ITER transient consequences for material damage: modelling versus experiments

被引：37
|
作者：
Bazylev, B.
Janeschitz, G.
Landman, I.
Pestchanyi, S.
Loarte, A.
Federici, G.
Merola, M.
Linke, J.
Zhitlukhin, A.
Podkovyrov, V.
Klimov, N.
Safronov, V.
机构：
[1] Forschungszentrum Karlsruhe, IHM, D-76021 Karlsruhe, Germany
[2] EFDA, Close Support Unit Garching, D-85748 Garching, Germany
[3] ITER Int Team, D-85748 Garching, Germany
[4] EURATOM, Forschugnszentrum Juelich, D-52425 Julich, Germany
[5] SRC RF TRINITI, Troitsk 142190, Moscow Region, Russia
来源：
PHYSICA SCRIPTA | 2007年 / T128卷
关键词：
D O I：
10.1088/0031-8949/2007/T128/044
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Carbon-fibre composite (CFC) and tungsten macrobrush armours are foreseen as PFC for the ITER divertor. In ITER the main mechanisms of metallic armour damage remain surface melting and melt motion erosion. In the case of CFC armour, due to rather different heat conductivities of CFC fibres a noticeable erosion of the PAN bundles may occur at rather small heat loads. Experiments carried out in the plasma gun facilities QSPA-T for the ITER like edge localized mode ( ELM) heat load also demonstrated significant erosion of the frontal and lateral brush edges. Numerical simulations of the CFC and tungsten ( W) macrobrush target damage accounting for the heat loads at the face and lateral brush edges were carried out for QSPA-T conditions using the three-dimensional (3D) code PHEMOBRID. The modelling results of CFC damage are in a good qualitative and quantitative agreement with the experiments. Estimation of the droplet splashing caused by the Kelvin - Helmholtz (KH) instability was performed.
引用
收藏
页码：229 / 233
页数：5
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