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 ◽  
...  
2021 ◽  
Vol 2100 (1) ◽  
pp. 012031
Author(s):  
A N Bocharov ◽  
E A Mareev ◽  
N A Popov

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.


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

Author(s):  
Aleksey Bocharov ◽  
Evgeny A. Mareev ◽  
Nikolay A Popov

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.


2008 ◽  
Vol 17 (12) ◽  
pp. 2071-2074 ◽  
Author(s):  
Veli-Matti Tiainen ◽  
Antti Soininen ◽  
Esa Alakoski ◽  
Yrjö T. Konttinen

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

2013 ◽  
Vol 215-216 ◽  
pp. 45-49 ◽  
Author(s):  
Yongfeng Li ◽  
Qiang Chen ◽  
Kai Xu ◽  
Toshiro Kaneko ◽  
Rikizo Hatakeyama

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

2003 ◽  
pp. 51-54 ◽  
Author(s):  
Stevan Djenize ◽  
Aleksandar Sreckovic ◽  
Srdjan Bukvic ◽  
Slobodanka Kalezic

Stark widths (W) and shifts (d) of 5 prominent triply ionized oxygen (O IV) spectral lines in 3 multiplets have been measured in oxygen plasma at 42 000 K electron temperature using a linear, low-pressure, pulsed arc discharge as an optically thin plasma source. Obtained W and d values have been compared to available experimental and theoretical data. We found a good agreement among our experimental W and d values and theoretical expectations.


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