2D MODELING OF THE ASDEX-UPGRADE SCRAPE-OFF LAYER AND DIVERTOR PLASMA

被引：32
|
作者：
BOSCH, HS
NEUHAUSER, J
SCHNEIDER, R
FIELD, A
HERRMANN, A
LIEDER, G
JUNKER, W
PITCHER, CS
REITER, D
BRAAMS, B
机构：
[1] UNIV STUTTGART, INST PLASMA RES, D-70569 STUTTGART, GERMANY
[2] UNIV TORONTO, INST AEROSP STUDIES, TORONTO, ON, CANADA
[3] EURATOM, KFA JULICH GMBH, FORSCHUNGSZENTRUM, IPP, D-52425 JULICH, GERMANY
[4] NYU, COURANT INST, NEW YORK, NY 10012 USA
来源：
JOURNAL OF NUCLEAR MATERIALS | 1995年 / 220卷
关键词：
D O I：
10.1016/0022-3115(94)00539-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Due to the open field lines, the scrape-off layer and divertor region of tokamak plasmas is a complex, two-dimensional system, involving transport parallel and perpendicular to the magnetic field, as well as interaction of the plasma with surfaces and with the neutral gas. Therefore sophisticated two-dimensional codes are required to model the divertor and edge physics. In this paper, the B2-EIRENE code package is used to simulate the ASDEX-Upgrade scrape-off layer plasma and the neutral gas dynamics in a fully self-consistent way. Specific ASDEX-Upgrade discharges are modelled using the actual magnetic configuration and in-vessel components. Single fluid as well as multifluid calculations including self-consistent target and wall erosion of carbon are described. At given input power and bulk plasma radiation, typical divertor plasma profiles from Langmuir probes are fitted by varying the separatrix density and the transport coefficients. On the basis of such multifluid fits, spectroscopic divertor diagnostics are numerically modelled and compared with measured profiles, and reasonable agreement is found.
引用
收藏
页码：558 / 562
页数：5
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