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

Volume

37

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

3401

Lastpage

3404

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.952623

Filename

952623