OEDGE modeling of plasma contamination efficiency of Ar puffing from different divertor locations in EAST

OEDGE modeling of plasma contamination efficiency of Ar puffing from different divertor locations in EAST
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EAST 中不同偏滤器位置吹氩的等离子体污染效率的 OEDGE 模型

DOI:
10.1088/2058-6272/aaa7e8
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发表时间:
2018-01
期刊:
Plasma Sci. Technol.
影响因子:
--
通讯作者:
Z.W. Wu
Z.W. Wu
中科院分区:
其他
文献类型:
--
作者:
P.F. Zhang;L. Zhang;Z.W. Wu

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利用OEDGE软件模拟了EAST超导托卡马克装置在典型欧姆等离子体条件下,内偏滤器、外偏滤器和整流罩不同位置的Ar喷吹对等离子体的初始和长期污染效率。结果发现,初始Ar污染效率取决于在不同的喷气位置的局部等离子体条件。然而,对于Ar再循环效率>0.9,其快速接近类似的稳态值。OEDGE模拟表明,最终的平衡Ar污染效率是显着低于更封闭的下偏滤器比上偏滤器。
Modeling with OEDGE was carried out to assess the initial and long-term plasma contamination efficiency of Ar puffing from different divertor locations, i.e. the inner divertor, the outer divertor and the dome, in the EAST superconducting tokamak for typical ohmic plasma conditions. It was found that the initial Ar contamination efficiency is dependent on the local plasma conditions at the different gas puff locations. However, it quickly approaches a similar steady state value for Ar recycling efficiency >0.9. OEDGE modeling shows that the final equilibrium Ar contamination efficiency is significantly lower for the more closed lower divertor than that for the upper divertor.
DOI: 10.1016/s0022-3115(98)00653-9
发表时间: 1998-08
影响因子: 3.1
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