磁剪切对电子在磁岛中热输运的影响
Effect of magnetic shearing on thermal transport of electrons in magnetic islands
李泽坤 1夏清豪 1査学军1
作者信息
摘要
通过数值求解托卡马克等离子体能量输运方程,研究了磁剪切参数对磁岛内电子温度分布和热输运的影响.结果表明,对于不同的安全因子的径向分布,磁剪切参数会影响有效径向热输运系数,剪切程度越高,有效径向热输运系数 越大;当磁场扰动程度足够高时,高剪切对有χr效径向热输运系数χr影响会降低.
Abstract
The influence of magnetic shear parameters on the electron temperature distribution and heat transport in the magnetic island were studied by numerically solving the tokamak plasma energy transport equation.The results show that for different radial distributions of the safety factor,the magnitude of the magnetic shear parameter will affect the magnitude of the effective radial heat transport coefficient.The higher the shear degree,the greater the effective radial heat transport χrcoefficient.And when the magnetic field perturbation degree is high enough,the effect of high shear on radial heat transport χrwill be reduced.
关键词
磁岛/有效径向热输运/磁剪切Key words
magnetic island/effective radial heat transport/magnetic shear引用本文复制引用
基金项目
国家磁约束核聚变能发展研究专项资助(2018YFE0309100)
国家自然科学基金项目资助(11975022)
出版年
2024
NETL
NSTL
维普
万方数据