Optimization of energy confinement in the 1/ν regime for stellarators

被引：8

作者：

Seiwald, B. ^{[1
]}

Kasilov, S. V. ^{[1
,2
]}

Kernbichler, W. ^{[1
]}

Kalyuzhnyj, V. N. ^{[2
]}

Nemov, V. V. ^{[1
,2
]}

Tribaldos, V. ^{[3
]}

Jimenez, J. A. ^{[3
]}

机构：

[1] Graz Univ Technol, Inst Theoret Phys Computat Phys, Assoc EURATOM OAW, A-8010 Graz, Austria

[2] Kharkov Phys & Technol Inst, Natl Sci Ctr, Inst Plasma Phys, UA-61108 Kharkov, Ukraine

[3] Asociac EURATOM CIEMAT, Madrid, Spain

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2008年 / 227卷 / 12期

基金：

奥地利科学基金会; 欧盟地平线“2020”;

关键词：

fusion plasma; neoclassical transport; optimization; stellarator;

D O I：

10.1016/j.jcp.2008.02.026

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A set of powerful tools has been developed in the last years for the design of new stellarator devices. These codes, usually working in magnetic co-ordinates, comprise minimization of neoclassical transport, maximizing equilibrium and stability properties, etc. However, for certain conditions the stellarator magnetic field can be originally obtained in the real space coordinates and there is no necessity in its transformation to magnetic coordinates. Here a procedure working in real space co-ordinates is presented for maximizing the plasma energy content, based on reducing the most unfavorable, 1/nu, neoclassical transport. This tool is especially useful for existing stellarator devices which are not fully optimized with respect to neoclassical transport. Preliminary results for the "heliac-type" stellarator TJ-II are presented showing a configuration with almost twice the stored energy of the standard TJ-II configuration. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：6165 / 6183

页数：19

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