Improvement of the moments method for MHD equilibrium calculation in a divertor tokamak configuration

被引:1
|
作者
Atanasiu, CV
Moraru, A
Subbotin, AA
机构
[1] MAX PLANCK INST PLASMA PHYS,EURATOM ASSOC,D-85748 GARCHING,GERMANY
[2] POLYTECH UNIV BUCHAREST,R-77206 BUCHAREST,ROMANIA
[3] RUSSIAN RES CTR,IV KURCHATOV ATOM ENERGY INST,MOSCOW 123182,RUSSIA
[4] INST ATOM PHYS,IFTAR L22,R-76900 BUCHAREST,ROMANIA
关键词
plasma equilibrium and confinement; tokamak; magnetic divertor; flux coordinates;
D O I
10.1016/0010-4655(96)00094-X
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
In this paper we present a method to calculate the fixed boundary MHD equilibrium for an axisymmetric divertor tokamak configuration. A ''classical'' flux coordinate system, amended by a ''cast function'', has been used. Thus, the unknown moments - the solution of the equilibrium equation - are determined by the difference between the real flux surface contours and those described by the cast function only. With this procedure, the necessary number of moments to describe the flux surfaces in a quite complicated separatrix configuration is small enough to make computations time-efficient. As an example of our approach, the metric coefficients for a particular equilibrium configuration of the ASDEX-Upgrade tokamak have been computed.
引用
收藏
页码:137 / 152
页数:16
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