Development of three-dimensional electric current streamer in weakly ionized plasma with strong magnetic field, high temperature and high velocity

1999 ◽  
Author(s):  
Motoo Ishikawa ◽  
Kouichi Tateishi
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Electric Current ◽  
Strong Magnetic Field ◽  
High Velocity ◽  
Three Dimensional ◽  
Weakly Ionized ◽  
Weakly Ionized Plasma

Convection of a weakly ionized plasma in a strong magnetic field: non-axisymmetric waves

1979 ◽  
Vol 22 (1) ◽  
pp. 187-191 ◽  
Author(s):  
Bhimsen K. Shivamoggi ◽  
Mahinder S. Uberoi
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Applied Magnetic Field ◽  
Convective Instability ◽  
Narrow Gap ◽  
Azimuthal Direction ◽  
Central Electrode ◽  
Weakly Ionized ◽  
Weakly Ionized Plasma

Convective instability of a weakly ionized plasma contained in a narrow gap between two metal cylinders is studied considering non-axisymmetric waves. The case with the applied magnetic field in the azimuthal direction due to a central electrode is treated. The results show that the non-axisymmetric waves are more stable than their axisymmetric counterparts.

Three-Dimensional Numerical Analysis for Convection of Air in a Bore Space of a Superconducting Magnet

2003 ◽  
Author(s):  
G. Tomita ◽  
M. Kaneda ◽  
T. Tagawa ◽  
H. Ozoe
Keyword(s):  
Magnetic Field ◽  
Heat Flux ◽  
Natural Convection ◽  
Numerical Analysis ◽  
Strong Magnetic Field ◽  
Three Dimensional ◽  
Superconducting Magnet ◽  
Constant Heat Flux ◽  
Constant Heat ◽  
Magnetizing Force

Three-dimensional numerical computations were carried out for the natural convection of air in a horizontal cylindrical enclosure in a magnetic field, which is modeled for a bore space of a horizontal superconducting magnet. The enclosure was cooled from the circumferential sidewall at the constant heat flux and vertical end walls were thermally insulated. A strong magnetic field was considered by a one-turn electric coil with the concentric and twice diameter of the cylinder. Without a magnetic field, natural convection occurs along the circumferential sidewall. When a magnetic field was applied, magnetizing force induced the additional convection, that is, the cooled air at the circumferential wall was attracted to the location of a coil. Consequently, the temperature around the coil decreased extensively.

High-temperature three-dimensional GaN-based hall sensors for magnetic field detection

2020 ◽  
Vol 54 (7) ◽  
pp. 075003
Author(s):  
Huolin Huang ◽  
Hui Zhang ◽  
Yaqing Cao ◽  
Yanhong Liu ◽  
Kaiming Ma ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Three Dimensional ◽  
Field Detection ◽  
Hall Sensors

Use of Langmuir probes in a weakly ionized, steady-state plasma with strong magnetic field

1997 ◽  
Vol 68 (11) ◽  
pp. 4043-4050 ◽  
Author(s):  
D. Batani ◽  
S. Alba ◽  
P. Lombardi ◽  
A. Galassi
Keyword(s):  
Magnetic Field ◽  
Steady State ◽  
Strong Magnetic Field ◽  
Langmuir Probes ◽  
Weakly Ionized ◽  
State Plasma

Enhanced plasma losses due to collisional drift waves and their reduction by dynamic stabilization in a weakly ionized plasma

1979 ◽  
Vol 57 (11) ◽  
pp. 1890-1895
Author(s):  
S. Q. Mah ◽  
H. W. H. Van Andel
Keyword(s):  
Magnetic Field ◽  
Phase Difference ◽  
Dynamic Stabilization ◽  
Plasma Transport ◽  
Drift Waves ◽  
Azimuthal Magnetic Field ◽  
Potential Fluctuations ◽  
Weakly Ionized ◽  
Weakly Ionized Plasma ◽  
Good Agreement

The mechanism of anomalous plasma transport associated with dissipative drift instabilities in a weakly ionized plasma is investigated experimentally. Detailed measurements of the phase difference between electron density and potential fluctuations are presented. The results show good agreement between predicted anomalous losses associated with this phase difference and measured reductions in the plasma density. It is shown experimentally that dynamic stabilization using an oscillating azimuthal magnetic field effectively reduces the plasma losses due to the fluctuations.

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