纯欧姆加热下托卡马克放电启动的0维数值模拟  

Zero-dimensional simulation of tokamak discharge startup by pure ohmic heating

作　　者：彭燕丽 赵世秋 石晓峰 邸浩然 PENG Yan-li;ZHAO Shi-qiu;SHI Xiao-feng;DI Hao-ran(School of Science,East China University of Technology,Nanchang 330013)

机构地区：[1]东华理工大学理学院,南昌330013

出　　处：《核聚变与等离子体物理》2023年第2期227-231,共5页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金(11905030);江西省自然科学基金(20212BAB211002);东华理工大学博士科研启动基金项目(DHBK2019207);全国大学生创新创业训练项目(202010405002)。

摘　　要：利用0维数值模型对国际热核实验聚变堆(ITER)的启动放电进行了模拟,给出等离子体密度、等离子体电流、电子温度等参量随时间的演化,并给出电子和离子能量损失的变化。通过分析等离子体参量变化,发现对于特定的环电压,初始放电气压存在上限值,并且分析了启动过程中能量损失机制。在气体完全电离后,电子的平衡损失和输运损失占主导作用。A zero-dimension numerical model has been carried out to simulate ITER discharge.The time evolutions of plasma density,plasma current and electron temperature are calculated,as well as electron and ion energy losses.By analyzing the plasma parameters,it is found that for a given loop voltage,the initial gas pressure has an upper limit.The energy loss mechanisms during the startup process have also been analyzed.The electron equilibration and transport losses are dominant after the neutral has been fully ionized.

关 键 词：托卡马克启动 等离子体模拟 欧姆加热 

分 类 号：TL612.1[核科学技术—核技术及应用]