An equilibrium analysis of helically symmetries plasmas using boundary element method

Author

Igarashi, H. ; Honma, T.

Author_Institution

Dept. of Electr. Eng., Hokkaido Univ., Sapporo, Japan

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

1774

Lastpage

1776

Abstract

The authors present a computational scheme based on boundary-element methods for analyzing helically symmetric equilibrium configurations which are described by the MHD (magnetohydrodynamic) equilibrium equation. To solve the equation numerically, a boundary integral equation is introduced. The authors describe an effective scheme for calculating the principal solution to the equation which includes an infinite series of slow convergence. The vacuum fields enclosed by a helical perfectly conduction shell are calculated on the basis of this scheme. It is shown that the shifts of magnetic surfaces decrease with the helical pitch or the displacement of the helical shell

Keywords

boundary-elements methods; convergence of numerical methods; integral equations; plasma magnetohydrodynamics; plasma simulation; MHD; boundary element method; boundary integral equation; computational scheme; equilibrium analysis; helical perfectly conduction shell; helical pitch; helically symmetries plasmas; infinite series; magnetic surfaces; shifts; slow convergence; vacuum fields; Boundary element methods; Finite difference methods; Integral equations; Magnetic analysis; Magnetic confinement; Magnetic fields; Magnetohydrodynamics; Plasma confinement; Plasma stability; Stability analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104520

Filename

104520