Magnetohydrodynamic mechanisms of electric-field transport suppression and plasma-rotation generation, with special reference to tokamak’s reversed-shear confinement
Magnetohydrodynamic mechanisms of electric-field transport suppression and plasma-rotation generation, with special reference to tokamak’s reversed-shear confinement
复制标题
电场输运抑制和等离子体旋转产生的磁流体动力学机制，特别参考托卡马克的反向剪切约束
DOI：
10.1063/1.873559
复制
发表时间：
1999
影响因子：
2.2
通讯作者：
K. Itoh
中科院分区：
文献类型：
--
作者：
A. Yoshizawa;N. Yokoi;S. Itoh;K. Itoh
本文对托卡马克反剪切约束条件下的电场输运抑制和等离子体流产生机制进行了磁流体动力学分析。通过径向电场和电荷不均匀性的联合作用，可以抑制热的湍流输运。指出了RS模内部输运势垒与高约束模边缘输运势垒的相似性。凹电流分布是导致等离子体整体旋转的一个原因，而后者导致负径向电场的出现，而负径向电场在前者的抑制机制中起着关键作用。
A magnetohydrodynamic analysis is made of the mechanisms of electric-field transport suppression and plasma-flow generation in the context of tokamak’s reversed-shear (RS) confinement. The turbulent transport of heat is shown to be suppressed through the combined effect of radial electric field and charge inhomogeneity. The similarity is pointed out between the internal transport barrier in RS modes and the edge counterpart in high-confinement modes. A concave electric-current profile is shown to be a cause of the global plasma rotation, and the latter contributes to the occurrence of a negative radial electric field that plays a key role in the former suppression mechanism.
影响因子：
3.3
作者：
A. Gibson;T. Sekiguchi;K. Lackner;S. Bodner;R. Hancox
通讯作者：
A. Gibson;T. Sekiguchi;K. Lackner;S. Bodner;R. Hancox
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
K. Itoh;et. al.
通讯作者：
et. al.