scholarly journals High-current arc discharge in air

2021 ◽  
Vol 2100 (1) ◽  
pp. 012031
Author(s):  
A N Bocharov ◽  
E A Mareev ◽  
N A Popov
Keyword(s):  
Experimental Data ◽  
Gas Dynamics ◽  
Discharge Channel ◽  
Arc Discharge ◽  
High Current ◽  
Dimensional Model ◽  
Pinch Effect ◽  
Wide Range ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc

Abstract Computational model of high-current pulsed arc discharge in air is proposed. This is, in general, two-dimensional model with taking into account gas dynamics of the discharge channel, real air thermodynamics in a wide range of pressure and temperature, electrodynamics of the discharge including pinch effect, and radiation. The developed model was applied to simulate the electric discharge in air for the currents of 1 - 250 kA and characteristic rise times in 13 - 25 µs, and results of calculations were compared with experimental ones. It was concluded that most of characteristics of the discharge are predicted well. Namely, arc column radius and shock wave position agree well with experimental data for all current amplitudes and rise times considered. Radial distributions of temperature and electron density also satisfactorily agree with experimental data. It was found that pinch effect should be considered for currents higher than 100 kA.

Numerical simulation of high-current pulsed arc discharge in air

2021 ◽  
Author(s):  
Aleksey Bocharov ◽  
Evgeny A. Mareev ◽  
Nikolay A Popov
Keyword(s):  
Experimental Data ◽  
Arc Discharge ◽  
High Current ◽  
Pinch Effect ◽  
One Dimensional ◽  
Wide Range ◽  
Dimensional Version ◽  
Experimental Works ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc

Abstract Computational model of high-current pulsed arcdischarge in air is proposed. This is, in general, two-dimensional model with taking into account gas dynamics of the discharge channel, real air thermodynamics in a wide range of pressure and temperature, electrodynamics of the discharge including pinch effect, and radiation. One-dimensional version of the model is tested and verified on several numerical and experimental works reported recently. It is concluded that low and moderate current discharges are satisfactorily described with the developed model. Then, developed model was applied to simulate the electric discharge in air for the currents of 1 - 250 kA and characteristic rise times in 13 - 25 µs, and results of calculations were compared with experimental ones. It was concluded that most of characteristics of the discharge are predicted well. Namely, arc column radius and shock wave position agree well with experimental data for all current amplitudes and rise times considered. Radial distributions of temperature and electron density also satisfactorily agree with experimental data. It was found that pinch effect should be considered for currents higher than 100 kA.

Preparation of ultrafine Cu3Si in high-current pulsed arc discharge

2016 ◽  
Vol 11 (9-10) ◽  
pp. 548-552 ◽  
Author(s):  
A. Ya. Pak ◽  
K. N. Shatrova ◽  
N. E. Aktaev ◽  
A. S. Ivashutenko
Keyword(s):  
Arc Discharge ◽  
High Current ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc

Characteristics of High-Current Pulsed Arc Discharge

1996 ◽  
Vol 35 (Part 1, No. 10) ◽  
pp. 5487-5494 ◽  
Author(s):  
Katsumi Masugata ◽  
Hiroaki Maekawa ◽  
Masayuki Yoshida ◽  
Tsutomu Ishii ◽  
Toshiyuki Suzuki ◽  
...  
Keyword(s):  
Arc Discharge ◽  
High Current ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc

Experimental Stark Widths and Shifts in the 3p3D – 3d 3Fo O III Transition

2004 ◽  
Vol 59 (11) ◽  
pp. 791-794 ◽  
Author(s):  
S. Bukivić ◽  
A. Srećković ◽  
S. Djeniže
Keyword(s):  
Experimental Data ◽  
Electron Temperature ◽  
Oxygen Plasma ◽  
Arc Discharge ◽  
Measured Data ◽  
Spectral Lines ◽  
Pulsed Arc Discharge ◽  
D Values ◽  
And Shifts ◽  
Pulsed Arc

Stark widths (W) and shifts (d) of 3 doubly ionized oxygen (O III) spectral lines (326.085 nm, 326.532 nm and 326.720 nm) in the 3p3D-3d 3Fo transition have been measured in the optically thin helium-oxygen plasma created in a linear, low-pressure, pulsed arc discharge at a 26 000 K electron temperature and 1.1 · 1023 m−3 electron density. Our Stark shifts are the first measured data at an electron temperature smaller than 30 000 K. No theoreticalW and d data exist in this O III transition. Our W and d values are compared with the existing experimental data. On the basis of the found agreement among the experimental W and d values at a 26 000 K electron temperature we have evaluated their dependence on the electron temperature ranged between 10 000 K and 50 000 K

In situ surface oxide reduction with pulsed arc discharge for maximum adhesion of diamond-like carbon coatings

2008 ◽  
Vol 17 (12) ◽  
pp. 2071-2074 ◽  
Author(s):  
Veli-Matti Tiainen ◽  
Antti Soininen ◽  
Esa Alakoski ◽  
Yrjö T. Konttinen
Keyword(s):  
Arc Discharge ◽  
Surface Oxide ◽  
Diamond Like Carbon ◽  
Oxide Reduction ◽  
Carbon Coatings ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc

Production of nitric oxide using a pulsed arc discharge

2002 ◽  
Vol 30 (5) ◽  
pp. 1993-1998 ◽  
Author(s):  
T. Namihira ◽  
S. Katsuki ◽  
R. Hackam ◽  
H. Akiyama ◽  
K. Okamoto
Keyword(s):  
Nitric Oxide ◽  
Arc Discharge ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc

Synthesis of graphene nanosheets from petroleum asphalt by pulsed arc discharge in water

2013 ◽  
Vol 215-216 ◽  
pp. 45-49 ◽  
Author(s):  
Yongfeng Li ◽  
Qiang Chen ◽  
Kai Xu ◽  
Toshiro Kaneko ◽  
Rikizo Hatakeyama
Keyword(s):  
Arc Discharge ◽  
Graphene Nanosheets ◽  
Petroleum Asphalt ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc

Note: Iodine dissociation with a pulsed arc discharge

2017 ◽  
Vol 88 (8) ◽  
pp. 086111
Author(s):  
H. Saghafifar ◽  
M. S. Goodarzi
Keyword(s):  
Arc Discharge ◽  
Pulsed Arc Discharge ◽  
Pulsed Arc
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