首页|Simulations of fast component and slow component of SMBI on HL-2A tokamak

Simulations of fast component and slow component of SMBI on HL-2A tokamak

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It is very important to improve the penetration depth and fueling efficiency of supersonic molecular beam injection (SMBI) especially for the next generation fusion devices such as ITER.Two components,a fast component (FC) and a slow component (SC),have been observed in the HL-2A SMBI experiments for several years,and the FC can penetrate much more deeply than the common SMBIs which draws a great deal of attention for a better fueling method.It is the first time to the FC and SC of SMBI have been simulated and interpreted in theory and simulation in this paper with the trans-neut module of the BOUT++ code.The simulation results of the FC and SC are clear and distinguishable in the same way as the observation in experiment.For the major mechanism of the FC and SC,it is found that although the difference in the injection velocity has some effect on the penetration depth difference between the FC and SC,it is mainly caused by the self-blocking effect of the first ionized SMB.We also discuss the influence of the initial plasma density on the FC and SC,and the variation of the SC penetration depth with its injection velocity.

supersonic molecular beam injectionfast component and slow componentpenetration depthself-blocking effect

Yong-Fu Shi、Zhan-Hui Wang、Qi-Long Ren、Ai-Ping Sun、De-Liang Yu、Wen-Feng Guo、Min Xu

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Southwestern Institute of Physics, Chengdu 610041, China

Institute of Plasma Physics, Chinese Academy of sciences, Hefei 230031, China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChinese National Fusion Project for ITERChinese National Fusion Project for ITERChinese National Fusion Project for ITERChinese National Fusion Project for ITERChinese National Fusion Project for ITERChinese National Fusion Project for ITERInternational S&T Cooperation Program of China

1157505511375053114725192013GB1110052013GB1070012014GB 1080042014GB1100042015GB1100012015DFA61760

2017

10.1088/1674-1056/26/5/055201

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDCSCDSCIEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2017.26(5)
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