Formation of vortex structures at the electric arc interaction with gas flow in an external magnetic field

2016 ◽  
Vol 52 (1) ◽  
pp. 79-86
Author(s):  
I. B. Klementyeva ◽  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Gas Flow ◽  
Electric Arc ◽  
Vortex Structures

scholarly journals Experimental Investigation of a Magnetically Balanced Arc in a Transverse Argon Flow

1966 ◽  
Vol 88 (1) ◽  
pp. 27-30 ◽  
Author(s):  
T. W. Myers ◽  
C. N. McKinnon ◽  
J. C. Lysen
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Atmospheric Pressure ◽  
Gas Flow ◽  
Electric Arc ◽  
Test Apparatus ◽  
Gas Velocity ◽  
Argon Gas ◽  
Argon Flow ◽  
Arc Current

An experimental study of an electric arc in crossed convective and magnetic fields has been made. An electric arc was established across a rectangular test section through which argon gas was flowing at approximately atmospheric pressure and velocities up to 100 m/sec. Magnetic field strengths up to 3 webers/m2, oriented so that the Lorentz force opposed the convective force on the arc, were applied perpendicular to both the arc and the direction of the argon gas flow. The test apparatus and the procedure used to obtain the experimental relationship between the velocity of the argon flow and the balancing magnetic field are described. An analysis which assumed the magnetically balanced arc to be a gaseous cylinder positioned between the electrodes and with a diameter varying directly as the arc current satisfactorily explained the observed dependence of the balancing magnetic field on the gas velocity.

Air flow control around a cylindrical model induced by a rotating electric arc discharge in an external magnetic field. Part II

2017 ◽  
Vol 62 (8) ◽  
pp. 1171-1176 ◽  
Author(s):  
D. S. Munhoz ◽  
I. P. Zavershinskii ◽  
A. I. Klimov ◽  
P. N. Kazanskii ◽  
N. E. Molevich ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Flow Control ◽  
Arc Discharge ◽  
Air Flow ◽  
Electric Arc ◽  
Cylindrical Model ◽  
Electric Arc Discharge ◽  
Air Flow Control

Air flow control around a cylindrical model induced by a rotating electric arc discharge in an external magnetic field. Part I

2017 ◽  
Vol 62 (7) ◽  
pp. 1013-1018 ◽  
Author(s):  
D. S. Munkhoz ◽  
V. A. Bityurin ◽  
A. I. Klimov ◽  
P. N. Kazanskii ◽  
I. A. Moralev ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Flow Control ◽  
Arc Discharge ◽  
Air Flow ◽  
Electric Arc ◽  
Cylindrical Model ◽  
Electric Arc Discharge ◽  
Air Flow Control

scholarly journals Air Flow Control Around the Cylindrical Rotating Model by Means of Rotating Electric Arc in an External Magnetic Field

2017 ◽  
Vol 176 ◽  
pp. 675-680
Author(s):  
D. Munhoz ◽  
I.P. Zavershinskii ◽  
A.I. Klimov ◽  
N.E. Molevich ◽  
I.A. Moralev ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Flow Control ◽  
Air Flow ◽  
Electric Arc ◽  
Air Flow Control

scholarly journals Air flow control around a cylindrical model induced by a rotating electric arc discharge in an external magnetic field

2019 ◽  
Vol 1394 ◽  
pp. 012008 ◽  
Author(s):  
D. S. Munhoz ◽  
V. A. Bityurin ◽  
I. P. Zavershinskii ◽  
A. I. Klimov ◽  
I. A. Moralev ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Flow Control ◽  
Arc Discharge ◽  
Air Flow ◽  
Electric Arc ◽  
Cylindrical Model ◽  
Electric Arc Discharge ◽  
Air Flow Control

scholarly journals The Effect of an External Magnetic Field on the Aspect Ratio and Heat Input of Gas-Metal-Arc-Welded AZ31B Alloy Weld Joints Using a Response Surface Methodology

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5269
Author(s):  
Pankaj Sharma ◽  
Somnath Chattopadhyaya ◽  
Nirmal Kumar Singh ◽  
Marta Bogdan-Chudy ◽  
Grzegorz Krolczyk
Keyword(s):  
Magnetic Field ◽  
Response Surface Methodology ◽  
External Magnetic Field ◽  
Aspect Ratio ◽  
Response Surface ◽  
Heat Input ◽  
Feed Rate ◽  
Gas Flow ◽  
Gas Metal Arc Welding ◽  
Weld Joints

This study attempted to analyze and optimize the effect of an external magnetic field (EMF) on the aspect ratio and heat input for AZ31B weld joints that were welded using the gas metal arc welding (GMAW) process. The response surface methodology (RSM) was adopted for the critical analysis, and subsequently, mathematical models were developed based on the experimental results. It was observed that the EMF and its interaction with the wire feed rate significantly affected the aspect ratio and heat input, respectively. At 119 G (magnetic field), 700 mm/min (welding speed), 5.8 m/min feed rate, and 11.5 L/min (gas flow rate), the aspect ratio was 2.26, and the corresponding heat input factor (HIf) was 0.8 with almost full weld penetration.

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