Erosion of tungsten armor after multiple intense transient events in ITER

被引：24

作者：

Bazylev, BN ^{[1
]}

Janeschitz, G ^{[1
]}

Landman, IS ^{[1
]}

Pestchanyi, SE ^{[1
]}

机构：

[1] Forschungszentrum Karlsruhe, IHM, D-76021 Karlsruhe, Germany

来源：

JOURNAL OF NUCLEAR MATERIALS | 2005年 / 337卷 / 1-3期

关键词：

plasma-material-interection; erosion; divertor; ELMs;

D O I：

10.1016/j.jnucmat.2004.10.070

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Macroscopic erosion by melt motion is the dominating damage mechanism for tungsten armour under high-heat loads with energy deposition W > 1 MJ/m(2) and T > 0.1 ms. For ITER divertor armour the results of a fluid dynamics simulation of the melt motion erosion after repetitive stochastically varying plasma heat loads of consecutive disruptions interspaced by ELMs are presented. The heat loads for particular single transient events are numerically simulated using the two-dimensional MHD code FOREV-2D. The whole melt motion is calculated by the fluid dynamics code MEMOS- 1.5D. In addition for the ITER dome melt motion erosion of tungsten armour caused by the lateral radiation impact from the plasma shield at the disruption and ELM heat loads is estimated. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：766 / 770

页数：5

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