摘要
本文研制了适合偏滤器位形的１－１／２维托卡马克输运程序（ＴＤＴＲ），并用该程序模拟了托卡马克装置放电期间（等离子体电流平顶段）偏滤器位形的演化。在纯欧姆加热和有辅助加热两种放电方式下，对不同等离子体电流分布、拉长比、三角形变等参数下等离子体平衡位形的演化过程进行了计算机模拟。结果表明，初始电流分布较平坦时，Ｘ点的位置几乎不随时间变化；对中心峰化的电流分布，偏滤器位形只能维持０．３—０．４ｓ。
A 1-1 /2 dimensional tokanlak transport code TDTR able to optimize a divertor configuration has been developed. Evolution of the divertor configuration during a tokamak discharge (in the plateau phase of plasma current)is numerically studied using the code.Numerical simulations with different initial current profile,elongation.and triallgularity in thecases of ohmic heating and auxiliary heating are implemented.It is shown that the position ofthe X-point has little change for an initial centrally flattened plasma current profile.but thedivertor configuration can only be maintained for about 0.3-0.4s in the case of a peakingcurrent profile.
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
1996年第1期14-19,共6页
Nuclear Fusion and Plasma Physics
