Title :
A hybrid implicit numerical method for the analysis of the magneto-plasmadynamics in a gas discharge
Author :
Borghi, Carlo A. ; Cristofolini, Andrea
Author_Institution :
Dept. of Electr. Eng., Bologna Univ., Italy
fDate :
9/1/2001 12:00:00 AM
Abstract :
A fully implicit method for the solution of the magneto-hydrodynamic problem in an SF6 circuit breaker is presented. The self induced magnetic field is considered in order to analyze the magnetohydrodynamic interaction in the plasma. The effects of the interaction between the magnetic field and the flow velocity on electrodynamics are evaluated. The model discretizes the Navier-Stokes equations by means of a finite volume formulation and the electrodynamics by means of a finite element method. Time integration is performed separately by means of a multistep method
Keywords :
Navier-Stokes equations; SF6 insulation; circuit-breaking arcs; electrodynamics; finite element analysis; finite volume methods; mesh generation; plasma magnetohydrodynamics; Navier-Stokes equation; SF6; SF6 circuit breaker; arc; electrodynamics; finite element method; finite volume method; flow velocity; gas discharge; hybrid implicit numerical method; magneto-plasmadynamics; mesh generation; multistep method; self-induced magnetic field; spatial discretization; time integration; Circuit breakers; Discharges; Electrodynamics; Magnetic analysis; Magnetic flux; Magnetic flux density; Magnetic separation; Magnetohydrodynamics; Maxwell equations; Mesh generation;
Journal_Title :
Magnetics, IEEE Transactions on
