Modelling studies of SOL-divertor plasmas in EAST tokamak with high heating and current driving power

Modelling studies of SOL-divertor plasmas in EAST tokamak with high heating and current driving power
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高热高电流驱动功率 EAST 托卡马克中 SOL 偏滤器等离子体的建模研究

DOI:
10.1016/j.jnucmat.2011.01.103
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发表时间:
2011-08
影响因子:
3.1
通讯作者:
G.-N. Luo
G.-N. Luo
中科院分区:
工程技术2区
文献类型:
--
作者:
YiPing Chen;J.Y. Wang;H.S. Zhou;D.S. Wang;Q.S. Hu;G.-N. Luo

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为设计W/Cu偏滤器,对EAST托卡马克装置中高加热和高驱动功率的SOL偏滤器等离子体进行了模拟研究。用边缘等离子体程序包SOLPS5.0(B2.5-Eirene)和蒙特卡罗杂质输运程序DIVIMP进行模拟。为了考察偏滤器的运行情况,得到了等离子体参数和偏滤器靶板处热流密度的分布。当nsep=0.937×10191/m3时,在SN构型和传统偏滤器(无气体或辐射靶)下,装置上的加热和驱动功率Pin= 14 MW,在外靶板处产生的峰值热流密度Qt=15.3MW/m2。本文还进行了Ne吹气的偏滤器辐射模型和W杂质从偏滤器靶板的输运模型。
The modelling studies of SOL-divertor plasmas in EAST tokamak with high heating and driving power have been carried out for the design of W/Cu divertor. The edge plasma code package SOLPS5.0(B2.5-Eirene) and Monte Carlo impurity transport code DIVIMP are used for the modelling. The plasma density at the core-SOL interface Nedgeor the separatrix density nsepis varied extensively in order to survey the operation of the divertor, the profiles of the plasma parameters and heat fluxes at the target plates of divertor have been obtained. For nsep=0.937×10191/m3, the heating and driving power Pin=14MW on the device produces the peak heat flux at the outer target plate Qt=15.3MW/m2with the SN configuration and the traditional divertor (no gas or radiation target). The radiative divertor modelling with Ne puffing and the transport modelling of W impurity from the target plates of divertor are also performed.
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