rotating at record-high angular velocities up to 15 rad/s is observed. The dependence of the angular velocity on the strength of the applied magnetic field is measured experimentally. We interpret it quantitatively on the basis of the ion drag force.

scholarly journals Dusty Plasma in Inhomogeneous Magnetic Fields in a Stratified Glow Discharge

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3788
Author(s):  
Elena S. Dzlieva ◽  
Lev G. D’yachkov ◽  
Leontiy A. Novikov ◽  
Sergey I. Pavlov ◽  
Viktor Y. Karasev
Keyword(s):  
Magnetic Field ◽  
Glow Discharge ◽  
Magnetic Fields ◽  
Dusty Plasma ◽  
Inhomogeneous Magnetic Field ◽  
Dust Particles ◽  
Uniform Field ◽  
The Magnetic Field

We study the dynamics of dust particles in a stratified glow discharge in inhomogeneous magnetic fields. Dust structures are formed in standing striations, in which traps for dust particles arise. When a magnetic field is applied, these structures begin to rotate. The observations were carried out in striations near the end of the solenoid, where the region of an inhomogeneous magnetic field begins. With an increase in the magnetic field, the dusty structure can be deformed. The rotation of a dusty structure in an inhomogeneous magnetic field has been studied in detail; it has its own peculiarities in comparison with rotation in a uniform field. We have considered the mechanisms of such rotation and estimated its velocity.

The onset of rotational motion of dusty plasma structures in strata of a glow discharge in a magnetic field

2006 ◽  
Vol 100 (3) ◽  
pp. 456-462 ◽  
Author(s):  
E. S. Dzlieva ◽  
V. Yu. Karasev ◽  
A. I. Éĭkhval’d
Keyword(s):  
Magnetic Field ◽  
Glow Discharge ◽  
Dusty Plasma ◽  
Rotational Motion

On the possibility of phase transitions in dusty plasma structures in a glow discharge under the action of a magnetic field

2006 ◽  
Vol 101 (5) ◽  
pp. 816-821 ◽  
Author(s):  
E. S. Dzlieva ◽  
A. Yu. Ivanov ◽  
V. Yu. Karasev ◽  
A. I. Éĭkhval’d
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Glow Discharge ◽  
Dusty Plasma

Glow Discharge in Magnetic Field

2003 ◽  
Author(s):  
Sergey Surzhikov ◽  
Joseph Shang
Keyword(s):  
Magnetic Field ◽  
Glow Discharge

A shallow-liquid theory in magnetohydrodynamics

1960 ◽  
Vol 7 (1) ◽  
pp. 81-107 ◽  
Author(s):  
L. E. Fraenkel
Keyword(s):  
Magnetic Field ◽  
Mechanical Energy ◽  
Fluid Velocity ◽  
Linear Equations ◽  
Qualitative Difference ◽  
Meridional Plane ◽  
Plane Flow ◽  
Non Linear ◽  
Moderate Magnetic Field ◽  
Approximate Equations

The non-linear and linear ‘shallow-water’ theories, which describe long gravity waves on the free surface of an inviscid liquid, are extended to the case of an electrically conducting liquid on a horizontal bottom, in the presence of a vertical magnetic field. The dish holding the liquid, and the medium outside it, are assumed to be non-conducting. The approximate equations are based on a small ratio of depth to wavelength, on the properties of mercury, and on a moderate magnetic field strength. These equations have a ‘magneto-hydraulic’ character, for in the shallow liquid layer the horizontal fluid velocity and current density are independent of the vertical co-ordinate.Some explicit solutions of the linear equations are obtained for plane flows and for axi-symmetric flows in which the velocity vector lies in a vertical, meridional plane. The amplitudes of waves in a dish, and the amplitudes behind wave fronts progressing into undisturbed liquid, are found to be exponentially damped, the mechanical energy associated with a disturbance being dissipated by Joule heating.The approximate non-linear equations for plane flow are studied by means of characteristic variables, and it appears that, because of the magnetic damping effect, there is less qualitative difference between solutions of the non-linear and linear approximate equations at large times than is the case when the magnetic field is absent. In particular, the characteristic curves depart only a finite distance from their ‘undisturbed positions’.

scholarly journals Reversibility of the Magnetocaloric Effect in the Bean-Rodbell Model

2021 ◽  
Vol 7 (5) ◽  
pp. 60
Author(s):  
Luis M. Moreno-Ramírez ◽  
Victorino Franco
Keyword(s):  
Magnetic Field ◽  
Thermal Hysteresis ◽  
Entropy Change ◽  
Second Order ◽  
Zero Field ◽  
First Order ◽  
Magnetic Field Change ◽  
Magnetocaloric Materials ◽  
Moderate Magnetic Field ◽  
The Magnetic Field

The applicability of magnetocaloric materials is limited by irreversibility. In this work, we evaluate the reversible magnetocaloric response associated with magnetoelastic transitions in the framework of the Bean-Rodbell model. This model allows the description of both second- and first-order magnetoelastic transitions by the modification of the η parameter (η<1 for second-order and η>1 for first-order ones). The response is quantified via the Temperature-averaged Entropy Change (TEC), which has been shown to be an easy and effective figure of merit for magnetocaloric materials. A strong magnetic field dependence of TEC is found for first-order transitions, having a significant increase when the magnetic field is large enough to overcome the thermal hysteresis of the material observed at zero field. This field value, as well as the magnetic field evolution of the transition temperature, strongly depend on the atomic magnetic moment of the material. For a moderate magnetic field change of 2 T, first-order transitions with η≈1.3−1.8 have better TEC than those corresponding to stronger first-order transitions and even second-order ones.

Excitation of Dust-Acoustic Waves in a DC Glow-Discharge Dusty Plasma by Means of Pulsed Gasdynamic Stimulation

2004 ◽  
Vol 42 (5) ◽  
pp. 659-666 ◽  
Author(s):  
M. Yu. Pustyl'nik ◽  
V. M. Torchinskii ◽  
V.I. Molotkov ◽  
A. G. Khrapak ◽  
A. V. Chernyshev ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Dusty Plasma ◽  
Acoustic Waves ◽  
Dc Glow Discharge ◽  
Dust Acoustic Waves ◽  
Dust Acoustic
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