Effects of a Transverse Magnetic Field on a Constricted Electric Arc

1975 ◽  
Vol 97 (2) ◽  
pp. 267-273 ◽  
Author(s):  
F. W. Ahrens ◽  
H. N. Powell
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic ◽  
Electric Arc ◽  
Temperature Fields ◽  
Viscous Force ◽  
Tube Radius ◽  
Current Tube ◽  
Two Dimensional Flow ◽  
Current Characteristics ◽  
A Current

The interaction of a constricted electric arc (argon at 1 atm) with an applied perpendicular magnetic field has been investigated analytically. The resulting (two-dimensional) flow and temperature fields, conductive and radiative wall heat transfer, and voltage-current characteristics of the arc are predicted. Three characteristic parameters are isolated: (I/a = current/tube radius), (Re = Lorentz and viscous force parameter), (RT = radiation parameter). When radiation is negligible, the first two are sufficient to scale the effects of any combination of current, tube radius, and applied magnetic field strength. A twin vortex flow pattern is predicted, with the displacement of the vortex “eyes” greatest for high applied magnetic fields and low currents. Comparisons with experimental results from the literature are good to satisfactory.

Analysis of open-flame electric arc in transverse magnetic field

2000 ◽  
Vol 38 (4) ◽  
pp. 515-519 ◽  
Author(s):  
E. B. Kulumbaev ◽  
Y. M. Lelevkin
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic Field ◽  
Transverse Magnetic ◽  
Electric Arc ◽  
Open Flame

scholarly journals Effect of radiation and porosity parameter on magnetohydrodynamic flow due to stretching sheet in porous media

2011 ◽  
Vol 15 (2) ◽  
pp. 517-526 ◽  
Author(s):  
Phool Singh ◽  
Tomer Singh ◽  
Sandeep Kumar ◽  
Deepa Sinha
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Stretching Sheet ◽  
Transverse Magnetic ◽  
Stream Velocity ◽  
Electrically Conducting ◽  
Boundary Layer Equations ◽  
Porosity Parameter ◽  
Volumetric Rate ◽  
Two Dimensional Flow

An analysis is made for the steady two-dimensional flow of a viscous incompressible electrically conducting fluid in the vicinity of a stagnation point on a stretching sheet. Fluid is considered in a porous medium under the influence of (i)transverse magnetic field, (ii)volumetric rate of heat generation/absorption in the presence of radiation effect. Rosseland approximation is used to model the radiative heat transfer. The governing boundary layer equations are transformed to ordinary differential equations by taking suitable similarity variables. In the present reported work the effect of porosity parameter, radiation parameter, magnetic field parameter and the Prandtl number on flow and heat transfer characteristics have been discussed. Variation of above discussed parameters with the ratio of free stream velocity parameter to stretching sheet parameter have been graphically represented.

scholarly journals MHD couette flow with heat transfer between two horizontal plates in the presence of a uniform transverse magnetic field

2003 ◽  
pp. 1-9
Author(s):  
G. Bodosa ◽  
A.K. Borkakati
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic Field ◽  
Constant Velocity ◽  
Transverse Magnetic ◽  
Parallel Plates ◽  
Electrically Conducting ◽  
Electrically Conducting Fluid ◽  
Fluid Velocities ◽  
Two Dimensional Flow ◽  
Mhd Couette Flow

The problem of an unsteady two-dimensional flow of a viscous incompressible and electrically conducting fluid between two parallel plates in the presence of a uniform transverse magnetic field has been analyzed, when in case-I the plates are at different tem?peratures and in case-II the upper plate is considered to move with constant velocity where as the lower plate is adiabatic. Fluid velocities and temperatures are obtained and plotted graphically.

Quenching of an electric arc in a vacuum gap with a uniform transverse magnetic field

2010 ◽  
Vol 36 (13) ◽  
pp. 1210-1214 ◽  
Author(s):  
D. F. Alferov ◽  
M. R. Ahmetgareev ◽  
D. V. Yevsin ◽  
V. P. Ivanov
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic Field ◽  
Transverse Magnetic ◽  
Electric Arc ◽  
Vacuum Gap
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