Modelling of Carbon Transport in the Outer Divertor Plasma of ASDEX Upgrade

被引：5
|
作者：
Aho-Mantila, L. [1 ]
Wischmeier, M. [2 ]
Airila, M. I. [3 ]
Chankin, A. V. [2 ]
Coster, D. P. [2 ]
Fuchs, Ch [2 ]
Groth, M. [1 ]
Kirschner, A. [4 ]
Krieger, K. [2 ]
Mueller, H. W. [2 ]
Wolfrum, E. [2 ]
机构：
[1] Aalto Univ, Assoc Euratom TEKES, FI-02015 Helsinki, Finland
[2] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany
[3] VTT Tech Res Ctr Finland, Assoc Euratom TEKES, FI-02044 Espoo, Finland
[4] Forschungszentrum Julich, Assoc EURATOM FZJ, D-52425 Julich, Germany
来源：
CONTRIBUTIONS TO PLASMA PHYSICS | 2010年 / 50卷 / 3-5期
关键词：
Carbon; impurity transport; divertor; SOLPS; ERO; drifts; electric field;
D O I：
10.1002/ctpp.201010070
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Carbon transport in the ASDEX Upgrade outer divertor plasma is investigated in numerical simulations. The SOLPS5.0 code package is used to model the scrape-off layer plasma in a set of repeated lower-single-null L-mode discharges. Special emphasis is given to replicate the plasma conditions measured in the full tungsten, vertical outer target of ASDEX Upgrade, and solutions with and without the effect of drifts are presented. First ERO simulations of hydrocarbon transport in a SOLPS plasma background including drifts are carried out, and significantly closer match to the experimental C-13 deposition pattern is obtained than with the solution without drifts. The 2D divertor electric field predicted by SOLPS is applied to the ERO modelling, and it is observed to result in a poloidal hydrocarbon drift that agrees well with the experiment. An increased carbon deposition efficiency, particularly upstream from the source, is obtained in the normal ASDEX Upgrade field configuration. (c) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：439 / 444
页数：6
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