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  

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

作　　者：邵利华 刘泽康 栗再新[1] 才来中[1] SHAO Li-hua;LIU Ze-kang;LI Zai-xin;CAI Lai-zhong(Southwestern Institute of Physics,Chengdu 610041)

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2024年第3期367-372,共6页Nuclear Fusion and Plasma Physics

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。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.

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 

分 类 号：TL62[核科学技术—核技术及应用]