接触热阻对水冷辉光放电电极温度分布影响的数值模拟  

Numerical simulation of the effect of contact thermal resistance on temperature distribution of a water-cooled glow discharge electrode

作　　者：郝郁 李伟[1] 王明旭[1] 李波[1] HAO Yu;LI Wei;WANG Ming-xu;LI Bo(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》2023年第3期277-282,共6页Nuclear Fusion and Plasma Physics

基　　金：ITER采购包项目(3.1.P6.CN.02/1A)。

摘　　要：为了研究接触热阻对陶瓷绝缘水冷辉光放电电极温度及其分布的影响,利用计算流体动力学软件ANSYS CFX,模拟了电极表面温度、温差随氮化铝陶瓷与两侧铜导体之间接触热阻的变化。模拟结果表明:随着接触热阻的增大,氮化铝陶瓷与铜接触界面的温度跳变幅度增大,辉光放电电极整体温度上升,并且辉光放电电极表面的最高温度和最大温差均随之呈现指数上升的变化趋势。In order to study the effect of contact thermal resistance on the temperature and distribution of a water-cooled glow discharge electrode,computational fluid dynamics software ANSYS CFX was used to simulate the variation of electrode surface temperature and temperature difference with various contact thermal resistance between aluminum nitride(ALN)ceramic and copper conductor on both sides.The simulation results show that with the increase of thermal contact resistance,the temperature jump at the contact interface between ALN ceramic and copper increases,the electrode temperature increases,and the maximum temperature and maximum temperature difference on the electrode surface show an exponential increasing trend.

关 键 词：GDC辉光放电电极 接触热阻 ANSYS CFX 温度分布 

分 类 号：TL626[核科学技术—核技术及应用]