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核工业西南物理研究院 ›› 2024, Vol. 44 ›› Issue (3): 367-372.DOI: 10.16568/j.0254-6086.202403018

• 等离子体物理 • 上一篇    

Soret 和 Dufour 效应耦合对 HL-2A 偏滤器靶板氘浓度与温度双扩散的影响

邵利华,刘泽康,栗再新* ,才来中   

  1. (核工业西南物理研究院,成都 610041) 
  • 收稿日期:2021-12-30 修回日期:2024-05-05 出版日期:2024-09-15 发布日期:2024-09-13
  • 作者简介:邵利华(1995−),男,山东聊城人,硕士研究生,从事聚变堆氚分析研究。

Influence of Soret and Dufour effect coupling on double diffusion of deuterium concentration and temperature in HL-2A diverter target plate 

SHAO Li-hua, LIU Ze-kang, LI Zai-xin, CAI Lai-zhong    

  1. (Southwestern Institute of Physics, Chengdu 610041) 
  • Received:2021-12-30 Revised:2024-05-05 Online:2024-09-15 Published:2024-09-13

摘要: 在 L/H 模放电情况下,考虑 Soret 和 Dufour 效应耦合影响,用 JD-CF 程序研究了 HL-2A 偏滤器靶板中氘粒子浓度、温度、滞留量随时间变化影响。结果表明,在 L/H 模放电下,Soret 和 Dufour 效应会对不同靶板材料(RAFM 钢/钨) 内不同位置处氘浓度分布、温度分布、氘滞留量产生一定影响,其最大变化率约为 10%。在 H 模放电下 Soret 和 Dufour 效应对靶板的影响比在 L 模放电下的更明显,且对 RAFM 钢的影响比对钨的更明显。该研究结果对研究边缘等离子体输运、 聚变堆燃料再循环、氚的滞留及投料量有一定参考价值。

关键词: Soret 效应, Dufour 效应, 偏滤器靶板, 浓度扩散, 温度扩散, JD-CF 程序, HL-2A 装置

Abstract: The JD-CF program with the Soret and Dufour coupling models was used to study the effects of deuterium particle concentration, temperature, and retention versus time in the HL-2A divertor target plate material under L-mode and H-mode discharges. The results indicate that the Soret and Dufour effects will have a certain impact on the concentration distribution, temperature distribution, and deuterium retention at different positions in different materials under the L/H mode discharges, with a maximum change rate of about 10%. Soret and Dufour effects have a more significant impact on RAFM steel under H-mode discharges than on L-mode discharges, and a more significant impact on RAFM steel than tungsten. The results have certain reference value for studying edge plasma transport, fusion reactor fuel recycling, tritium retention, and inventory. 

Key words: Soret effect, Dufour effect, Divertor target plate, Concentration distribution, Temperature distribution, JD-CF program, HL-2A tokamak 

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