Improved poloidal convergence of the MARS code for MHD stability analysis

被引：13

作者：

Liu, DH ^{[1
]}

Bondeson, A

机构：

[1] Chalmers Univ Technol, Dept Electromagnet, S-41296 Gothenburg, Sweden

[2] Chalmers Univ Technol, EURATOM, NFR, Fus Assoc, S-41296 Gothenburg, Sweden

来源：

COMPUTER PHYSICS COMMUNICATIONS | 1999年 / 116卷 / 01期

关键词：

magnetohydrodynamics stability analysis; convergence;

D O I：

10.1016/S0010-4655(98)00145-3

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Most codes for the analysis of magnetohydrodynamics (MHD) stability experience difficulties when the equilibrium is highly shaped or has an X-point. In particular, codes using Fourier expansion in the poloidal direction may need a large number of Fourier components to give reasonably accurate values of the growth rate. In the present work, it is shown that the poloidal convergence can be improved by a judicious choice of normalization factors for the perturbation quantities and multipliers for the equations. Using this method, a new version of the MARS code has been produced with significantly improved poloidal convergence. (C) 1999 Elsevier Science B.V.

引用

页码：55 / 64

页数：10

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