Numerical simulation of high-current vacuum arc characteristics under combined action of axial magnetic field and external magnetic field from bus bar

Lijun Wang; Shenli Jia; Ke Liu; Liuhuo Wang; Zongqian Shi
October 2009
Physics of Plasmas;Oct2009, Vol. 16 Issue 10, p103502
Academic Journal
In this paper, the two-dimensional high-current vacuum arc (HCVA) model under the combined action of axial magnetic field (AMF) and external magnetic field from bus bar (EMFBB) is established. Based on this model, the influence of AMF and EMFBB on HCVA characteristics can be simulated and analyzed. Simulation results show that the HCVA column will be deflected by the Lorentz force generated by EMFBB and higher arc current. Moreover, the deflection level will be increased with the increase in external EMFBB strength. For HCVA, due to the smaller axial velocity near cathode side, the deflection of plasma parameters (such as ion number density, ion temperature, electron temperature, plasma pressure, and so on) near cathode side is more significant than that near anode side. The current deflection near cathode side toward direction of Lorentz force is more significant than that near anode side.


Related Articles

  • Bell’s theory with no locality assumption. Tresser, C. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Aug2010, Vol. 58 Issue 3, p385 

    We prove versions of the Bell and the GHZ theorems that do not assume locality but only the effect after cause principle (EACP) according to which for any Lorentz observer the value of an observable cannot change because of an event that happens after the observable is measured. We show that the...

  • On the motion of macroparticles in inhomogeneous magnetic field. Nedospasov, A.; Nenova, N. // Technical Physics Letters;Sep2011, Vol. 37 Issue 9, p854 

    The behavior of macroparticles that form a near-wall dust in tokamaks is described with allowance for the force of gravity, force of entrainment by plasma ion flux, and Lorentz force acting on the motion of charged macroparticles in an inhomogeneous magnetic field. It is shown that, in some...

  • Synthetic magnetic fields for ultracold neutral atoms. Lin, Y.-J.; Compton, R. L.; Jiménez-García, K.; Porto, J. V.; Spielman, I. B. // Nature;12/3/2009, Vol. 462 Issue 7273, p628 

    Neutral atomic Bose condensates and degenerate Fermi gases have been used to realize important many-body phenomena in their most simple and essential forms, without many of the complexities usually associated with material systems. However, the charge neutrality of these systems presents an...

  • Toward a nonlinear theory of acceleration of charged particles in a linearly polarized EH-ubitron field. Krut�ko, O. B. // Technical Physics;Jan99, Vol. 44 Issue 1, p79 

    The motion of charged particles in a linearly polarized EH-ubitron field with sinusoidal time dependence of the variable component of the magnetic field is investigated. It is shown that, depending on the parameters of the system and the initial conditions of entry of the particle into the...

  • Conservation Law for the Binormal Momentum in the Presence of Charge Drift in a Magnetic Field. Trubnikov, B. A. // Journal of Experimental & Theoretical Physics;Sep2000, Vol. 91 Issue 3, p479 

    It is well-known that the motion of a charged particle in a magnetic field is described by the drift approximation, in which it is assumed that the squared velocity of the particle and the magnetic moment of the Larmor circle are conserved. It is shown that to a first approximation a third...

  • Statistical description and transport in stochastic magnetic fields. Vanden Eijnden, E.; Balescu, R. // Physics of Plasmas;Mar1996, Vol. 3 Issue 3, p874 

    Presents the statistical description of particle motion in a stochastic magnetic field. Stochastic Liouville equation associated with equations of motion of a test particle; Probability distribution function of the system for magnetic fields and collisional processes; Influence on the...

  • Particle acceleration near X-type magnetic neutral lines. Deeg, Hans-Jörg; Borovsky, Joseph E.; Duric, Nebojsa // Physics of Fluids B: Plasma Physics;Sep91, Vol. 3 Issue 9, p2660 

    The behavior of charged particles near X-type magnetic neutral lines is investigated. The magnetic field is taken to be hyperbolic and time stationary, with a uniform electric field perpendicular to the magnetic field. The general properties of the orbits of noninteracting particles in that...

  • Stochastic particle diffusion in velocity space for a bumpy torus. Chen, G. L.; Owen, L. W.; Batchelor, D. B.; Hedrick, C. L. // Physics of Fluids (00319171);Mar85, Vol. 28 Issue 3, p883 

    Nonadiabatic changes of the magnetic moment μ in the ELMO Bumpy Torus-Scale (EBT-S) have been studied both analytically and numerically. Simple forms of Δ μ and gyrophase change were obtained, permitting the changes in these quantities to be studied using an iteration mapping. The...

  • Particle Beam Polarization in Storage Rings Controlled by Longitudinal Magnetic Field. Silenko, A. Ya. // Technical Physics Letters;Mar2003, Vol. 29 Issue 3, p237 

    It is suggested to use a longitudinal magnetic field for changing the polarization of particles (electrons, positrons, muons) in the beam of a storage ring. The change from vertical to longitudinal polarization by single or multiple switching of the longitudinal field for a certain time interval...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics