Gyrokinetic simulations of impurity, He ash and α particle transport and consequences on ITER transport modelling
Gyrokinetic simulations of impurity, He ash and α particle transport and consequences on ITER transport modelling
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DOI：
10.1088/0029-5515/49/5/055013
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发表时间：
2009-04
期刊：
影响因子：
3.3
通讯作者：
C. Angioni;A. G. Peeters;G. Pereverzev;A. Bottino;J. Candy;R. Dux;E. Fable;T. Hein;R. E. Waltz
中科院分区：
文献类型：
--
作者：
C. Angioni;A. G. Peeters;G. Pereverzev;A. Bottino;J. Candy;R. Dux;E. Fable;T. Hein;R. E. Waltz
本文用GS2、GYRO和最近开发的GKW三种回旋动力学程序，对背景静电等离子体湍流产生的轻、重杂质和高能α粒子的输运进行了线性和非线性模拟研究。阐述了杂质和高能α粒子的基本输运机制，并结合一个简单的解析推导。通过ASTRA模拟评估了这些理论结果在ITER标准情景输运建模中的相关性，其中通过拟合回旋结果的公式描述了α粒子和He灰等少数物种的输运。
The transport of light and heavy impurities, as well as of energetic α particles, produced by the background electrostatic plasma turbulence is investigated by means of linear and nonlinear simulations with three gyrokinetic codes, GS2, GYRO and the recently developed GKW. The basic transport mechanisms of impurities and energetic α particles are elucidated, in combination with a simple analytical derivation. The relevance of these theoretical results in the transport modelling of the ITER standard scenario is assessed by means of ASTRA simulations, in which the transport of minority species like α particles and He ash is described by means of formulae which fit the gyrokinetic results.