Modelling of 13CH4 injection and local carbon deposition at the outer divertor of ASDEX Upgrade

被引：7

作者：

Aho-Mantila, L. ^{[1
]}

Airila, M. I. ^{[2
]}

Wischmeier, M. ^{[3
]}

Krieger, K. ^{[3
]}

Pugno, R. ^{[3
]}

Coster, D. P. ^{[3
]}

Chankin, A. V. ^{[3
]}

Neu, R. ^{[3
]}

Rohde, V. ^{[3
]}

机构：

[1] Helsinki Univ Technol, Assoc Euratom TEKES, FI-02015 Helsinki, Finland

[2] VTT Tech Res Ctr Finland, Assoc Euratom TEKES, FI-02044 Espoo, Finland

[3] Max Planck Inst Plasma Phys, IPP EURATOM Assoc, D-85748 Garching, Germany

来源：

PHYSICA SCRIPTA | 2009年 / T138卷

关键词：

D O I：

10.1088/0031-8949/2009/T138/014019

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Numerical modelling of (CH4)-C-13 injection into the outer divertor plasma of the full tungsten, vertical target of ASDEX Upgrade is presented. The SOLPS5.0 code package is used to calculate a realistic scrape-off layer plasma background corresponding to L-mode discharges in the attached divertor plasma regime. The ERO code is then used for detailed modelling of the hydrocarbon break-up, re-deposition and re-erosion processes. The deposition patterns observed at two different poloidal locations are shown to strongly reflect the cross-field gradients in divertor plasma density and temperature, as well as the local plasma collisionality. Experimental results with forward and reversed B-T, accompanied by numerical modelling, also point towards a significant poloidal hydrocarbon E x B drift in the divertor region.

引用

页数：4

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